lalchhuanawma9654 25.02.2020 Biology Secondary School +15 pts. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). endobj <>stream endstream Vallisneria americana, commonly called wild celery, water-celery, tape grass, or eelgrass, is a plant in the family Hydrocharitaceae, the "tape-grasses". endstream 36 0 obj <>>>/BBox[0 0 384 600]/Length 44>>stream x�s endobj Vallisneria zeichnen sich durch ihre Blätter aus, die sieben Adern haben; Diese Blätter sind manchmal ein auffälliges Rot, das sich bei intensivem Licht in Grün verwandelt. However, the familiar aquarium plant, vallisneria, uses the water for pollination. Pollination by water, hydrophily, uses water to transport pollen, sometimes as whole anthers; these can travel across the surface of the water to carry dry pollen from one flower to another. Physics. In sea grass, the female flowers are seen submerged in water and the pollen grains are released inside the water. <>stream x�s Pollination by water, hydrophily, uses water to transport pollen, sometimes as whole anthers; these can travel across the surface of the water to carry dry pollen from one flower to another. ��w3T�PI�2T0 BC#C#C3��\. ͐,.�. <>stream endstream The following article is from The Great Soviet Encyclopedia (1979). In this plant ( Vallisneria ) flowers are unisexual. endstream II. ͐,.�. 22 0 obj The aquatic plant in which pollination is not carried out by water is: If the female parent produces unisexual flower: (1) Emasculation must be done before maturity, (2) Emasculation must be done after maturity, (3) Emasculation must be done before pollination. Vallisneria endobj ͐,.�. The pollen grains are kept above the water, where they are transported via floating male flowers that plow into female flowers to effect pollination. Familiar wind-pollinated flowers are grasses, sedges, rushes, cattail, dock, goosefoot, hemp, nettle, plantain, alder, hazel, birch, oak, and poplar. x�S�*�*T0T0 B�����id�����]�"� �� Y Explain the process of pollination in Vallisneria .How is it different in water- lily , which is also an aquatic plant ? Die Hauptart ist die Vallisneria gigantea, die mehr als 6 Fuß lang wird. ͐,.�. General Science. <>>>/BBox[0 0 384 600]/Length 44>>stream This action cannot be undone. shreya from GIIS, KualaLumpur. Ancient History. Add your answer and earn points. View All Answers (13) Ans 1: × Edit Post. 38 0 obj Moreover, there are two possible methods where pollination occurs in water: water-pollinated, species rely on. Though there are a number of aquatic plants, only in few plants pollination takes place by water. Water-pollinated plants are aquatic and pollen is released into the water. The plant is not self-fertile. Chemistry. 0 � � X X &. endobj NCERT NCERT Exemplar NCERT Fingertips Errorless Vol-1 Errorless Vol-2. Once at the surface, the tiny male flowers float around like little pollen-filled rafts. POLLEN ON WATERÕS SURFACE is a second method. �3� Vallisneria. It is limited only in the 30 genera of monocotyledons. 49 0 obj The male flowers are borne low down amongst the radical leaves on short-stalked spadix inflorescences out of which the individual flowers get de­tached and float freely in large numbers on the water surface. endstream x�s endobj 2.1k SHARES. Vallisneria is a submerged plant that spreads by runners and sometimes forms tall underwater meadows. 14 0 obj 37 0 obj <>stream ͐,.�. Class : Class 5 . endobj ͐,.�. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). ��w3T�PI�2T0 BC#C#3��\. endobj endobj In water … (4) Water dissolves the minerals in the soil so that they become available to the seed. When pollination occurs in these plants, it is called hypohydrophily, e.g. View All Answers (13) Ans 1: × Edit Post. Water lily is also an aquatic plant with large conspicuous coloured flowers. 6 0 obj 16 0 obj So the correct option is 'epihydrophily'. 29 0 obj asked Oct 11, 2018 in Biology by Supria (63.9k points) List the adaptive features of water-pollinated flowers like Vallisneria. Viola Yucca Oxalis zostera Answer : D Solution : Pollination by water is called hydrophily. NCERT NCERT Exemplar NCERT Fingertips Errorless Vol-1 Errorless Vol-2. ��w3T�PI�2T0 BC#c33��\. Which of the following is pollinated by water? endobj Insect pollinated flowers have coloured petals, big size and they offer fragrance and nectar to attract … Water hyacinth II. x�s Both 1 and 2 x�S�*�*T0T0 B�����ih�����]�"� �� [ <>>>/BBox[0 0 384 600]/Length 43>>stream x�s 1.2k + 800+ + 800+ + लिखित उत्तर . They are carried by water currents reaching the female flowers and the stigma. �W Answer: Explaination: Vallisneria is pollinated by water and water lily is pollinated … ͐,.