114 R. H. CAMBAGE. 



while both margins are nerve-like. There appears to be 

 some relationship between this central prominent nerve and 

 the strong lower-marginal nerve which appears on the 

 earliest dilated petioles. These nerves do not become con- 

 fluent with the lower margin towards the base as in the 

 case of A. Cunninghamii. 



Plurinerves — Juliflorse — Falcatse. 



Acacia Cunninghamii, Hook. Locally called Ourracabark. 



Seeds from Barber's Pinnacle, Boggabri. (Plate XI, 



Numbers 7 to 9.) 

 Seeds black, oblong, about 4*5 to 5 mm. long, 1*5 to 2 mm. 

 broad, 1*5 mm. thick. 



Hypocotyl erect, terete, pale red, 1*5 to 3*6 cm. long, 1 

 to 1*4 mm. thick at base, *6 to 1 mm. at apex, glabrous. 



Cotyledons sessile, oblong, sagittate, 6 mm. long, 2 mm. 

 broad, underside red, upperside green, glabrous. 



Stem terete, or slightly angular where affected by the 

 decurrent leaf-stalks, pilose to hirsute. First internode 

 *5 mm.; second *5 to 3 mm.; third, fourth and fifth about 

 2 to 4 mm.; sixth about 1 cm. 



Leaves — No. 1. Abruptly pinnate, petiole 2 to 5 mm. 

 long, green, sprinkled with a few hairs; leaflets two pairs, 

 oblong, acuminate, 4 to 9 mm. long, 2 to 3 mm. broad, 

 upperside green, underside red, in some cases becoming 

 reddish-green, midrib distinct, secondary vein showing 

 under lens, margins sometimes red with a few scattered 

 hairs ; rachis 2 to 4 mm. long, glabrous, excurrent ; stipules 

 reddish, 1 mm. long. 



No. 2. Abruptly bipinnate, petiole 6 mm. to 1 cm. long, 

 green, pilose, sometimes becoming hoary, excurrent; leaf- 

 lets two pairs, upperside green, underside red, often 

 becoming pale green, margins often red, with a few 

 scattered hairs; rachis pale green, pilose, excurrent. 



