182 CYPERACE® (Clarke). [ Cyperus, 
36. C. rotundus (Linn. Sp. Plant. ed. ii. 67) ; glabrous; rhizome 
woody, creeping, with tuberous thickenings ; stem 8-24 in lon g, erect 
at the base, trigonous at the top, smooth leaves 2 the regi of the 
stem, 1-1 in. broad ; umbel 1-8 in. diam. , compound simple or of 
one spike; bracts 4 oveatopping the umbel ; spikelets spicate, 
1 by ;—J5 in. (in the large Cape form), much ‘compressed, 12-24- 
flowered, chestnut- #68 thachilla seeawpiaed: glumes boat- 
shaped, ovate, pointed, aE 3 nerves forming the eels stamens 3; 
anthers linear, no crested ; nut + the length of the glume, trigonons 
obevoid, dark-brown ; style shorter than the oe branches 3 lin 
longish. Kunth, mum. ii. 58; ° Boeck. in néd, XXXVI1. 283 
C. B. Clarke in Journ. Linn. Soc. xxi. 167, oe in ak. f, Hi: Brit 
Ind. vi. 614. 
VaR. B, ora (©. B. Clarke in Journ. Linn. Soc. oe. dagen 
greatly aongated, 2h in, long, with 68 flowers in Saunt 312. k. f. Fl. 
neat eee i, 615 
peeaake s(0.B. Clarke in Durand See Schinz, Conspect. Fl. Aft. v 
570) spikelets large, clustered, suberect. C. twberosus, Boeck. in Linneo, 
vi, 285, in great part, i.e. the “African examples. 
“Gxonat .. Albert Div., Cooper, 1365 ! 
WestERN Reeion: Little scale hen near the mouth of the Orange 
River, Dri, 2 468! 
EasTERN RecGion: Natal, Site 297! Var. B, Natal, Buchanan, 312! 
vey do Bay, Junod, 211! Fj Katfraria, Schultz. Natal, Gerrard, 705! 
rege, 4 
Nini distributed i in all tropical and warm-temperate regions—a rice-field 
pes 
. Durand and ~~ por ees Fi. Afr. v. 575, I followed Mr. N. EB. Brown 
and sorted Buchanan, 109, 311, as C. Lincs var. platystachys ; 1 new follow 
Mr. Baker and sort a as e natalen 
a ‘ 37. C. longus (Linn. Sp. Plant. ed. ii. 67); stem decumbent at the 
ase ; 
C. Fierce num. ii. 60; Boeck. in Linnea, xxxVvl. 979, 
excluding var. B, ¢, 6,9; C. B. Clarke in Journ. Linn. Soc. xxi. 163, 
excluding var. B, y, and in Hook. f. Fl. Brit. Ind. vi. 614. (Type 
form not known from South Africa. 
R. 6, tenuiflorus (Boeck. in Linnea, xxxvi. 281) ; umbel lore straggling, with 
cal seared rays ; spikes denser ; Ba nein set more brightly co eoloured, more 
brown or chestnut. C. tenuiflorus, Rotth. Deser. et Ie. 30, t iA, fig. 1. C. badius, 
- lant. i. 45, t. 7, fig. emarginatus, Schrad. . Fl. Cap. 5; 
unth, Enum. ii. erylorus, Steud. in Flora, 1829, 152, and Sy 
3 n Linnea, vii. 517; x. C. amenus, Kunth, 
Enum. ii. 58 longus var. badius, Cambess. in Mém. Mus. d’?Hi ss 
323 ; Boeck: innea, x ; C. B. Clarke in seg — a xxi. 169. 
- ¢. to var. elongata, C. B. Clarke in Journ. Linn. Soc =U. 
} ( 
élongatus in bia authors and pinta not Dre 
two ‘Pflan zengeogr. Documente 177 p ais Sieber). 0 rotund, i 
pia “Avs: Pia 2469! a 170! Eckl, Zeyher, 64! 
gion: Clanwilliam Div.; W. Dat Didje Cape Di ce : 
lats, —— 3926! 3926b | uppert ro e! Cape Bay, “ 
F amps Ba, 
885! al the ponds near Cape Town, Burchell, 675! Bota any Bay ; 
‘ ape 
ata pres 254! Paarl Div.; by the Berg River, below 500 ft., va Dre eye 
SON tees 
