322 



(2) Cotyledons (Petiole, taper). 



E. rigidula, V-sliaped, usually shorter than the filiform petiole, not tapering. 



E. transcontinentalis, V-shaped, usually shorter than the scarcely filiform tapering 

 petiole, the lobes spreading, slightly cultriform. 



(2a) Cotyledons (Undersurface, Miss Flockton). 



E. rigidula, green (Comet Vale). 



E. transconlinentalis, slight pink tint (Hugh River, Northern Territory) ; slight 

 purple tint (Ooldea) ; green (Cobar) ; faint tint of pink (Coolabah) ; green (Coolabah). 



(3) Stem (Miss Flockton). 



E. transcontinentalis, angular, pale green, edged with red partly up, smooth 

 (Ooldea) ; shaded pink, tetragonal (Coolabah). 



(4) 1st Pair of Leaves (Petiole, shape, vestiture). 



E. rigidula, shortly petiolate, linear-lanceolate, glabrous. 



E. transcontinentalis, shortly petiolate, linear-lanceolate, shorter than in 

 E. rigidula, glabrous. 



(5) Subsequent Pairs of Leaves (Number, shape, vestiture). 



E. rigidula, six or more, linear to narrow-oblong, changing to narrow-lanceolate, 

 sessile, glabrous, olive-green. Stem reddish. 



E, transcontinentalis, six or more, linear to narrow-lanceolate, sessile, glabrous, 

 olive green. Stem reddish. 



(P>) Intermediate Leaves. 

 E. rigidula, narrow-lanceolate or oblong lanceolate, very shortly petiolate, some- 

 what rigid, 4-5 cm. long, 1 cm. broad, veins obscure, olive-green. 



E. transcontinentalis, narrow-lanceolate, sessile to very shortly petoilate, rigid, 

 but soon changing to undulate, 5-7 cm. long. 1-1-5 cm. broad, veins obscure, sub- 

 glaucous, shading to very pale light green. 



(6a) (Miss Flockton). 



E. rigidula. 



1st leaves linear, nearly sessile, with irregular edge, channelled. L,eaves narrow- 

 lanceolate, sessile (Comet Vale). 



E. transcontinentalis. 



1st leaves narrow-linear, channelled in the early stage, undersurface slightly 

 paler green (Hugh River, Northern Territory). 



1st leaves linear, channelled. 1st alternate leaves lanceolate, pale opaque green, 

 the venation practically invisible. Note channelled leaf (Ooldea). 



