98 R. H. CAMBAGE. 



Hypoeotyl erect, terete, at first pale, later becoming 

 brown, sometimes tinged with red, from 1 to 2 cm. long, 1 

 to 1*7 mm. thick at base, *5 to 1 mm. at apex, glabrous. 



Cotyledons two, sometimes three, and in the case of twin 

 stems there are four, sessile, sagittate, oblong to ovate- 

 oblong, at first erect but becoming horizontal in a few days, 

 sometimes becoming revolute, 4 to 5 mm. long, 2 to 3 mm. 

 broad, underside pale and stippled with brown towards apex 

 or sometimes wholly brownish-red to dark red, usually with 

 a raised line along centre, upperside green, glabrous. 



Stem terete, pubescent, brown: first internode '5 mm. 

 long; second 1 mm. to 1 cm.; third 3 to 9 mm.; fourth 2 mm. 

 to 1*2 cm.; fifth 1*5 to 6 mm.; differing in length in different 

 individuals. 



Leaves — No. 1. Abruptly pinnate, petiole 5 to 7 mm. 

 long, glabrous ; leaflets one to two pairs, obo vat e- oblong, 

 acuminate, mucronate, 5 to 7 mm. long. 1 to 3 mm. broad, 

 upperside green, underside paler, midrib fairly distinct 

 especially in dried specimens, second nerve seen under lens, 

 glabrous; rachis excurrent; stipules 1 to 2 mm. long, taper- 

 ing to a fine point. 



No. 2. Abruptly bipinnate, petiole 7 mm. to 1*2 cm. long, 

 slightly channelled above, glabrous, excurrent ; leaflets two 

 pairs similar to those of the pinnate leaf but often smaller, 

 glabrous; rachis 4 to 5 mm. long, glabrous, excurrent; 

 stipules 2 mm. long. In one natural seedling from near 

 Botany Bay, the second leaf was simply-pinnate. 



No. 3. Usually abruptly bipinnate, but in two specimens, 

 pinnate, petiole 8 mm. to 1*1 cm. long, glabrous, excurrent; 

 leaflets two pairs, sometimes obovate ; in two cases the 

 leaflets were wanting and in their places were two spines; 

 stipules spinescent, 3 mm. long, 1 mm. broad at base, some- 

 times sprinkled with white hairs. 



