169 



Fertile seeds glossy, light to dark brown, 6-8 mm. long, 4-5 mm. broad, very 

 light, ovate to triangular ; the thin testa expanded into a broadish membranous marginate 

 wing, and sometimes two of the outer ventral ridges are also winged; back smooth, 

 very convex owing to the incurving of the winged margin.' Hilum terminal, usually 

 narrow, paler than the thin, firm testa. Endosperm albuminous, rather soft, the basal 

 portion usually terminating in a very fine hyaline wing or membrane ; the hilum large 

 and darker than the endosperm. 



Sterile seeds angular, somewhat subulate to broadly D-shaped, smaller than the 

 fertile seeds, and very numerous. 



Wing broader than the wing of E. Todtiana and E. pachyloma. Bremer Bay, 

 Western Australia (J. Wellstead). 



E. pachyloma. 



Fertile seeds glossy, light brown, 2-3 mm. long, 2-3 mm. broad, more or less 

 D-shaped, to somewhat ovate; the firm, but thin testa expanded into a narrow, 

 marginal wing surrounding the seed, the inner face with two to three prominent ridges 

 extending from the hilum to the outer margin, the broad back very convexed, and slightly 

 rugose. Hilum terminal, very small, orbicular, paler than the testa, the space surrounding 

 it nearly fiat. 



Sterile seeds glossy, very pale-brown, 3 mm. long, 1-2 mm. broad, somewhat 

 triangular to D-shaped with very sharp edges, and more or less depressed on both sides, 

 the inner face usually straight, the back convexed, very numerous. In textiire they 

 are much thicker and harder than the fertile seeds. Kalgan Plains, Western Australia 

 (J. H. Maiden, 1909.) 



Series Neuroptjra, 



Fertile seeds light brown, 4-5 mm. long, somewhat triangular ; the testa expanded 

 circumlaterally into a conspicuous concave wing, supported on the ventral by four or 

 more diverging nerves. Hilum terminal, very narrow. 



Sterile seeds polymorphic, the broad ones more or less D-shaped. 



E. Todtiana. 



E. Todtiana. 



" Fertile seeds expanding laterally into a broadish transparent membrane. Sterile seeds rather 

 large, not very numerous, generally not much longer than broad, brown or blackish, angular, often 

 compressed, 1-1 \ lines long. Fertile seeds very few, pale-brown, measuring, with addition of the membranous 

 expansion, 2-2A lines; the surrounding membrane on the summit of the nucleus very short or there not 

 developed." (" Eucalyptographia," figs. 9 and 10.) 

 F 



