CyPERACE^ OF THE PHILIPPINES. 83 
7. Cyperus diffusus Vahl Enura. 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. 
JVliq. Fl. Nederl. Ind. 3: 264; Hook. f. Fl. Brit. Ind. 6: C03; Henisl. in Journ. 
Linn. Soe. 36 (1903) 211; Merrill in Philip. Journ. Sci. 1 (1906) Suppl. 1: 30. 
Cyperus elcgans Swartz Obs. Bot. 30; Ivuiilh, Euuui. 2: 28. C. longifoHu^ 
Decaisne in Nouv. Ann. Mus. Paris 3 (1834) 359; Miq. Fl. Nederl. Tnd. 3: 205. 
C. moestus Kunth Enum. 2: 31; Miq. Fl. Ind. Hat. 3: 265. C, scirpoides Proal, 
Rel. Haenk. 1: 178, non Vahl. C. Sorzogonmsia PresI I. c. 174. 
Philippines, {Micholiiss) . Luzon, {Wichura) -, (403, 405 Topping). 
Tropical and subtropical, southeast Asia and America, a sylvan (not rice 
field) species. 
8. Cyperus pubesquama Stcud. I in Zoll. Verz. Ind. Arcliip. heft 2 (1854) 62. 
Glumes mostly puberuloiis^ tlieir points (iu fruit) closely, rigidly 
appressed to the spikclet; otherwise as in C, diffusus Vahl. 
Miq. Fl. Nederl. Ind. 3: 2G0; Hook. f. Fl. Brit. hid. 6: 604. Vypcrua Lago- 
rensis Steud. ! Cyp. 30; Miq. Fl. Nederl. Ind. 3: 275. C. Galaoaryensis iSteud. 
I Cyp. 34; Miq. 1. c. 275. C. diffvstis Kunth, Enmn. 2: 30; Vidal ! Rev. PI. 
Vase. Filip. 283; Phaner. Cuming. Philip. 155, non Valil. 
Philippines, (445, 533, 534 Cuming), Luzo-V (5054 Merrill). Mindanao, 
{2S0 DeV ore et Hoover) . 
Frequent in India and through IMalaya to New Guinea. 
This species is closely allied tOj as well as very like, C. diffusus Vahl, but is 
specifically distinguishable. 
(8a., Cyperus Bakcanus Miq. Fl. Nederl. Ind. Snppl. (1860) 260, 599; C. B. 
Clarke in Journ. Linn. Soc. 34 (1898) 27; Merrill in Philip. Jonrii. 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 T have no specimen 
before me. Merrill places a ? after his determination.) 
Sect, 2. CnORiSTAcnE^E, Spikelets spicate. 
9. Cyperus Iria Linn. Sp. V\. ed, 1, 45; ed. 2, 67, tab, Rheede citat. excl. 
4 
Medium large annual, umbel often compound; glumes obovate, ulti- 
mately hardly imbricate. 
Miq. Fl. Nederl. Ind. 3: 269; Hook, f. Fl. Brit. Ind. 6: 000; Vidal, Rev. PI. 
Vase. Filip. 283; Phaner. Cuming. Philip, 155; Hemsl. in Journ. Linn. Soc. 36 
(1903) 213. Cyperus Nuttalii Llanos I Fragm. Pi. Filip. 14. 
Philippines, {Llanos); (563 Cuming); (3982 Vidal); (874 Jayor). Luzon, 
(731, 732 io/Tcr) ; {200 Chamisso) ; {2307, 3051 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. y3 paniciformls Clarke in Hook. f. Fl. 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. 
