266 CLY. RESTIACEZ (BROWN). | Hypolena. 
outer, pale yellowish-brown, Stamens 3; filaments filiform, free ; 
anthers 1 lin. long, linear-oblong, subacute. Pistillode minute, tri- 
gonous, reddish. Female inflorescence not seen, 
Mozamb. Dist. British Central Africa :. Nyasaland ; Zomba, Mahon ! 
Besides the above, the Kew Herbarium contains a flowerless specimen collected in 
Nyasaland on Mount Mlanji, at 7000 ft. alt., MeClounie, 28! It may be the same 
as the species above described, but the stems and branches are stouter, the sheaths 
5-9 lin. long, and the plant itself appears to be of taller growth. Until flowering 
specimens are procured it cannot be properly determined. 
Orver CLVI. CYPERACEH. (By C. B. Clarke.) 
Flowers glumaceous, 2- or 1-sexual. Perianth hy pogynous, of 6 or 
fewer small scales or bristles, not petaloid, frequently irregular or im- 
perfect, often 0. Stamens 3-1, free, all anterior. Ovary superior, 
ovoid, 1-celled; ovule 1, basal; style 1, linear (base often thickened), 
branches 3 or 2, or very rarely (in Rynchospora and a few species of 
Cyperus) very much shortened so that the style is subentire. F rult a 
nut. Seed obovoid or ovoid; testa thin; embryo minute, obpyramidal, 
at the base of the (usually floury) albumen.—Herbs. _ Stems solid. 
Leaves narrow, grass-like, usually very tough and inedible; sheaths 
generally cylindric, entire, in some species of Hriospora split as in 
grasses. Flowers 1 or many in spikelets (the axis of which bearing the 
glumes being the rhachilla of the spikelet), which are 1- or 2-sexual, 
with empty glumes either at the bottom or top or both. Spikelets 1 or 
many or very numerous, solitary, or in clusters (such compound inflor- 
escences usually designated spikes). Spikes or spikelets arranged in 
corymbs or apparently in umbels or in various ways. 
Species about 3300, extending throughout the world, growing especially in damp 
places. 
Sub-Order I. Scrrpo-Schanex. Fertile flowers all with perfect stamens, 
axillary. 
TRIBE I. Cypereze. Empty glumes at the base of the spikelets 2 or 1 3 Sertile 
glumes many, few, or 1 to the spikelet, 2-ranked ; hypogynous bristles 0; inflores- 
cence an umbel or congested into a head ; stem naked. 
Style 2-branched. 
Spikelet of 1 or 2 flowers ; rhachilla deciduous . 1. KYLLINGA. 
Spikelet of several or many flowers ; rhachilla per- 
sistent. 
Nut compressed laterally. : : : . 2. PYCREUS. 
Nut compressed dorsally 3. JUNCELLUS. 
Style 3-branched. 
Rhachilla persistent é : : : : . 4. CYPERUS. 
Rhachilla deciduous in one piece. 
Flower-glume not winged on thekeel . : . 5. MARISCUS. 
Flower-glume winged on the keel : : . 7. CoURTOISIA. 
Rhachilla breaking up into as many joints as nuts . 6. TORULINIUM. ‘itp 
TRIBE II. Seirpeve.— Empty glumes at the base of the spikelets 2-0 ; fer ' ss 
glumes usually numerous, spirally arranged (though often almost distichous in wines 
bristylis, sect. Abildgaardia, and in various other species) ; inflorescence umbella 
or capitate, and stem naked (except in Fuirena). 
