168 SALIC ACEM. [ SALIX. 



vated in Afghanistan and in S. and Cent. Europe and in most sub- 

 tropical countries. It may possibly be wild in Persia and Cent. 

 Asia and in China. 



CIV. CERATOPHYLLACEJE. 



Slender, fragile, branched, submerged herbs. Leaves whorled, 

 dichotomously cleft into filiform minutely toothed lobes ; stipules 

 none. Floioers minute, monoecious, axillary, sessile. MALE- flowers 

 solitary. Perianth (or involucre) of 6-12 narrow subvalvate 2-fid 

 segments. Stamens 10-30 ; filaments very short ; anthers erect, 

 extrorse, dehiscing longitudinally, connective truncate or 2-toothed 

 at the apex. FEM. flowers : Perianth of the male. Ovary sessile, 

 ovoid, 1 -celled ; ovule solitary, pendulous, orthotropous ; style 

 subulate, stigmatic on one side. Fruit, a small coriaceous ovoid or 

 ellipsoid subcompressed nutlet, terminating in a long subulate 

 style with a spur projecting from the base on either side. Seed 

 pendulous ; testa membranous ; albumen none ; embryo straight ; 

 cotyledons thick ; radicle short, inferior ; plumule many-leaved. 

 A single genus, and one variable species distributed in all temperate 

 and tropical countries. 



CEBATOPHYLLUM, Linn. ; Fl. Brit. Ind. v, 639. Characters of the 

 family. 



C. demersum, Linn. Sp. PL 992 ; F. B. I. v, 639 ; Prain Beng. 

 PL 990 ; Cooke Fl. Bomb, ii, 663. C. verticillatum, Roxb. Fl. Ind. 

 Hi, 624. Vern. Jhangi (Beng.). 



Whole plant 8 in. -3 ft. long, forming a much-branched tangle of slender 

 branches and leaves which collapse in a tassel when taken out of the 

 water. Leaves 1 in. long ; segments spreading in water, variable in 

 thickness and amount of toothing. MALE flowers solitary, in sepa- 

 rate axils from the female but on the same plant. Anthers large, 

 white. FEM. flowers. Perianth (or involucre) as in the male, often 

 with an entire acute (not 2-fid) apex. 



Rohilkhand near Moradabad (T. Thomson) ; Kheri in N. Oudh and 

 Gorakhpur (Duthie) ; Saugor ( Jerdon), and probably overlooked in 

 many other localities. DISTEIB. : Bengal, ponds and ditches in all 

 the provinces, and no doubt generally distributed throughout the 

 greater part of India. 



: PRINTED BY SFPDT. QOVT. PRINTING, INDIA, 8 4 HASTINGS STRBET, 



