152 NOTES FROM THE BOTANIC GARDENS, SYDNEY, 



^?-e?noc/i!,^oa. —Pedicellate spikelets very rudimentary, sessile 

 spikes awnless; first outer glume pectinate-fringed at least at the 

 base. Spike solitar}-. 



We feel fully justified in departing from the nomenclature of 

 Bentham and F. v. Mueller {B.Fl. vii., 521) and introducing the 

 genus Eremochha into the Flora of N.S. Wales. Recent mono- 

 graphical works of eminent specialists like Prof. Hackel are not 

 to be ignored, and the genus has already been recognised by J. D. 

 Hooker in the Flora of British India (Vol. vii. p. 180, Gramineje).. 



Agrostis (Deyeuxia) densa, F.v.M. — New for N.S. Wales. 



Mt. Kosciusko, 6000 ft. (R. Helms, February, 1893); Pretty 

 Point, Mt. Kosciu.sko, 5500 ft. 



Mr. Helms' specimens are broad-leaved and have the awn 

 attached somewhat above the middle of the glume, while in the 

 recently collected specimens from Pretty Point the leaves are 

 narrower and the awn is attached a little below the middle. In 

 spite of the difference in the attachment of the awn we must con- 

 sider the two forms identical with Bentham's Deyeuxia densa, in. 

 which the awn is described as attached "about the middle." 



In nearly all our Mt. Kosciusko Agrostis we find the attachment 

 and length of the awn, and even the comparative length of the 

 flowering glume, unreliable characters subject to great variations. 

 Amongst the grasses recently collected on Mt. Kosciusko by 

 Maiden and Forsyth we find A. Muelleri, Benth., in three distinct 

 forms : the typical awnless form, another form with a very short 

 awn or small point attached near the top, and a third form with 

 an awn at least twice as long as the flowering glume attached 

 near the middle. In all other respects the three forms are quite 

 identical. A. nivalis, F.v.M., has also been collected in two 

 forms, the one identical with the Victorian type specimen from 

 Mt. Buller, the other with the flowering glume considerably 

 shorter than the outer glumes. 



Mr. L. Rodway has made a similar observation in Tasmanian 

 species of Agrostis; he writes in a private letter (with regard to 

 A. quadriseta): "The typical form has the awn inserted below 