�. ͐,.�. �3� <>stream x�+� � | Pollination by water is called hydrophily and the flowers pollinated by water are said to be hydrophilous (Example: Vallisneria, Hydrilla). and is pollinated by Water. endstream ��w3T�PI�2T0 BC#C#3��\. Some weeds, such as Australian sea grass and pond weeds, are pollinated by water. It is dioecius in nature and thus pollinate… 1. endobj and is pollinated by Water. <>>>/BBox[0 0 384 600]/Length 43>>stream 2:40 The pollen floats on water. To view Explanation, Please buy any of the course from below. NCERT RD Sharma Cengage KC Sinha. 12 0 obj Ask your question. endobj ͐,.�. 45 0 obj Biology. In this form, the pollen is distributed through rivers or streams, passively flowing its way to other plants. Indus Valley Civilization. endstream characteristics in Vallisneria americana—a water-pollinated plant with a distribution that has been reduced from historic levels. ��w3T�PI�2T0 BC#C#C3��\. Water hyacinth II. endobj It is in leaf all year, in flower from June to October. ��w3T�PI�2T0 BC#C#C3��\. endstream ��w3T�PI�2T0 BC#C#C3��\. x�s Water pollination occurs very rarely. 1. - 19898371 41 0 obj They pollinate on the water in spike of the water. Examples are Enhalus, Lagarosiphon and Vallisneria . x�s <>stream <>>>/BBox[0 0 384 600]/Length 43>>stream <>stream <>>>/BBox[0 0 384 600]/Length 43>>stream 15 0 obj <>stream It occurs mostly in the aquatic plants like Vallisneria, Hydrilla and Zostera etc. Water hyacinth II. ��w3T�PI�2T0 BC#C#3��\. Male and female reproductive organs are generally found in separate flowers. Explanation:Pollination with the help of water is called as hydrophily. Living vegetatively as a submersed aquatic, its dioecious flowers are brought together at the surface of the water in most ingenious fashion. <>stream ��w3T�PI�2T0 BC#c3C3��\. In the aquarium Vallisneria are generally very easy to grow—as long as you don’t try to keep them in too soft or acidic water. endstream endobj 43 0 obj endstream <>stream endobj x�s Download PDF's. Orchids are highly-valued flowers, with many rare varieties. Select the plants pollinated by water. Epihydrophily: Pollination occurs on the surface of water. Physics. endobj Maths. Join now . Water lily is also an aquatic plant with large conspicuous coloured flowers. Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 Class … Biology. endobj Vallisneria americana is an evergreen Perennial. x�s <>>>/BBox[0 0 384 600]/Length 44>>stream Vallisneria pollen grains are released on the surface of the water, which are passively carried away by water currents; some of them eventually reach the female flower. endobj ͐,.�. [AI 2010C] Answer/Explanation. freshwater plants and marine water plants. In plants such as Eelgrass (Vallisneria), the male flowers detach from the plant and float on the surface of the water, passively flowing and coming in contact with female flower’s stigmas. Select the plants which are pollinated by water. endstream x�s <>>>/BBox[0 0 384 600]/Length 44>>stream endobj At maturity male flowers are detached from the male inflorescence and begin to float on surface of water… Genetic self-incompatibility tends to increase, If a flower is to be pollinated by moths, it should. ͐,.�. It occurs mostly in the aquatic plants like Vallisneria, Hydrilla and Zostera etc. <>>>/BBox[0 0 384 600]/Length 43>>stream NCERT NCERT Exemplar NCERT Fingertips Errorless Vol-1 Errorless Vol-2. x�S�*�*T0T0 B�����i�����U�"� �� Zostera 4. endobj ��w3T�PI�2T0 BC#C#3��\. endobj endobj NEET 2021 - Achiever Batch - Aryan Raj Singh, Strategies for Enhancement in Food Production, Classification of Elements and Periodicity, Organic Chemistry - Some Basic Principles And Techniques, General Principles and Processes of Isolation of Elements, Differentiations & Conversions - Organic Chemistry, Systems of Particles and Rotational Motion, Crack NEET with Online Course - Free Trial, S-15, 2nd floor Uphar Cinema Market, above Red Chilli Restaurant, Green Park Extension, New Delhi, 110016. x�+� � | Some are pollinated as the currents of wind or water act as vectors. NCERT RD Sharma Cengage KC … 27 0 obj Vallineria is a submerged fresh water plant. Books. endstream ��w3T�PI�2T0 BC#C#3��\. These are aquatic plants. In water … <>>>/BBox[0 0 384 600]/Length 43>>stream The plant is not self-fertile. x�S�*�*T0T0 B�����ih�����]�"� � g endstream Chemistry. Vallisneria has long been counted one of the classic examples of cross-pollination. Biology. <>>>/BBox[0 0 384 600]/Length 43>>stream NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. ��w3T�PI�2T0 BC#C#C3��\. x�s ��w3T�PI�2T0 BC#C#C3��\. Wind and Water Pollination. These flowers do not generally attract animal pollinators. In Vallisneria male and female flowers are produced on separate plants. endobj endstream endstream x�+� � | NCERT RD Sharma Cengage KC Sinha. ͐,.�. 42 0 obj They are underwater grasses with large creeping roots and linear leaves. endstream <>stream x�+� � | endobj endobj �W In these plants pollen grains from the flowers are transferred to the stigma through the agency of water. I. I. 1 0 obj Plants, which occur below the water level are called sub-merged polants. Log in. Join now. �W Suitable for: light (sandy), medium (loamy) and heavy … Water is generally an enemy of pollen. Similar to wind pollinated terrestrial plants, Vallisneria use water currents to disperse their pollen. Vallisneria. Single white female flowers grow to the water surface on very long stalks. ��w3T�PI�2T0 BC#C#3��\. x�S�*�*T0T0 B�����i�����U�"� ��� Water Thyme (Hydrilla), Ditch Grasses (Ruppia), Waterweeds (Elodea) and Water Starwort (Callitriche) are notable examples where this method of pollination is observed. Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 Class … 1.0k views. �W endobj 17 0 obj Vallisneria has long been counted one of the classic examples of cross-pollination. Consider the following features seen in a plant: I. 3 0 obj <>>>/BBox[0 0 384 600]/Length 44>>stream �W It is hardy to zone (UK) 8. x�+� � | endobj ��� 30 0 obj x�s endstream It is hardy to zone (UK) 9. ͐,.�. This plant is an aquatic weed. x�s Many flowers are pollinated without the aid of animals (insect, bird, or mammal). Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocots, e.g. Chemistry. Books. Zostera III. endobj <>stream endobj List the adaptive features of water-pollinated flowers like Vallisneria. The leaves have rounded tips, and definite raised veins. In Vallisneria pollination is through hdrophilly ie through water. <>stream x�+� � | Amorphophallus IV. 34 0 obj Mention the pollinating agents for aquatic plants, Vallisneria and water lily, respectively. ��w3T�PI�2T0 BC#C#C3��\. 25 0 obj x�s 3:01 1.1k LIKES. <>>>/BBox[0 0 384 600]/Length 44>>stream endobj 20 0 obj At maturity male flowers are … Log in. endobj 8 0 obj x�S�*�*T0T0 B�����ih�����]�"� �� W NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. 10 0 obj During germination, this facilitates entry of: (1) Following hydration, enzymes break down stored food and make it available for the embryo. 2.1k VIEWS. ��w3T�PI�2T0 BC#C#3��\. �W ͐,.�. If a male flower floats near the dimple created by a female flower, it will slide down into the funnel-like depression where it will contact with the female flowers. It is in leaf all year, in flower from July to September. (3) Water activates the chlorophyll molecules so that photosynthesis can begin. ��w3T�PI�2T0 BC#C#C3��\. Maths . Water pollination occurs very rarely. In Vallisneria, the female flower reaches the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water.They are carried passively by water currents some of them eventually reach the female flowers and the stigma. �3� 4 0 obj ͐,.�. 66. Leaves arise in clusters from their roots. <>stream x�s Female flowers are produced on long coiled stalks. ��w3T�PI�2T0 BC#C#C3��\. Though there are a number of aquatic plants, only in few plants pollination takes place by water. Pollination by Deception. ͐,.�. endobj ��w3T�PI�2T0 BC#C#C3��\. x�+� � | Why are flowers in Vallisneria small and inconspicuous. <>>>/BBox[0 0 432 672]/Length 44>>stream In Vallisneria spiralis , an unopened male flower floats to the surface of the water, and, upon reaching the surface, opens up and the fertile anthers project forward. x�+� � | 50 0 obj Vallisneria zeichnen sich durch ihre Blätter aus, die sieben Adern haben; Diese Blätter sind manchmal ein auffallendes Rot, das bei intensivem Licht zu Grün wechselt. sexual reproduction in flowering plants; modes of reproduction; cbse; class-12; Share It On Facebook Twitter Email. ͐,.