498 GRAMINACEAE. [ Panicum. 
gag pali of Makonalua; Maui! Haleakala; Oahu (Lay & Collie). In genres 
fro Maui a slight pubescence becomes visible on the nodes of the stems and o 
the 1 Seep 
7 var. xerophilum. — Stem 1—2 ft. high, simple or once dividing. Spreading 
hairs with a tubercular base cover the nodes of the stem and the sheaths 
and blades of the flat or convolute leaves. Panicle narrow, wand-like; its 
rays hairy throughout, the lowest 3—6‘ long. poaeity 1“, glabrous. 
owest glume 3-, the second 5-, the third 5—7-nerved. — P. nephelo- 
philum, Hook. & Arn. 1. c. — The ciliate ligule pO with the adjoining 
hairs and is therefore bets overlooked. e hairs are apt to drop early. 
On dry exposed ridges of Oahu! Lanai! and Maui! Maalaea. 
3 var. rhyacophilum. — Spreading hairs with tubercular bases on stem, 
leaves and sheaths, those of the leaves rather viscid. Leaves narrow and 
convolute, almost subulate, only 1/2 broad, rather stiff and erect. Panicle 
. narrow and lean; spikelets as before, 11/2“; the first. glume 3-, 
e third 7-nerved, with a palea of 4/3 its lieliatii: Whole plant about 
: ah igh. 
awaii! on lavafields of Laieha, 6000 ft. above the sea ee: paste (M,. & B 
son, — Very different from o in appearance. Indeed every o varieties would 
be taken for a distinct « species by any one not in possession a a (hagas material. 
. P. cynodon, Reichardt, in Ber. d. k. Akad. d. Wissensch. in Wien, 
fox. 724. — A low oo -_ 4—9‘ in length, the slender 
_ stems puberulous and branchin 4 times, geniculate at nearly every 
node in a zigzag manner, leafy Hesleeae the last leaf at the base of 
the panicle. Leaves divaricate, linear, plane or convolute, puberulous, 
I'/e—2‘ long, the blades only little longer than the shieadtic and these 
exceeding their internodes. Ligule of a few long and soft whitish ciliae. 
Panicle small, 1—2‘ long, narrow, the branches closely appressed, single 
or two together, each with only toni spikelets, the lowest about 1/2’ long; 
rhachis and rays softly pubescent. Spikelets on short pedicels, greenish. 
ovoid, about 1“, cites Sterile glumes broadly and somewhat obtusely 
ovate, of equal size, with prominent nerves; the first 3-, the second and 
third 5—7-nerved, the latter with a small hyaline palea of scarcely */s its 
own length. Fertile glume 1/s—1/2 shorter than the others, chartaceous, 
white, rather acute. Styles as in no. 5. 
Kauai! Waimea (Wawra). The habit of the plant — prostrate, with acjleesbiesd leaves — 
— that of Cynodon dactyton; but in the genus it fin lose neighbor in the 
(P. 
i 
Munro also found it in either Wilkes’s $s or Mann & Brigham’s collec’ 
Jade  Beecheyi, Hook. & Arn. in Bot. Beech. p. 100. — «Stem decumbent, 
, glabrous silky at the nodes. Leaves convolute, glabrous in 
