Cyperus."] CLXXII. CYPERACE^;. (C. B. Clarke.) 605 



heads (otherwise as C. diffusus). Scirpus trialatus, BoecJc. in Linnsea, 

 xxxvi. 721. Isolepis, Wall. Gat. 3473. 



From PEGTT to PENANQ- and MALACCA, frequent, Heifer (Kew Distrib. 6164), 

 &c. DISTRIB. S. China. 



Stems 12-20 in. Umbels 3-4 in. in diam. . Spikelets usually about 6-fld. 



26. C. radians, Nees & Meyen ex Nees in Linnssa, ix. 285 (name) 

 and in Nov. Act. Nat. Cur. xix. Suppl. 1, 63 ; umbel simple or compound 

 rays longer than stem, spikelets 1-30 clustered compressed or nearly 

 terete, glumes br\>ad striate mucronate, nut broad ovoid | length of glume. 

 Benth. Fl. HongJc. 386; BoecJc. in Linnsea, xxxv. 515; C. B. Clarke in 

 Journ. -Linn. Soc. xxi. 100. C. radicans, Kuntli Enum. ii. 95. C. Griffithii, 

 Steud. Syn. Cyp. 316 ; C. B. Clarice, I c. 101. C. macropus, Miq. Fl. Ind. 

 Bat. Suppl. 260, 599 (not of Boeck.). C. sinensis, Debeaux in Act. Linn. 

 Soc. Bordeaux, xxxi. 14, t. 2, and xxxviii. 30. Cyperus, Wall. Cat. 3371, 

 B. (partly). . Eynchospora, Wall. Cat. 3427. 



MALAY PENINSULA. TENASSERIM, Heifer (Kew Distrib. 6209); SINGAPORE, 

 Wallich. DISTRIB. China, Malaya. 



Glabrous. RJiizome very short ; stolons 0. Stems frequently less than 1 in. Leaves 

 much exceeding stem, in. broad, rigid, not 3 -nerved, often becoming brown. Rays 

 of umbel always remarkably long (13 in. in Maingay, n. 1721). Spikes f-f in. 

 in diam., sometimes globose, dense with 10-30 spikelets, sometimes in clusters 

 of 2-5 spikelets, or occasionally spikelets mostly solitary pedicelled. Spikelets % by 

 ^ in., 6-12-fld. ; rhachilla not winged. Glumes closely imbricate, green usually 

 marked with red, muticous. 'Nut and style much as in C. diffusus. Ridley has 

 proved C. GriffitMi to be only a form of C. radians. This unmistakable species is 

 not very closely allied to C. diffusus ; but, unless a section is made for it alone, it is 

 not clear where it can be better arranged than at the tail of the Diffusi. 



Subgen. III. CHORISTACHYS. Infl. umbellate, spikes often more or less 

 corymbed; spikelets (sometimes very shortly) spicate. Style-branches 

 linear. (Sp. 27-61.) [N.B. There is 'no line of separation between this 

 subgenus and II. Pycnostachys.'] 



Series A. Ehachilla of spikelets not much winged. Leaves and bracts 

 long (except in C. malaccensis). (Sp. 27-39.) 



Sect. 1. Compressi. Annuals, or sometimes flowering the second year. 

 (Sp. 27-31.) 



27. C. compressus* Linn. Sp. PI. 68 ; green, leaves and bracts long, 

 umbel simple, spikes of 3-10 spikelets very shortly spicate, glumes boat- 

 shaped keel acute excurrent, rhachilla of spikelets not winged, nut obovoid 

 obtuse black acutely triquetrous with concave faces. Burm. Fl. Ind. 21 ; 

 Roxb. Fl. Ind. i. 194 ; Nees in Wight Contrib. 76 ; Kuntli Enum. ii. 23 ; 

 Miq. Fl.Ind. Bat. iii. 263 and Suppl. 260, 599; Dalz. & Gibs. Bomb. Fl 

 282 ; Thw. Enum. 342 ; King in E. T. Atkinson Gaz. x. 320 ; BoecJc. in 

 Linnsea, xxxv. 517 ; C. B. Clarice in Journ. Linn. &oe. xx. 284 and xxi. 

 97; Boiss. Fl. Orient, v. 372 (not of Jacq.). C. pectiniformis, Nees 

 in Wight Contrib. 77 (excl. syn. Roxb.). C. Meyenii, Nees et Meyen in 

 Nov. Act. Nat. Cur. xix. Suppl. i. 57. C. viridis, Herb. Roxb. ; Wall. Cat. 

 3308. 



Throughout INDIA ; from the Punjab and Assam to Ceylon and Singapore. 

 DISTRIB. All warm countries (except Australia). 



