268* CLVi. CYPERACE^ (clarke). [KylUnga. 



Nut not enclosed in a utricle. 



Nut surrounded at the base by numerous hairs or 



bristles . . , 26. Eriospoea. 



Nut without hairs at the base. 



Nut-bearing spikelet containing male flowers or 



rudiments . . . . . . .24. SCLERIA. 



Nut-bearing spikelet female, the flower pseudo- 

 terminal 25. DiPLACRUM. 



Nut enclosed in a utricle, i.e., the 2 propbylla (brac- 



teoles) connate into a bottle-sliaped body . . 27. Carex. 



1. KYi:iLI2«'GA, Rottb. partly ; Benth. et Hook. f. Gen. 

 Pi. iii. 1U45. 



Spikes ovoid or cylindric, dense, with many small compressed 

 spikelets. Spikelets of 4-7 distichous glumes, 1-6-flowered ; lowest 

 (or several lowest) flower 2-sexual, perfecting a nut ; uppermost flower 

 sterile or uppermost glume empty ; 2 lowest glumes smaller, empty ; 

 rhachilla in fruit falling oflf by disarticulation from a cushion below the 

 lowest fertile flower. Stamens 1-3, anterior ; anthers narrow oblong, 

 not crested. Style not bulbous at the base ; branches 2, linear, in a 

 plane passing through the rhachilla. Nut oblong or ellipsoid, com- 

 pressed laterally, smooth. — Glabrous. Leaves all close to the base of 

 the nodeless stem, gj^ipen and long (except in K. pungeits and K. peruv- 

 iana). Inflorescence a head of 3-1 (very rarely 4-5) absolutely sessile 

 spikes, subtended by 3-6 leaf -like bracts. When the spikes are 3, the 

 middle one is often much longer than the others. 



Species 45, in all hot and temperate regions except Europe. A specially African 

 genus. 



='=Thkyocephaltjm:. — Keel of nut-bearing glume winged 

 in fruit ; spikelets perfecting 1 (rarely 2) nut. 

 Rhizome less than ^ in. long, usually 0. 



Spikelets 5 in. long, in a head \-^ in. in diam. 

 Wing of nut-bearing glume very strong, with 



conic teeth . . . . . . \. K. squamulata. 



Wing of nut-bearing glume narrow, ciliate ' . 2,. K. controversa. 

 Spikelets \-\ in. long, in a head \ in. in diam. 

 Head even in fruit very white; spikelets 



spreading . . . . . . 3. X. alha. 



Head pale dusky-cinnamon-coloured ; spikelets 



erect . . . . . . . ^. K. nigritana. 



Rhizome creeping, 3-10 in. long . . . . 5. A", monocephala. 



'•"■=EuKYLLiNGA. — Keel of nut-bearing glume not winged; 

 spikelets perfecting 1 (rarely 2) nut. 

 Rhizome creeping, often flexuose ; bracts rarely 

 more than 3 ; head generally of one spike 

 only. 

 Spike of 6-12 lanceolate spikelets . . . 7. K. paucijlora. 



Spike of very many spikelets. 



Head green, ultimately dull brown . . Q. K. hrevifolia. 



Head more or less golden-tinged . . . d>. K. erecta. 



