CXII. CYPERACE.E 
561 
3. Fimbristylis dichotoma, Vahl ; FI. Br. Ind. vi. 635. Annual ; 
stems tufted, 2-10 in., grooved. Leaves nearly as long as the 
stem, pubescent. Umbels compound, often 2-4 in. diam. Spikelets 
many, in., oblong, angular, red-brown. Glumes acute, keel 
prominent. Style hairy nearly to the base, 2-branched. Nut half 
the length of the glume, flattened, each face longitudinally striped. 
Common in rice-fields, throughout India, ascending to 4000 ft. — Warm 
regions of the Old World. 
4. Fimbristylis diphylla, Vahl ; FI. Br. Ind. vi. 636. Annual ; 
stems tufted, 6-24 in., grooved, angled at the top. Leaves about 
one third the length of the stem, usually glabrous in the Himalayan 
form. Umbels compound, 1-8 in. diam., but sometimes reduced 
to a head of a few spikelets or even one. Spikelets usually many, 
in., ovoid to nearly cylindric, brown. Glumes acute. Style 
hairy, 2-branched. Nut one third the length of the glume, flattened, 
each face longitudinally striped. 
Throughout India, ascending to 6000 ft. — All warm regions. 
5. Fimbristylis rigidula, Nees ; FI. Br. Ind. vi. 640. Perennial ; 
rhizome horizontal, short, woody; stems 4-16 in., base thickened, 
closely arranged in a single row. Leaves half the length of the 
stem or less, glabrous or pubescent. Umbel compound, 1-5 in. 
diam. Spikelets many, solitary or in pairs, in., almost 
globose, brown. Glumes obtuse. Style hairy, at least on the 
upper half, 2-branched. Nut one third the length of the glume, 
flattened, faces not striped. 
Simla. — N. India, ascending to 6000 ft. — China. 
6. Fimbristylis Pierotii, Miq . ; FI. Br. Ind. vi. 642. Glabrous ; 
stolons short, hardening into a woody rhizome ; stems tufted, 6-12 
in., slender. Leaves about half the length of the stem. Umbels 
simple or compound, 1-3 in. diam. Spikelets 5-20, broadly 
lanceolate,^- in., chestnut-brown. Glumes acute. Style glabrous ; 
branches 3, minutely hairy. Nut one third the length of the glume, 
3-sided, smooth or obscurely tuberculate. (Pig- 183.) 
Simla. — W. Himalaya, from 4000 up to 9000 ft.— Japan. 
7. Fimbristylis quinquangularis, Kunth ; FI. Br. Ind. vi. 644. 
Annual, glabrous, very variable in size ; stems tufted, 4-24 in., base 
flattened, top 4-5-angled. Leaves usually half the length of the 
stem, very variable in development, sometimes none. Umbels some- 
times compound to the fourth degree, 4-8 in. diam. or much smaller. 
Spikelets usually numerous, rarely few, 1- in., linear-lanceolate, 
pale brown. Glumes pointed. Style slightly hairy near the top, 
3-branched. Nut half the length of the glume, 3-sided, reticulate 
or obscurely tuberculate. 
Throughout India, ascending to 6000 ft. — Tropical Asia. — Australia. 
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