222 YPERACEAE. [ Scirpus. 
t. Corvin va) Roem. eb Ault. ae 
4. §. cernuus Vahl. Enum. ii (1806) 245.—Stems densely tufted, very ~ 
slender, quite glabrous, 2-6in. high, rarely more. Leaves setaceous, 
1-3 near the base of the stem and shorter than it. Spikelets solitary or 
2-3 together, ovoid or oblong-ovoid, ~,-$in. long; bract variable in 
length, usually exceeding the spikelets, continuous with the stem so that 
the spikelets appear to be lateral. Glumes 6-15, broadly ovate, concave 
or obscurely keeled, obtuse or with a short point, green or chestnut-brown, 
Stamens 3, rarely 2 or 1. Style-branches 3, long, linear. Nut about 
i the length of the glume, trigonous, obovoid, obtuse, minutely apiculate, 
not longitudinally ribbed, the surface appearing to be minutely reticulate 
from the numerous subquadrate cells—Cheesem. Man. N.Z. Fl. (1906) 
773. 8S. Savii Sebast. and Mauri Prodr. Fl. Rom, (1818) 22. 8. riparius 
Poir. Encycl. Suppl. v, 103; Benth. Fl. Austral. vi (1878) 327. Isolepis 
riparia R. Br. Prodr. (1810) 222; Hook. f. Fl. Tasm. 1 (1860) 89, t. 145c ; 
Handb. N.Z. Fl. (1864) 302. I. setacea Hook. f. Fl. Nov. Zel. i (1853) 
271 (in part, not of fh. Br.). I. setosa aoul Chow (1846) 40. 
~Norta And Sour IsLANDS, STeEwART ISLAND, CHATHAM ISLANDS, AUCKLAND 
AND CAMPBELL ISLANDS : vis er throughout, Sea-level to 2000 ft. November- 
February. tn , Lete. ot - ae is -\I¢d. So, 
Nearly cosmopolitan, being found in all temperate and tropical countries except 
south-eastern Asia. In New Zealand there are two principal forms: one, which is 
usually littoral, has the stems rather stiff, the spikelets usually solitary and often 
chestnut-brown, and the nut broadly obovoid ; the other is more slender, the spikelets 
are paler, and the nut much smaller, more elliptical, and more acutely trigonous. 
t. 
5. §. antareticus( Linn.) Mant. ii (1771) 181.— Densely tufted, very 
variable in size, sometimes }-14in. high, stout, rigid, cartilaginous; at 
other times taller and more slender, 3-6in. high or more. Leaves | or 
several at the base of the stem and shorter than it, obtuse at the tip, ngid 
and coriaceous in the smaller forms, softer and more grassy in the larger 
ones. Heads solitary, terminal, of 1-4 spikelets in the small stout forms, 
of 3-9 in the larger ones; bracts }-lin. long, usually far exceeding the 
head. Spikelets rather stout, ovoid-oblong, $-+in. long, many-flowered. 
Glumes broadly ovate, boat-shaped with a prominent keel, obtuse or the 
keel produced into a short point, often rigid and coriaceous, pale whitish- 
yellow with a conspicuous dark chestnut-brown spot ; sides broad, marked 
with prominent curved lines; back often curved. Hypogynous scales 
wanting. Stamens 3 or 2, rarely 1. Style-branches 3.. Nut rather more 
than $ as long as the glume, elliptic-ovoid, trigonous, acute, minutely 
punctate, white to yellow, sometimes ultimately almost black—C. B. Clarke 
mM Fi. Cap. vii (1898) 223; Oheesem. Man. N.Z. Fl. (1906) 774. SS. carti- 
lagineus Poir. Eneycl. Suppl. v (1811) 103; Benth. Fl. Austral. vii (1878) 
328. §. ebenocarpus 7. Kirk in Trans. N.Z. Inst. xvii (1885) 224. Isolepis 
cartilaginea R. Br. Prodr. (1810) 222; Hook. f. Fl. Nov. Zel. i (1853) 271; 
Fl. Tasm. ii (1860) 88, t. 145; Handb. N.Z. Fl. (1864) 302. 
_Norru [stanp: Hawke’s Bay —Colenso! A. Hamilton! Wellington — Karioi, 
Kaiwarawara, 7. Kirk! Sourn Istanp: Nelson—Cape Farewell, 7. Kirk / Canter- 
bury—Banks Peninsula, A. Wall; Burnham, 7’. Kirk/ Springfield, 7. F.C. Otago— 
Catlin’s River, Petrie! Lake Wakatipu, 7. Kirk! Bluff Hill, 7. Kirk / StTEwART 
IsuAND: Port Pegasus, Petrie! T. Krik! Sea-level to 2000 ft. | November—March. 
Also in extratropical Australia, South Africa, and St. Helena. 
: 6. S. inundatus-,Poir. Encycl. Suppl. v (1811) 103.—Very variable in 
size and habit of srowth. Stems 2-12in. high, often smail, slender and 
filiform, at other times stouter and taller, and resembling small states, 01 
