176 | HY DROCHARITACE2. [ Bryxa. 
2. B.oryzetorum, Hook. jf. in F. B. I. V, 661; Prain Beng. 
"Pl. 997. Diplosiphon oryzetorum, Dene. in Jacquem. Voy. Bot. 
167, t. 167. 
A submerged tufted annual. Leaves 4-6 in. long, with serrulate edges. 
Scape very short. Flowers s sexual. Stamens 3. Capsule 1-14 in. 
long by 4 in. wide. Seeds 4; in., sparsely tubercled ; tails none or 
very short. 
Bundelkhand (Edgeworth, No. 9002). DistR1.: Kashmir (Jacques 
mont), also on the Khasia Mountains. 
5. HYDROCHARIS, Linn.; FI. Brit. Ind. v, 662. 
Aquatic floating herbs. Leaves petioled, orbicular or reniform, 
entire. Flowers moncecious; males 2-3 in a peduncled 2-foliate 
spathe ; females solitary within a spathe. Sepals 3, herbaceous. 
Petals 3, white, membranous. Mate flowers. Stamens 6 or 9; 
staminodes 6 or 3; filaments forked, anther-cells basifixed. 
FEMALE flowers. Staminodes 6, in pairs. Ovary ovoid, 6-celled ; 
ovules many ; stigmas 6, linear, 2-fid. Fruit an ovoid or oblong 
fleshy berry, 6-celled. Seeds numerous ; testa pulpy, filled with 
spiral vessels ; embryo oveid.—Species 2 or 3, in Europe and Asia. 
HM. cellulosa, Buch.-Ham. in Wall. Cat. 5042; Prain Beng. 
Pl. 997. H. Morsus-Rane, F. B. I. V, 662 (in part); Royle Til. 
377. 
Prain in his Beng. Plants follows Buchanan-Hamilton in consider- 
ing this plant as specifically distinct from the European H. Morsus- 
Rane, to which it has been referred in the Fl. Brit. Ind. The reni- 
form leaves are much less deeply lobed at the base, and after flower- 
ing they become very much enlarged. The male flowers contain 12 
antheriferous stamens, 3 of which are sterile. Within the area of 
this flora specimens of this plant were collected by Buchanan-Hamil- 
ton in the Gorakhpur district, and by the present writer in the N. 
pooe district of Bahraich. ak plant appears to be common also in 
N. and Central Bengal. 
6. OTTELIA, Pers. ; F]. Brit. Ind. v, 662. 
Submerged or partially floating fresh-water herbs with fibrous 
roots. Leaves radical, crowded, the submerged narrow and shortly 
