Panicum} GRAMINACEAE. 501 
small (1/s its length) and narrow acute palea. Fertile flower !/s shorter than 
_ the upper glumes, its own glume faintly 3-nerved. Stamens 3, anthers 
purplish. Style long, not swollen at the base, its pe brushes 
globose or short conical, protruding near the apex of the flor 
wamps © the summit of Mt. Eeka, Maui. This grass is a near a oe of 
Je 
most valuable distinctive character is to be drawn from the 
“lea solic sod ieee ne a, 1 floret, which is suppli ied on ly with a small hyaline 
palea, while this in P. repens is se! formed, of th s glume, and generally 
bears 38 stamens. Furthermore, short outer glume is peat i here, not rounded or 
cate as in P. repens, and ca plant is much smaller, particularly its panicle, the 
i istant nor so wi ae eee asi ae fac gent at maturity. 
while the rather obtuse and biconvex entkete elet e raised 0 ce thereby 
entitling the species to a place in the section Mitiaria rather Pay in ree 
13. P. imbricatum, sp. ». — A densely tufted small grass of alpine 
character, with a short and creeping, much branching or forking stem, 
the crowded erect branches 2—3/ high, dividing freely, rooting and mostl 
sterile, Ce aegis the internodes 1/2—1“ in length. Leaves lan- 
ceolate, 5—7‘/ >< 11/2’, imbricate at the base, diviciesis: often deflected 
to one BS strongly many-nerved, subcostate near the base, stiff charta- 
ceous, glabrous; the short and open sheath ciliolate. Ligule short-ciliolate. 
anicle or raceme short, only 5—7“ long and somewhat exserted beyon 
the uppermost leaves, bearing 3—8 spikelets, the rhachis spreading - pu- 
bescent at the lower nodes, as are the lowest rays or pedicels. Spikelets 
mostly single on erect or appressed angular rays or pedicels of more than 
their own length, and scarcely thickened above, ovoid-obtuse, 11/4“, purplish, 
glabrous. Lowest glume less than !/2 the length of the next, rather obtusely 
ovate, 3-nerved, the 2 lateral nerves hes short; second and third glumes of 
equal size, ovate-obtuse, the form , the latter 5-nerved and clasping 
the fertile foret; with a palea of 1/s th size. Fertile flower nearly equalling 
the upper glumes, white, chartaceous, its gl faintly 5-nerved. Stamens 2; 
anthers yellow. Ovary and styles as in the next species. 
: Vv summit of Mt. Eeka, Maui. — However different in habit and appearance, 
recedi i om Gen. M 
i" 
ae 
ag 
3 
* 
I find sc P. nodifior an a tumnal state of P. siehpioiaian L., an 
male, Bolander, rss "California, put both are much less compact and stiff 
.P. isachnoides, Munro, in Seem. Journ. Bot. 1869, p. 178 (name only). — 
A “i densely tufted grass of the habit of the preceding spec ies, the much 
dividing branches stiff, erect, 2—2'/2' long, closely foliaceous, the internodes 
*—3/4"", Leaves distichous, appressed, imbricate, ovate to ovate-lanceolate, 
rather ahetine: 3—4" < 2—21/2", closely and prominently many-nerved, with 
short scabrous anastomoses Sopeecn the nerves, ribless, rigid, conchoid 
or plicate, glabrous above and below, but the margins lined in a pectinate 
manner with long and stiff ciliae which rise from prominent shining and 
