FLORA OF MADAGASCAR. 297 
Hzrrocmanmis (§ Scrrprprum) BARONI, n. sp. 
Dense czspitosa, caulibus teretibus haud septatis, spica cylindrica sur- 
sum attenuata acuta, glumis basalibus ovato-oblongis obtusis margine late 
scariosis, glumis floriferis oblongo-lanceolatis obtusis pallide viridibus dorso 
distincte bicarinatis, setis hypogynis 5-6 hispidis, styli ramis 2-3 hispi- 
dulis, staminibus 2-3. 
Stems densely cwspitose, erect, pale green, terete, 12-2 ft. 
long, ;4; in. in diam., continuous inside, the tight-clasping sheaths 
truncate or oblique at the top.  Spikes solitary, erect, cylin- 
drical, 3-1 in. long, 4; in. in diam., tapering to an acute point. 
Lowest glumes small, ovate-oblong, obtuse, with a green centre 
of firm texture and a broad scariose margin, in some of the 
specimens produced into linear-subulate leaves 1-2 in. long. 
Flowering glumes oblong-lanceolate, à in. long, pale green, 
moderately firm in texture, with a two-ribbed distinct green keel. 
Hypogynous setze unequal, retrorsely hispid. Nut only seen im- 
mature.—Central Madagascar, Baron 2076! A near ally of the 
common European Z. palustris, R. Br. 
ScrnPUS (§ IsorgPis) LYALLII, n. sp. 
Perennis, caule tereti sesquipedali, foliis propriis nullis, vaginis basalibus 
apice obliquis, umbellis 3-8-radiatis folio rigido parvo lineari bracteatis, 
glomerulis spicularum centrali sessili, reliquis pedunculatis, spiculis multi- 
floris cylindricis, glumis oblongis acutis arcte imbricatis membranaceis 
castaneis, setis hypogynis nullis, staminibus 3, stylis 3, fructu globoso- 
triquetro nitido. 
Stems 14 ft. long, erect from a rhizome, slender, terete, with 
no proper leaves, but a couple of tight-clasping sheaths, cas- 
taneous downwards, with a rigid linear point adpressed to the 
stem. Inflorescence an umbel of few or many rays, bracteated 
by a rigid erect linear leaf 3-1 in. long; a central globose cluster 
of 12-20 spikelets sessile, the others peduncled, consisting of 
fewer spikelets, sometimes only two or three; peduncles not 
more than 1-2in.long. Spikelets j in. long, cylindrical, tapering 
to a point. Glumes membranous, reddish-brown, oblong-navi- 
cular, acute, } in. long, with a green edge and distinct raised 
l-nerved keel. Styles 3, long, protruded beyond the tip of the 
glumes. Nut drab, glossy, 3 lin. long and broad.—Central Ma- 
dagascar, Lyall 359! Baron! Habit of S. lacustris, but destitute 
of hypogynous bristles. 
