CYPERACEiE OF THE PHILIPPINES. 
81 
Yar. /3 Nilagiricus Clarke in Hook f. FI. Brit. Ind. 6: 592. 
Spikelets narrower, often chestnut-colored or black. 
Hem si. in Journ. Linn. Soc. 36 (1903) 204. Cyperus Nilagiricus Steud. ! 
Gyp. 2. C. Junghuhnii Miq. FI. Nederl, Ind. 3 : 260. 
Luzon, Benguet, (791 Loher) ; (6483 Elmer) ; Lepanto, (4630 Merrill). 
Warmer parts of the Old World, especially in the mountains; a common plant. 
Frequent in Africa, Japan, India and China. 
PHILIPPINES SPECIES OE CYPERUS WITH 2-EID STYLES; NOT IN THE KEW 
HERBARIUM. 
Cyperus albus Presl Bel. Haenk. 1 : 174. “Stylus bifidus,” “Nux oblonga,” 
“Spieulae dense fasciculatae.” 
Luzon, fide Presl. 
Cyperus Luzonensis Presl Bel. Haenk. 1 : 1'74. 
•“Stylus 2-fidus,” “Nux elliptica.” 
Luzon, fide Presl. 
An example of Llanos, marked “G. luzonensis Presl,” is not Presl’s plant, as 
the styles are all 3-fid; it is Mariscus micro cephalus Presl below. 
3. JUNCELLUS C. B. Clarke. 
1. Juncellus pygmaeus C. B. Clarke in Hook. f. FI. Brit. Ind. 6 (1893) 596. 
Style 2-fid. 
Hemsl. in Journ. Linn. Soc. 36 (1903) 207. Cyperus pygmaeus Bottb. Descr. 
et Icon. (1773) 20. t. _4. f. l h 5; Miq. FI. Nederl. Ind. 3: 261. 
Luzon, (769 Loher). 
Old World, from Africa to Korea and north Australia; a common weed. 
In the genus Cyperus, we have in many species the primordial nut equally 
trigonous; in the majority of species the nut is more or less flattened on the 
anterior face (the hack, of authors) so that the nut is approximately plano- 
convex in section, the style remaining always 3-fid. In Juncellus the “dorsal” 
flattening appears to have been carried so far that the style is 2-fid; in two 
species of Juncellus, however, the style is 3-fid or 2-fid indifferently. There is 
thus no difference in structure, and no definite line to be drawn between Cyperus 
and Juncellus. The only reason for retaining Juncellus as a genus is con- 
venience, even after it has been taken out, Cyperus being inconveniently large. 
4. CYPERUS Linn. 
Style 3-fid. Spikelets persistent. Glumes deciduous. 
Sect. 1. Pycnostache^e. Spikelets digitate or clustered; not spicate. 
1. Cyperus tenellus Linn. f. Suppl, (1781) 103. 
Stem 5 to 15 cm. long; with one lateral cluster of 1 to 4 spikelets; 
glumes obtuse. 
Benth. ! FI. Austr. 7: 265 (syn. dub. C. modestulo Steud. excl.). 
Luzon, Benguet, Pauai, (4740 Merrill), in a cold swamp at about 2,200 m. 
Cape of Good Hope; in Australia rare. No. 4740 Merrill is a very small 
plant; it may possibly represent a new species near C. tenellus. 
