New Alpine Plants. 109 
tially glomerate; bracteoles somewhat keeled, lanceolate- 
ovate, awnless, naked on the margin, blackish-green and some- 
what scabrous at the back; style trifid; caryopsis roundish- 
ovate, plano-convex, slightly angulate at the back, short-mu- 
cronate, pallid, even; hypogynous bristles at the top puberu- 
lous, variously curved, much longer than the fruit. 
Along the rivulets and streams of the lower part of the 
Australian Alps; for instance, at Mount Linster, Omeo, and 
Gibbo Creek, Snowy River, &c. 
Spikelets of the size of Scirpus radicans, between which 
species and §. silvaticus it seems intermediate. 
I add here the only new species of Scirpus, with which I 
am acquainted, although not alpine. 
28. Scirpus leptocarpus. 
Dwarf, annual; root fibrous; stems numerous, slender 
angulate, streaked, one-leaved at the base; spikelets one- 
three, spuriously lateral, ovate, sessile, many-flowered; one 
bract of the involucre elongate, erect, at last horizontal; the 
other of the length of the spikelet; bracteoles oblong, acu- 
minate, slightly reourved at the apex, straw-yellow, with 
brownish margin and green keel; style trifid; caryopsis trigo- 
no-cylindrical, fine dotted; hypogynous bristles white, slightly 
scabrous. 
On moist or sometimes inundated localities on the Murray, 
Ovens, and King, Rivers. 
29. Oreobolus distichus. 
Leaves long, distichous, laxly imbricating, somewhat 
spreading, incurved, channelled, subulate, flat towards the 
summit, dilated and equitant at the base, serrulate-scabrous on 
the margin; peduncles angulate, furrowed, at last tereti- 
compressed ; bracteoles two or three, large, unequal; scales of 
the perigynium lanceolate, acuminate ; caryopsis even, ovate, 
acuminate. 
In peat-moss on the highest summits of the Australian Alps. 
Allied to Oreobolus pectinatus. 
The present species must be considered as an interesting 
addition to the genus. For a long time Oreobolus Pumilio, 
originally from Tasmania, now also observed in the Australian 
Alps, remained the only species. Gaudichaud added Oreo- 
bolus obtusangulus from the Hermite and Falkland Islands, 