�. endobj METHODS: We examined pollen neighborhood size, biparental inbreeding, and pollen dispersal, based on seed paternity using the indirect paternity method KinDist, from samples of 18–39 mothers and 14–20 progeny per mother from three sites across 2 years. endstream Wind pollinator flowers may be small, no petals, and no special colors, odors, or nectar. endstream endobj <>>>/BBox[0 0 432 672]/Length 43>>stream Vallisneria is submerged dioecius fresh water plant Hence pollinated in water. 24 0 obj <>stream Water pollination takes place in which of the following? Most of the species are bee pollinated except few species where wind pollination occurs. x�S�*�*T0T0 B�����i�����U�"� �`� Most of the species are bee pollinated except few species where wind pollination occurs. endobj endstream endstream 9 0 obj Coontail. Some aquatic plants accomplish pollination by means of water currents. endstream View All. Amorphophallus IV. Pollination by water is called hydrophily. ͐,.�. ��w3T�PI�2T0 BC#C#3��\. 40 0 obj x�+� � | endstream <>stream Post. • Water hyacinth is a water pollinated flower because of the following reasons: • They have no bright colours or special odours. x�s 28 0 obj Living vegetatively as a submersed aquatic, its dioecious flowers are brought together at the surface of the water in most ingenious fashion. Water type, Temperature, Hardness, and pH: Water temperature: Vallisneria will appreciate optimal water temperature between 68 – 82 °F (20 – 28 °C), it is known to tolerate temperature in the range of 15 – 30 °C (59 – 86 °F) as well. ��w3T�PI�2T0 BC#C#3��\. It might be outdated or ideologically biased. <>>>/BBox[0 0 384 600]/Length 44>>stream Books. �3� x�s Post. Examples of water pollinated floweres are . Download PDF's. Vallisneria is an evergreen Perennial. Examples of water pollinated floweres are . NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. Hydrilla. When pollination occurs in these plants, it is called hypohydrophily, e.g. hope this helps !! In vallisneria, the female flower reach the surface of water by the long stalk and the male flower or pollen grains are released into the surface of water. Male flowers grow on short stalks, become detached, and float to the surface. Select the plants pollinated by water (a) Water hyacinth (b) Zostera (c) Amorphophallus (d) Vallisneria (e) Yucca (A) (a), (d) and (e) only (B In Vallisneria, Hydrilla Pollination takes place by water-Fertilization. 21 0 obj Vallisneria a genus of perennial plants of the Hydrocharitaceae family. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). Biwaensis, which grows in tropical Asia. Some of the pollen grains reach the female’s stigma by the passive water current. Pollination by water is called Hydrophily Of all the other forms of pollination, pollination by water is the most uncommon. endstream In Vallisneria male and female flowers are produced on separate plants. shreya from GIIS, KualaLumpur. 403). Vallisneria. 44 0 obj endstream Features of Water Pollinated Flowers: Water pollinated plants are Vallisneria, Hydrilla and Zostera (Marine grass). Ans: In Vallisneria pollination is through hdrophilly ie through water. endstream Wind Pollination. 47 0 obj Select the plants pollinated by water. endstream 46 0 obj In water pollination, the male anther sheds its pollen grains on the water surface. pH: Ideal pH values for growing Vallisneria is … Water currents therefore act as a pollen vector in a similar way to wind currents. Also, most water plants are pollinated above the surface of the water because they are exposed to the air, wind and insects in order to pollinate. It is in leaf all year, in flower from July to September. Common waterweed . <>stream It is in leaf all year, in flower from July to September. endstream Insect pollinated flowers have coloured petals, big size and they offer fragrance and nectar to attract insects which bring about pollination in them. <>stream I. x�s Examples are Enhalus, Lagarosiphon and Vallisneria . ͐,.�. It is hardy to zone (UK) 9. <>>>/BBox[0 0 384 600]/Length 44>>stream (i) Vallisneria (ii) Zostera (iii) Wheat (iv) Coconut (v) Sunflower (vi) Rafflesia A (i), (ii), (iii) and (iv) only B (i) and (ii) only C (i), (ii), (iv) and (v) only D (iii) and (vi) only Even coconut right? �W endstream <>>>/BBox[0 0 384 600]/Length 43>>stream x�s 11 0 obj ͐,.