NYMPH 2E ACE, V. 



79 



Each flower is borne on a long peduncle. 1 Only two species of this 

 genus are known : one, N. lutea? with yellow flowers, is American ; 

 the other, N. nucifera, 3 with white or pink flowers, is found in the 

 fresh waters of the tropical and subtropical regions of the Old 

 World. 



II. CABOMBA SERIES. 

 Cabomba* (figs. 82-86) has regular hermaphrodite flowers. The 



Cabomba aquatica. 



Fig. 84. 

 Diagram. 



Fig. 82. 

 Habit. 



Fig. 86. 

 Fruit (f). 



very small convex receptacle bears a corolla, a calyx, a whorl of 



1 The position of this peduncle is singular. I 

 have always seen it placed between the back of a 

 leaf (axillary to which is, on the other side, a bud) 

 and the upper surface of another appendage like a 

 bract or stipuliform appendage, to which the leaf 

 is superposed. 



2 Nelumbium Interna W., Spec, ii. 1259. — 

 DC, Prodr., i. 114, n. 2.— Toee., Gen. PI. Fl. 

 Amer. Bor., i. 97, t. 40, 41. — Walp., Rep., i. 

 105 ; Ann., ii. 24. — ? N. pentaphyllum W., hoc. 

 cit. — N. codophyllnm Rafin., Fl. Ludov., 22, n. 

 64. — N.jamaicense DC., Syst., ii. 47; Prodr., n. 5. 



3 GvEETN., hoc. cit. — Casp., in Ann. Mus. 

 Lugd.-Bat., ii. 242. — Nelumbium speciosum W., 

 Spec, ii. 1258.— Roxb., Fl. bid., 647.— DC, 

 Prodr., n. 1. — Hook. f. & Thoms., Fl. Ind., i. 

 248. — Walp., Rep., i. 105; Ann., ii. 24, n. 2; 

 iv. 151, n. 1. — N. asiaticum Rich., in Ann. 

 Mus., xvii. 249, t. 9. — N. indica PoiE., Diet., 

 iv. 453. — N~. caspicum.—Cyamus Nelumbo Sm., 

 Exot. Pot., i. 59, t. 31, 32. — C. mysticus Salisb., 

 Ann. Pot., ii. 75. 



4 Aubl., Guian., i. 321, t. 124.— J., Gen., 

 46. — L. C. Rich., in Ann. Mus., xvii. 230, t. 5, 



