Ottelia.} BURMANNIACE. 997 
2013. Buyxa EoHINoOsPERMA Hook. f.; F. B. I. v. 661. 
E. Bengal; Tippera 
A submerged, tufted, aquatic annual. 
2014. Buyxa onyzetorum Hook. f.; F.B. I. v. 661. 
Tirhut ; Behar; Chota Nagpur. 
A submerged, tufted annual, in rice swamps. 
889. Hydrocharis Linn. 
Aquatic, floating herbs; /eaves orbicular or reniform, entire. 
Flowers monccious; males 2-3 in a peduncled, 2-foliate spathe ; 
females solitary in the spathe. Sepals 8, herbaceous. Petals 8, 
white, membranous. ¢ Stamens 6 or 9, with 6 or 3 staminodes ; 
filaments forked; anther-cells basifixed. ¢ Staminodes 6, paired. 
Carpels connate in a 6-celled ovary ; ovules numerous ; stigmas 6, 
linear, 2-fid. Fruit an ovoid or oblong, fleshy berry, 6-locular, 
Seeds numerous; testa pulpy, filled with spiral vessels; embryo 
ovoid. 
2015. Hyprocnaris cettutosa Buch.-Ham. H. Morsus-Rane 
F. B. I. v. 662 partly. 
Tirhut; N. Bengal; C. Bengal. 
A floating herb. 
890. Ottelia Pers. 
Submerged or partially floating herbs; leaves radical, crowded, 
the submerged narrow, the floating long-petioled, ovate-lanceo- 
late, oblong or cordate. Flowers solitary, hermaphrodite, sessile 
within a tubular, long-peduncled spathe. Sepals 3, linear o 
oblong. Petals 3, larger, obovate or orbicular, with fleshy basal 
appendages. Stamens 6-15, 2-5-seriate; anthers erect. Carpels 
connate in an oblong, beaked, almost 6-celled ovary ; ovules many ; 
placentas diffuse ; styles 6, linear, 2-fid. Fruit oblong, enclosed 
in the spathe, 3-6-winged. Seeds many, oblong; testa pulpy. 
2016. OrreLra ALIsMoIDES Pers.; F. B. I. v. 662. Damasoniwm 
indicum F, I. ii. 216. - 
In all the provinces. 
A submerged or partly floating aquatie. Beng. Parmi- 
kalla, 
Order CXXVI. BURMANNIACEZ. 
Erect herbs, annual or with a perennial rootstock, simple or 
“paringly branched. Leaves linear, chiefly radical or reduced to _ 