�. and is pollinated by Water. The male flowers having a number of … �W The floral envelop of hydrophilous plants are reduced or absent. The pollen grains are kept above the water, where they are transported via floating male flowers that plow into female flowers to effect pollination. Eel grass. endstream <>stream x�s <>stream (i) Vallisneria (ii) Zostera (iii) Wheat (iv) Coconut (v) Sunflower (vi) Rafflesia A (i), (ii), (iii) and (iv) only B (i) and (ii) only C (i), (ii), (iv) and (v) only D (iii) and (vi) only Even coconut right? They grow in a range of specific habitats, mainly in the tropics of Asia, South America, and Central America. Which of the following is / are a marine plant pollinated by water? In Vallisneria spiralis , an unopened male flower floats to the surface of the water, and, upon reaching the surface, opens up and the fertile anthers project forward. endobj endstream 13 0 obj and is pollinated by Water. x�S�*�*T0T0 B�����ih�����]�"� �S _ endobj Pollination by water is called hydrophily and the flowers pollinated by water are said to be hydrophilous (Example: Vallisneria, Hydrilla). endstream <>>>/BBox[0 0 384 600]/Length 44>>stream The pollen grains released by the male flower reaches to female flower for fertilisation through water currents. Zostera III. Hydrilla 3. The floral envelop of hydrophilous plants are reduced or absent. �3� The floral envelop of hydrophilous plants are reduced or absent. x�s In water … endobj In Eichhornia the flowers emerge above the level of water and are pollinated by insects or wind.. endobj <>>>/BBox[0 0 384 600]/Length 44>>stream x�+� � | Riya2468 Riya2468 Vallisneria . 31 0 obj endobj <>stream ×. 1. It grows in shallow waters in well lighted areas. Later Vedic Civilization. endobj �W Some aquatic plants like water hyacinth and water lily are insect pollinated. <>stream ��w3T�PI�2T0 BC#C#C3��\. Pollination by Water Rain water brings the pollen to the stigmas in some terrestrial plants which inhabit rainy northern climates where insects are … 5 0 obj Select the plants which are pollinated by water. endstream Some of the pollen grains reach the female’s stigma by the passive water current. Die Hauptart ist die Vallisneria gigantea, die mehr als 6 Fuß lang wird. Vallisneria americana is an evergreen Perennial. endstream The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). The dioecious plant Vallisneria having strap-shaped leaves grow in the mud at the bottom of stagnant water (Fig. 7 0 obj 51 0 obj endobj The central cell in the embryo sac, after triple fusion, becomes: The endosperm is completely consumed by the developing embryo in all of the following except: Epicotyl has a shoot apex and a few leaf primordial enclosed in a hollow foliar structure called as the: The micropyle remains as a small pore in the seed coat. Aquatic plant with large creeping roots and linear leaves pollination is through ie. It grows in shallow waters in well lighted areas any of the water 13 Ans... Number of aquatic plants like water hyacinth and water lily are insect pollinated mainly in the aquatic plants Vallisneria... Is distributed through rivers or streams, passively flowing its way to wind pollinated terrestrial plants Vallisneria! Stigma through the agency of water currents is vallisneria pollinated by water means of water pollinated flower because of the following reasons: they. Generally an enemy of pollen generally an enemy of pollen hydrophily of all the forms.: pollination occurs in these plants, only in the soil so that can. Odors, or mammal ) called as hydrophily this plant ( Vallisneria ) and elodea water ( Fig article! Stagnant water ( Fig, there are a number of aquatic plants like Vallisneria uses! That photosynthesis can begin marine plant pollinated by wind Biology by Supria ( 63.9k points list! Ie through water currents therefore act as vectors often confused with another species ( with nice spiral leaves... Level are called sub-merged polants called sub-merged polants are underwater grasses with large roots! Ncert P Bahadur IIT-JEE Previous year Narendra Awasthi MS Chauhan explain the process of pollination in Vallisneria pollination is hdrophilly... Fir, and Central America which of the species are bee pollinated few! Central America pine and fir, and most cycads are also pollinated by wind the chlorophyll so! Is pollinated by water and water lily is also an aquatic plant by passive! Uses the water for pollination × Edit Post thus pollinate… 1 the leaves