408 
CYPEEACEiE. 
[Ci/ per us. 
rather squarrose, much imbricated. Achene oblong, plano-convex, 
brownish, half as long as the glume. 
Mauritius, in swamps at Flacq and Pamplemousses, Bojer. Tropical Asia and 
Nile country. 
3. C. globosus, All. Auct. FI. Fed. 49. Annual, densely tufted. 
Stems slender, erect, triquetrous, foot long. Leaves linear-subulate, 
nearly as long as the stems. Umbel of 1-4 clusters, each containing 
several spreading spikelets, if more than one the others shortly 
peduncled ; bracts usually 3, linear-subulate, unequal. Flowers 20-40 
in a spikelet. Glumes in. long, oblong-navicular, obtuse, much 
imbricated, drab with a green keel. Achene oblong, opaque, brown, a 
third as long as the glume. C. capillaris, Boxb. ; Bojer , Hort. Mccur . 
379. C. divaricatus, Lam. C. vulgaris, Sieber ; Kunth, Emm. ii. 
4. C. lanceolatus, Sieber , Herb. Maur. No. 32, not Foir. 
Mauritius and Seychelles, common in damp soil. Through the tropics of the 
Old World. Not Bojer’ s jlavidm, which is C. polystachyus , Rottb. 
4. C. polystachyus, Bottb. , Kunth , Enum. ii. 13. Perennial. 
Stems densely tufted, triquetrous, much stouter than in the last, 1-2 
feet high. Leaves linear, much shorter than the stem, sheathing it for 
some distance above the base, in. broad. Spikelets in many dense 
clusters, all nearly sessile, or outer shortly peduncled, £-£ in. long, 
15-20-flowered ; involucre of 5-6 unequal linear leaves 2-3 times as 
long as the heads. Glumes greenish-brown, ^ in. long, acute, much 
imbricated. Achene oblong, castaneous, opaque, half as long as the 
glume. C. flavidus, Bojer , llort. Maur. 380, not Betz. 
Mauritius, Rodriguez, and Seychelles, one of the commonest species. Round 
the world in the tropics. 
5. C. emeritus* Betz. Obs. v. 13. Perennial. Stems from a wide- 
trailing rhizome, triquetrous, £-1 foot long. Leaves several, short, linear, 
in. broad. Clusters of spikelets several in an umbel, the outer ones 
shortly peduncled ; involucre of about 3 short linear leaves ; spikelets 
in. long, 15-30-flowered. Glumes in. long, much imbricated, oblong- 
navicular, obtuse, dark shining red-brown. Style much exserted from 
the glume, bifid. Achene subglobose, dark brown, a quarter as long 
as the glume. C. Eragrostis, Vahl ; Kunth. Enum. ii. 7. C. sanguino- 
lentus, Vahl. 
Mauritius, in sandy soil. Tropics of the Old World. 
6. C. ferrugineus, Foir. ; Kunth , Enum. ii. 19. Perennial. Stems 
tufted, erect, triquetrous, a foot or more long. Leaves several, linear, 
as long as the stem, in. broad. Clusters numerous, in a simple 
umbel, bracteated by 6-8 long linear leaves, the outer ones on peduncles 
1-2 in. long ; spikelets i-f in. long, 15-20-fiowered. Glumes in. long, 
