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 Kiver, &c. 



Spikelets of the size of Scirpus radicans, between which 

 species and S. 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 recurved 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, Kivers. 



29. Oreobolus disticJms, 



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 sunomits 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^, 



