Nymphai 



M .MI'll.l.At 1.1.. 





Oboes CXLVIII. \ YMIMI .]•'. \<'k r._ u • , 



Kympl '/, Ann. i DC r. 



r. I. 113. 11824); Wi./hV lltustratium, p. U; Uxxvil. 





Diagnosis. — Nymphai Bxogetu, with a 



Herbs, with peltate or cordate flesh] li av< s, arising from a prostrate trunk, 

 In quiet watera Flowers large, showy, often sweet-scented. & 

 rarely adherent ; petals nume- 



rous, imbricated, often p— «"g 



lually out of the last into 



mens; the former persistent, 



tin- latter deciduous, and in- 



dupon the disk, sometimes 



forming a monopetalous corolla. 



liens numerous, inserted 

 alm\.- the petals into the disk, 

 filaments petaloid ; anthi ra 

 idnate, bursting inwards by a 

 double longitudinal cleft 1 'i^k 

 large, fleshy, Burrounding the 

 ovary more or less. Ovary 

 polyspermous, many - celled, 

 with radiating Btigmas, alter- 

 with the dissepiments ; 

 ovules numerous, anatropal, 

 attached to the sid< - of the 

 dissepiments. Fruit many- 

 eelled, indehiscent. & eds \ erj 

 numerous, attached to Bpongy 

 dissepimi nts. Albumen farin- 

 as. Embryo small, on the 

 outside of the base of 1 1 1» - far- 

 inaceous albumen, inclosed in 

 n fleshy vitellus ; cotyledons 

 fleshy, concave; plumule ob- 

 lique. 

 The opinions of Botanists 



!i\ ided concerning the true 

 nature of the structure oi th 



itiful phuu-, and conse- 

 quently as to their proper sta- 

 tion in a Natural System. This 



been caused by Borne p«>- 

 aoharities in the embryo on the 

 oiw hand, and by the want oi 

 any resemblance in the inter- 



ondition of the Btem and that of Exogens. Richard roppi - 

 niotic sac, in which the embryo is inclosed, t" be a cotyledon, envelopi 

 phunule; and Inner the Order was referred to End M 



1 in the vicinity of Hydrocharads, Bui it is qow well known tl 

 cotyledon is a vitellus, analogous t" that of Peppers, G i 

 that what Richard and his followers denominated plumule, - 

 tin- Order is more generally placed in Exogens, or Dicotyledons, i 

 who once adhered to the opinion thai Waterlilies are m 

 related u< Hydrocharads, (see Hortut /.'• . i M 



Crowfoots . ,\ 188). Those who ai 



different opinions on this subject are referred to 

 volume of the Transactions of the Physical and Natural I 



I SlXXVII.— Nyiuphwa cosru I 



HI an embrj the great plumule lying in the i 



N ■ 



