134 R. H. CAMBAGE. 
acuminate, 3 to 4mm. long, 1 to 2 mm. broad, upperside 
green; rachis 5 to 7 mm., with terminal seta; stipules 
reduced to scales. 
Nos. 3 and 4, Abruptly bipinnate, petiole 6 mm. to 1 cm., 
slightly dilated vertically, glabrous; leaflets four to five 
pairs; rachis 5 to 8 mm. 
No. 5. Usually a phyllode, but may be abruptly bipinnate 
and similar to No. 4. 
Nos. 6 to 60. Linear, tapering, rigid, pungent-pointed 
phyllodes, usually verticillate and arranged in whorls of 
about 6 to 8, about 4 to 5 mm. long, with a rather prominent. 
central nerve. 
CALAMIFORMES—(Plurinerves). 
ACACIA RIGENS A.Cunn. Seedsfrom Wyalong. (Plate II, 
Numbers 6 to 8). 
Seeds brown, oblong-oval to ovate, 3°5 to 4 mm. long, 
1°5 mm. broad, 1 mm. thick. 
Hypocotyl terete, greenish-brown, 1°3 to 2 cm. long, 1°5 
mm, thick at base, about ‘7 mm. at apex. 
Cotyledons sessile, oblong, apex rounded, 4 to 5mm. 
long, 1°7 to 2°3 mm. broad, upperside green, underside 
brownish-red to red, with one or two raised lines. 
Stem terete, greyish-green, pilose to tomentose. First 
internode °5 mm.; second to fourth ‘5 to 1 mm.; fifth and 
sixth °5 to 2 mm.; seventh 1 to 3 mm, 
Leaves—No. 1. Abruptly pinnate, petiole 2 to 4 mm., 
green, glabrous; leaflets two to three pairs, oblong-acumin- 
ate, 3 toSmm. long, 1°5 to 2°5 mm. broad, upperside green, 
underside pale green to reddish-green; rachis 3 to5 mm., 
with terminal seta; stipules reduced to flat scales. | 
No. 2. Abruptly bipinnate, petiole 7 mm. to 1°2 cm., 
glabrous, with terminal seta; leaflets three to five pairs, 

