nymi'iij:a("1-:.k. 73 



rtnd imbricated; carpels either apocarpous or syiicarpoiis ; ovules aiiatnjpous 

 and when more than one not borne on tlie ventral suture ; embryo hinall and 

 enclosed in a close sac at the base of the lieshy albumen, or the latter waniinj,' in 

 the anomalous Nelumbium. Rootstocks apparently endogenous rather than 

 exogenous in structure. The Wateu-liliks are of three suborders, of \vhi«h 

 the first is most simple. 



SUBORDKK L CABOMBEiE. Sepals and petals each W ((.(•casioiialiy t) aii.l p.r- 

 sistent : stamens :} to IS, and carpels 2 to 18, ail fr.M- and dislinet; no evidi-nt 

 disk. Carpels in fruit iiidebiscent, somewhat nut-like, L'-ovuli-d and I'-seeded on 

 the sides or on the ilorsal suture, or when ;j-seeded one usually on or near the 

 ventral suture. Flowers small. 



1. CABOMBA. Petals I.i-aiiiiciilate at ba-se aliove a very short claw. Stamens ;us nianv sw 

 petals and sojials, ami njiposite them: anthers short, adnate, extrorsc. Caritels 2 <i"r :j. 

 Stiijma small ami terminal on a short style, depressed or globular. Submi-r.scd K-iive.s 

 eapillary-multifid and opposite or verticellate. 



2. BRASENIA. Petals narrow and plane. Stamens .3 or 4 times as manv : anthers linear- 

 olilong, innate. Carpels 4 to 18, generally capitate-crowded. Stigma sessile. and large, 

 oblong, unilateral. Leaves alternate and entire. 



SuBORDKU ir. XELUMIiOXE.E. Sepals and petals indefinitely num.-ruus and i.a.s.s- 

 iiig- the one into the otlier, regidarly indn-icated, liypogynoiis, inner succe.ssively 

 larger and more colored, promptly deciduous. Stamens indefiiutely numerou.s, 

 hypogynous: anthers linear, slightly extrorse, the connective pivdonged into an 

 incurved appendage. Carpels several (15 to 8(») imm'ersed sei)arately in an 

 obconical enlargement of the receptacle; ovary globular, with very short style and 

 depressed umbilicate ternnual stigma; ovule solitary (rarely a pair) susi*>onded. 

 Fruit an acorn-like nut. Seed exalbuminous, filled by the highly <leveloited 

 embryo; cotyledons thick and farinaceous-fieshy, uinted by the oksolete caulicle, 

 enclosing a plumule of two or three developing leaves, from the first node of 

 which in germination proceed the earliest roots. 



3. NELUMBO. The only genus. 



Suborder TIT. NYMPII^EACE.E propkr. Sepals 4 to G. Petals numerous, some- 

 times reduced to or resembling stanunodes or innermost passing gradually into 

 stamens, mostly marcescent or decaying away. Stamens very numerous: anthers 

 adnate, introrse. Carpels .several, more or le.ss uiuted into .several-celled coini)ound 

 ovary, which bears indefinitely numerous ovules upon the ovarian walls. Stigma-s 

 sessile and radiate. Fruit coriaceou.s-baccate, many-seeded. Seed and embryo as 

 in character of the order. Acaulescent from .stout rootstocks, commonly slightly 

 lactescent. Stipules intrafoliaceous and united, sometimes adnate to ba.se t>f 

 petiole. 



4. NYMPH^A. Sepals and jietiils 4 nienuis in nnmemns ranks, an-l stamens inrlefinitely 

 numerous passing into each oilier successively. Scj)als 4, piano, hyi>ogynous, herl>acp<iu.« 

 ou the outer and somewhat petaloid on the inner face. Petals ])lano. those of the oiUcnixwt 

 row often greenish outside, all olilong or lanceolate, imbricated over and their Iijum's aiin.it<) 

 to the surface of the 7-.'?.')-celled ovary; innermost staminodos or imperfect stamens with 

 petaloid filaments. True stamens with narrow filaments and linear-oblong anthers. insiTto<l 

 around the broad summit of the ovary. This concave ami tunbonate, lincate with ju* in:iny 

 radiate stigmatic lines as there are carpels, the tips of the latter jiroducod into a» main- 

 incurved short processes. Surface of the spongy-baccate fruit bearing the ba.«cs of decaying 

 sejials or their scars. Seeds enclo.sed in cellular nu-mbranaceous .-irillus. 



6. NUPHAR. Sepals .5 to 12, concave, roundish, mostly yellow and pofiih>id except gn-onixh 

 base or outside, coriaceous, persistent. Petals 10 to 20, hyiKjgyuous, small and thick, the 



