OYPERACEiE OF THE PHILIPPINES. 
83 
7. Cyperus diffusus Vahl Enum. 2 (1806) 321. 
Large, leaves and bracts 1 to 2 cm. broad; umbel very compound, of 
heads of few spikelets (solitary pedicelled spikelets often added) ; points 
of glumes spreading in fruit. 
Miq. FI. Nederl. Ind. 3: 264; Hook. f. FI. Brit. Ind. 6: 603; Hemsl. in Journ. 
Linn. Soe. 36 (1903) 211; Merrill in Philip. Journ. Sci. 1 (1906) Suppl. 1: 30. 
Cyperus elegans Swartz Obs. Bot. 30 ; Kunth, Enum. 2 : 28. C. longifolius 
Deeaisne in Nouv. Ann. Mus. Paris 3 (1834) 359; Miq. FI. Nederl. Ind. 3: 265. 
C. uioestus Kunth Enum. 2: 31; Miq. FI. Ind. Bat. 3: 265. C. seirpoides Presl, 
Rel. Haenk. 1: 178, non Vahl. C. Sorzogonensis Presl 1. c. 174. 
Philippines, (Micholitz) . Luzon, (Wichura) • (463, 465 Topping). 
Tropical and subtropical, southeast Asia and America, a sylvan (not rice 
Held) species. 
8. Cyperus pubesquama Steud. ! in Zoll. Verz. Ind. Arehip. heft 2 (1854) 62. 
Glumes mostly puberulous, their points (in fruit) closely, rigidly 
appressed to the spikelet; otherwise as in C. diffusus Vahl. 
Miq. FI. Nederl. Ind. 3: 266; Hook. f. FI. Brit. Ind. 6: 604. Cyperus Lago- 
rensis Steud. ! Cyp. 36; Miq. FI. Nederl. Ind. 3: 275. C. Calaoaryensis Steud. 
! Cyp. 34; Miq. 1. c. 275. C. diffusus Kunth, Enum. 2: 30; Vidal ! Rev. PI. 
Vase. Filip. 283; Phaner. Cuming. Philip. 155, non Vahl. 
Philippines, (445, 533, 534 Cuming). Luzon (5054 Merrill). Mindanao, 
(280 DeVore et Hoover) . 
Frequent in India and through Malaya to New Guinea. 
This species is closely allied to, as well as very like, C. diffusus Vahl, but is 
specifically distinguishable. 
(8a., Cyperus Bancanus Miq. FI. Nederl. Ind. Suppl. (1860) 260, 599; C. B. 
Clarke in Journ. Linn. Soc. 34 (1898) 27; Merrill in Philip. Journ. Sci. 1 (1906) 
Suppl. 1 : 30. 
Luzon, (2581 Meyer) ; (291 Copeland), fide Merrill. 
Malayan Peninsula and Archipelago, Tonkin; frequent. 
This plant is likely to occur in the Philippines, though I have no specimen 
before me. Merrill places a ? after his determination.) 
Sect. 2. Choristacheas. Spikelets spicate. 
9. Cyperus Iria Linn. Sp. PI. ed. 1, 45; ed. 2, 67, tab. Rlieede citat. excl. 
Medium large annual, umbel often compound; glumes obovate, ulti- 
mately hardly imbricate. 
Miq. FI. Nederl. Ind. 3: 269; Hook. f. FI. Brit. Ind. 6: 606; Vidal, Rev. PI. 
Vase. Filip. 283; Phaner. Cuming. Philip. 155; Hemsl. in Journ. Linn. Soe. 36 
(1903) 213. Cyperus Nuttalii Llanos ! Fragm. PI. Filip. 14. 
Philippines, (Llanos)-, (563 Cuming) ; (3982 Vidal) ; (874 Jagor). Luzon, 
(731, 732 Lolier) ; (200 Chamisso) ; (2307, 3651 Merrill) ; (5706 Elmer). Min- 
danao, (1998 Wichura) ; (602 Copeland) . 
A weed in rice fields of the Old World (examples from the Santee Canal in 
Florida were .introduced from the Old World, fide Chapman). 
Var. jS paniciformis Clarke in Hook. f. FI. Brit. Ind. 6: 607. 
Spikelets 2 to 4-nutted ; racemes nearly linear. 
Cyperus paniciformis Franch. et Savat. PI. Japon. 2: 103, 537. 
* Luzon, (1867 Wichura). 
India, China, Japan and Malaya. 