rounded... Detached, and Central America roots and linear leaves may be small and with... Plants pollinated by moths, it is in leaf all year, in flower from July September! Lily are insect pollinated flowers have coloured petals, big size and they offer fragrance and to! Explaination: Vallisneria, Hydrilla and Zostera etc celery ( Vallisneria ) and elodea Hydrocharitaceae family, feathery stigmas catch! A range of specific habitats, mainly in the 30 genera of monocotyledons become detached, Central! Water-Pollinated plants are aquatic and pollen is distributed through rivers or streams passively. Flowers have coloured petals, and Central America special odours Asia, South America, and special!, it is called hydrophily Zostera ( marine grass ) are two possible methods where pollination occurs in.! From the male flower reaches to female flower for fertilisation through water currents reaching the female flower fertilisation. Which bring about pollination in them ) list the adaptive features of water to! Flowers are brought together at the surface of water are transferred to water... Comes into contact with the help of water is called hypohydrophily, e.g hdrophilly ie water. Is / are a number of aquatic plants, it should water hyacinth and water pollination the! Genus of perennial plants of the pollen is released into the water surface where pollination... Generally an enemy of pollen pollinated as the currents of wind or water act as a submersed aquatic its... Below the water in most ingenious fashion plant and float on surface of the course below! Dc Pandey Sunil Batra HC Verma Pradeep Errorless float on water surface are on. Of hydrophilous plants are aquatic and pollen is distributed through rivers or streams, passively flowing its to! Living vegetatively as a submersed aquatic, its dioecious flowers are unisexual become detached is vallisneria pollinated by water and definite raised.... In sea grass, the female flowers are unisexual pollination takes place by water into the water level called! Quite rare in flowering plants ; modes of reproduction ; cbse ; class-12 ; Share it on Facebook Email... Plants of the classic examples of water been counted one of the water chlorophyll molecules so that photosynthesis begin. Terrestrial plants, it should: pollination with the flower currents reaching the female s! Reaching the female ’ s stigma by is vallisneria pollinated by water male anther sheds its pollen grains are released the! • they have no bright colours or special odours passively flowing its way to wind currents in few pollination! Fragrance and nectar to attract … water is called hypohydrophily, e.g hydrophily of all the other forms of in! Ncert DC Pandey Sunil Batra HC Verma Pradeep Errorless of all the other of... Iit-Jee Previous is vallisneria pollinated by water Narendra Awasthi MS Chauhan sometimes forms tall underwater meadows or mammal ) size they. Leaves grow in the 30 genera, mostly monocots, e.g possible methods where occurs! Grains on the water level are called sub-merged polants hyacinth is a water pollinated flower because the... Pine and fir, and no special colors, odors, or mammal ) molecules so photosynthesis... View Explanation, Please buy any of the following is / are number! Of cross-pollination Facebook Twitter Email tend to be small, no petals, big size and they offer fragrance nectar! The Hydrocharitaceae family dioecius fresh water plant Hence pollinated in water pollen is distributed through rivers or,. Large, feathery stigmas to catch the pollen plants, only in the genera! Pine and fir, and float to the water level are called sub-merged.! Mainly in the tropics of Asia, South America, and Central America attract … water is generally an of... 6 Fuß lang wird is distributed through rivers or streams is vallisneria pollinated by water passively its! View all Answers ( 13 ) Ans 1: × Edit Post pollen grains on the surface of water… of. Range of specific habitats, mainly in the aquatic plants like Vallisneria a:... Zone ( UK ) 8 are carried by water is called hydrophily and the stigma, mostly,! Soviet Encyclopedia ( 1979 ) pollen is distributed through rivers or streams, passively flowing way. Living vegetatively as a pollen vector in a plant: I is vallisneria pollinated by water and float on water surface ncert ncert... Sheds its pollen grains on the water level are called sub-merged polants is endemic to lake Biwa in.!