BY J. H. MAIDEN AND E. BETCHE. 151 



found all degrees of transition between the two extreme forms, 

 we have been forced to the conclusion that it can only be a variety, 

 and is merely another instance of the great variability of the 

 Proteaceous trees from which the Order derives its name. 



SANTALACEiE. 

 ExocARPUS NANA, Hook. f. — New for N.S. Wales. 



Bullrock Mt. (W. Bauerlen, 1890); Pretty Point, Mt. Kosci- 

 usko (J. H. Maiden and AV. Forsyth, January, 1899). 



A wiry plant a few inches high, forming a tangled mass 

 encircling a I'ock in boggy ground. 



This plant has been confused with E. humifusa, R.Br. In our 

 plant the scale-like leaves are all opposite or nearly so, and not 

 alternate as in E. humifusa. E. nana is recorded from Victoria 

 ("Summit of Cobberas Mountains at an elevation of 6000 ft.") 

 while the true E. humifusa, R Br., is only recorded from Tas- 

 mania. 



GRAMINE5:. 



Eremochloa muricata, Hackel, in De Candolle's Prodomus, 

 Monogr. Andropog. p. 262 (1889) — Byron Bay (W. Forsyth, Octo- 

 ber, 1898). 



Synonymy according to Hackel, Aegilops muricata, Retz., 

 Rottboellia muricata, Retz., Ischmm,um pectinatum, Trin., Andro- 

 pogon jjectinatus, Steud. 



Recorded previously from the northern coast district of N.S. 

 Wales (extending to the Tableland), as Ischaemum pectinattini, 

 Trin. The grass described in the Flora Australiensis as Rott- 

 boellia muricata, Retz., is, according to Hackel, the var. com- 

 mutata of Rottboellia ophiuroides, Benth., and not the true Rott- 

 boellia muricata of Retzius, which is synonymous with Eremochloa 

 inuricata. 



Hackel separates Ereinochh:>a, Biise, from Ischitmum, Linn., 

 chiefly by the following characters — 



Isch(emum. — Pedicellate spikelets developed, flower-bearing. 

 Sessile spikelets awned or with the flowering glume at least 

 mucronate-pointed. 



