Nymphaeaceae


 
Victoria amazonica (Poepp.) J.C. Sowerby  
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PLANT TAXONOMY 2E By SHARMA (2011)- Details
 
Taxonomy Of Angiosperms By Pandey & Misra (2008)- Details
 
FAMILY OF THE WEEK : NYMPHACEAE : 3 posts by 2 authors. Attachments (4).
FAMILY OF THE WEEK : NYMPHACEAE
The family is represented by 8 genera and about 90 species most abundant in tropics. In India there are 4 genera and 7 species occurring throughout India.
Vegetative characters :
They are perennial aquatic herbs with a creeping or erect sympodial rhizome. There is a scattered arrangement of vascular bundles.
The leaves are usually large, simple and long petioled, arising from the root stalk or from the slender floating stem (Cabomba). They are usually floating or sometimes emerged as in Nelumbo. often peltate.
Inflorescence and flowers :
The flowers are axillary, solitary, long peduncled, and float on the surface or raised much above the water(Nelumbo) or partially submerged. The flowers are large showy, often sweet scented, bisexual, actinomorphic, hypogynous or more or less epigynous and acyclic to cyclic.
The calyx and corolla are poorly differentiated. The calyx is composed of 3-5 sepals. The sepals are distinct and green or coloured and petioled.
The corolla is polypetalous with three to indefinite and variously coloured or white showy petals. In Nymphea numerous spirally arranged petals gradually pass into stamens.
The androecium is composed of three to indefinite distinct stamens. The gynoecium is of two to three to numeruos carpels. In Nelumboideae there are a large number of carpels which are embedded separately in round pits which are on the flat upper surface of of a swollen spongy and obconical receptacle.
Fruits and seeds :
In Cabomboideae the fruit is a closed indehiscent follicle with one to three pendulous seeds. In Nelumboideae the fruit is indehiscent one seeded nutlet. The seeds are with a large embryo and with no endo ro perisperm. In Nymphaeoideae the fruit is a spongy berry with numerous seeds and it dehisces by swelling of mucilage. The seeds have small embryo and endosperm and abundant perisperm.
Pollination and seed dispersal :
Bright and showy fragrant flowers favour pollination by insect, flies and small beetles. Seed dispersal is mostly by water. Some species of Nuphar, Brasenia, and Cabomba are dispersed by ducks which eat the pulp of these fruits greedily.
Examples :
Nelumbo nucifera (Lotus) Kamal Nymphaea nauchali (Indian red water Lily) Nymphaea stellate (Indian blue water Lily) Nymphaea alba (European white water Lily) Victoria amazonica (Royal water Lily)

‎Nymphaeaceae- Euryale, Nuphar, Nymphaea & Victoria: 3 posts by 2 authors.

I have updated eFI (efloraofindia) page on Euryale, Nuphar, Nymphaea & Victoria (Pl. click).

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome.


I have compiled and added the list of species of Nymphaea, Euryale and Victoria.
Not able to add the list for Nuphar in lack of literature.
 
Species, genera & family pages of‎‎‎ ‎‎Nymphaeaceae are now with images. I request you to pl. go through & point out mistakes, if any. I hope this will aid in identifications in future. If anybody can send images of other species of this family (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.


 
 
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