Cyperus. ] CYPERACEX (Clarke). 177 
species. Indeed C. prasinus has been reduced to C. albostriatus in herb. Kew, 
though the broad thin leaves of the latter differ at first sight widely from the 
narrow tough leaves of C. prasinus. 
26. C. leptocladus (Kunth, Enum. ii. 32); glabrous ; rhizome 
woody ; stems 12-20 in. long, rather slender, trigonous at the top; 
leaves often nearly as long as the stem, 4 in broad, more or less 3- 
nerved ; umbel lax, compound, 3-8 in. in diam., irregular, sometimes 
proliferous ; bracts about 8, somewhat overtopping the umbel, 
similar to the leaves ; spikelets mostly solitary, pedicelled, 1 by 54, in. 
compressed, 8—14-flowered, greenish, ultimately dirty straw-coloured ; 
glumes boat-shaped, obscurely 3-nerved, green on the back, keel 
subexcuirent in a muero, margins broadly scarious not scabrous on 
_ the edge; stamens 3; anthers linear-oblong, hardly crested; nut } 
the length of the glume, ellipsoid, trigonous, brown; style 4 the 
length of the nut, branches 3 shortish. Boeck. in Linnea, xxxv. 
581 partly. 
EasterRN REGion: Natal; Coast-land, 0-1000 ft., Sutherland! Durban, 
Kuntze, 227! and without precise locality, Drége, 4441 ! Buchanan, 318! 
In Durand and Schinz, Conspect. Fl. Afr. v. 566, I have united my C. Bal- 
Jourii (Journ, Linn. Soc. xx. 289) and some other Mascarene examples with C. 
leptocladus. he type example of C. Balfourii does not exactly match C. lepto- 
cladus, having narrower spikelets, and the other Mascarene “ C. leptocladus 
differs much more, 
27. C. subchoristachys (C, B. Clarke); glabrous; roots fibrous; 
in. long tufted, slender, trigonous at the top ; leaves 
very long, often overtopping the stem, }~} in. broad; bracts 3-4, 
4ppearance simple, rays 3-4 up to 12 in. long; spikelets 8-20, 
clustered without bracts at the head of each ray, forming a short 
spike or compound close head ; spikelets 3 by 34; in, 8-14-flowered ; 
glumes ovate-oblong, obtuse, distant, not imbrieate in fruit, green, 
Stamens 3; style 3-fid; nut 2 the length of the glume, obovoid, 
triquetrous, black. 
x Coast Region: Cape Town, Spielhaus! in herb. Luebeck. No specimen at 
Ww. 
This plant js closely allied to the ubiquitous C. diffusus, Vahl. It has much 
harrower leaves and bracts, the spikelets are aot in few-flowered digitate clusters 
and the glumes more obtuse, ‘- 
. ; stems often 3 ft. long, triquetrous at the 
top, ¢ in. in diam. (slenderer in var. 8); leaves 18 by { in. thick, flat 
m 
