Sagittaria.] 
CLII. ALISMACEjE. 
363 
Species about 15, whole 
oblong receptacle, flat crested or winged, 
world. 
(1) S. guayanensis Humb. Bonpl. Kunth. Nov. Gen. and Sp. 
i. 250; Hook. fit. F.B.I. vi. 561; Ridl. Mat. ii. 127. 
Leaves orbicular or 
ovate-cordate obtuse 
floating, 1*5 to 2 in. long, 
lobes broad; petioles 6 
to 8 in. long. Scapes 
3 to 8 in. long ; branches 
few, short. Bracts ovate, 
•25 in. long. Pedicels 
•5 in. long. Flowers -25 
to -6 in. across. Sepals 
oblong -lanceolate. 
Petals cuneate. Sta¬ 
mens 9 to 12. Carpels 
in a globose head, -5 in. 
through, flat orbicular, 
dentate not beaked. 
Hab. Rice-fields, Pahang, 
Pulau Tawar. Malacca, 
Merlimau (Derry). Pro¬ 
vince Wellesley, Perma- 
tang Bertam. Penang, 
Pulau Betong (Curtis). 
Dislrib. Indo-Malaya, 
China, Australia. Native 
n antes : Keladi Ayer; 
K'lipoh Padang. 
S. sagittifolia, L., a 
Chinese form, is sometimes 
cultivated to feed pigs. I 
have never seen it in flower. 
It has a tuberous rhizome 
and sagittate leaves with 
tall erect petioles. 
Fig. 206. —Ranalisma rostrata. 
Order CLIII. TRIURIDEiE. 
Very small slender saprophytic herbs. Stem capillary, simple 
or branched from a creeping rhizome. Leaves scale-like ovate, 
scattered. Flowers minute unisexual, in a terminal raceme. 
Petals and sepals similar. Male flowers with 2 to 6 stamens with 
short or no filaments. Pistillodes 3 or more or o. Females with 
0 to 6 staminodes and numerous crowded carpels in a head, i-ovuled. 
