Cenchrus. | GRAMINACEAE. 505 
lets. Spikelets as before, but less broad at the top, and both florets 
ciliate and white. Empty glumes slightly reuse the florets, rather 
acutely ovate, the lower one indistinctly 5-, the upper 7- nerved, Stamens 
and stigmas pale brown or yellowish. Hye truncate. 
Woods of the eastern division of Oahu! — Much like J. albens, Trin. 
6. CENCHRUS, Beauv. 
Spikelets 1-flowered, or with a second neuter or male floret below the 
fertile one, single or few together in a stiff multifid involucre, the inner 
’ lobes of which are longest, flattened below and connate in a cup at the 
base; the spikelets deciduous with the involucres; these arranged in simple 
terminal spikes. Sterile glumes 3, unequal, membranous. Fertile glume 
and palea chartaceous, the former enveloping the latter. Lodicules none. 
Stamens 3. Styles terminal, connate below, their elongate linear stigmas 
protruding at the apex of the floret. — Up right grasses with flat leaves. 
o iu + ineee of 12 species, distributed over the warmer regions of both the New and Old 
i stipitate, including only 1 spikelet . : é A - C. calyculatus. 
Invo subsessile, including 3—6 spikelets . C. echinatus. 
1. c. ia ag Cavan. Icon. V, tab. 463. — vue 5 cian — Perennial, 
erect, 1—2 ft. high, the stem stiff, lignescent at the base, branching 
repeatedly. Leaves plane, chartaceous, linear, 6—10‘ long, 4—7" broad, 
rough on margins and nerves but glabrous Sucuehabty the sheaths com- 
pressed and sharply keeled. Ligule of short ciliae. Spike or raceme 
e 
sert 
- Involucres shortly stiniiate patent, even reflexed, lignescent, puberulous, 
fusiform, 5—6“ long, consisting of 6—8 subulate connivent inner lobes, 
which are ciliate below and connate at the base, and of numerous shorter 
erect and spreading outer bristles. pike 4“ long, single in . each, in- 
hir 
5—7-nerved, with a palea of the same length which is 4-nerved, folded 
along the lateral nerves and includes the geen Fertile glume as long as 
the last, thin chartaceous, very acut —7-nerved, convolute round the 
palea, which is 3-nerved and eed oe the lateral nerves. Stigmas 
long linear. — Pennisetum calyculatum, Spr. — Hook. & Arn. in Bot. Beech. 
pp.72 & 101. — C.anomoplesxis, Labill. — Seem. in Fl. Vit. p. 324. — C.Taitensis, 
Steud. — C. agrimonioides, Trin. Diss. II, 72 (our form). — C. fusiformis, Nees. 
On dry ex dges between 1000 and 3000 ft. above the sea, probably on all islands, 
but chiefly on old java fields of E. Maui and Hawaii. Nat. name : «Kamanomano». —- 
Occurs also on the Society and Friendly Islands, on Piteairn Isld., the anaes and Viti 
Stoups and N. Caledonia, but generally has there 2—4 spikelets to an involuere. — The 
peculiar nervation of the paleas is quite anomalous, but I am inable to say if it exists 
also in the forms from the other Pacific islands. 
