164 
MONOECIA, POLYANDRIA. 
Tuscarora Rice. Wild Rice. Indian Rice. - 
From three to six feet high. On the shores of the Dela- 
ware and Schuylkill, and in ditches in the Neck, in profusion. 
Perennial. July, August. 
Seana 
ORDER VI. POLYANDRIA. 
355. MYRIOPHYLLUM. Gen. pl. 1440. (Wajades.) 
Calix 4-cleft. Petals 4, caducous. Stamina 
4, 6, or 8. Germs 4. Styles none. Stig- 
mas pubescent. Seeds 4, coated.—WVutt. 
ambiguum. 1, M. stem floating, dichotomous; leaves petiolate, 
pseudopinnate, the lowest capillary, emerging 
ones pectinate, uppermost nearly entire, sub- 
serrate; anthers partly oblong.—OBs. Stem dif- 
fusely dichotomous, floating, radicles often sim- 
ple. Leaves attenuated below so as to appear 
petiolated, pectinately pinnatifid; immersed 
leaves divided into long capillary segments, di- 
visions of the upper leaves short, setaceous and 
acute, from one. to five pair; uppermost leaves 
often oblong-linear and nearly entire. Flowers 
axulary, solitary, sessile, bibracteate, bractes 
dentifurm, acute. Germ quadrangular, angles 
terminating above in the segments of the calix. 
Calix 4-parted, divisions oblong-ovate, erect, 
concave, reddish. Stamina the length of the 
calix, sheathed by its segments, not exserted ; 
filaments minute; anthers somewhat oblong. 
Styles none. Stigmas 4, roundish and villous or 
pencillate. Fruit 4 coated, cylindric-oblong 
seeds, furnished with internal sutures, and at- 
tached to a minute setaceous axis.——JVuit. 
Myriophyllum-Ptilophyllum, ambiguum, Nutt. 
In springs, ponds and ditches, in Jersey ; common. 


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