128 



5a. Enlarged, showing the ventral hiluni, and the rudimentary winr;. 



56. Enlarged, dorsal view of 5a, showing the rudimentary wing and the somewhat depressed back. 



5c. Enlarged, showing a more angular seed with a rather prominent hilum and a nLrrow longitudinal 

 memb.rane; also the slightly upturned marginal wing. 



bd. Enlarged, showing a pyramidal seed with acute ridges and a slightly undulate marginal wing. There 

 is also a wing-like expansion near the hilum. Ooldea Soak, South Australia (Collector, Dr. R. H. 

 Pulleine, 14th September, 1920). 



6. E. Isingiana Maiden, natural size. 



6a. Enlarged ; ventral view, showing the small hilum in the centre and three or four faint radial lines ; 

 also the very thin circumferential wing. 



66. Enlarged ; ventral view of a more acute seed, showing the irregular marginal wing. 



6c. Enlarged; ventral view, showing the hilum, which is scarcely in the centre, of the endosperm, and 

 two obtuse ridges, also the formation of a rudimentary wing on the lower portion. 



6d. Enlarged ; dorsal view, showing the wrinkled back and the very irregular wing. At 407 miles (from 

 Port Augusta), near Ooldea, on the Transcontinental Railway, South Australia (E. H. Ising, 

 September, 1920). 



7. E. angulosa R. Br., natural size. 



7a. Enlarged ; ventral view, showing the hilum and the circumferential wing. 



76. Enlarged ; ventral view of another seed, showing the hilum and six radiating ridges, also a more 

 perfect circumferential wing. 



7c. Enlarged, showing the smooth dorsal surface and the circumferential wing, which is broader on one 

 side. 



Id. Enlarged, showing the very irregular ventral surface and a much reduced circumferential wing. 



These were drawn from specimens cultivated in the Botanic Gardens, Sydney (origin 

 uncertain); they match seeds from Bremer Bay (S.W. Australia), which were not fully drawn. 



Series Heteroptera. 



Seeds very light, and surrounded by a thin membrane. 



8. E. eudesmioides F.v.M., natural size. 



8a. Enlarged ; ventral view, slowing the small hilum in the centre of the endosperm, which is partly 

 obscured by a very thin membrane, and also the very irregular circumferential wing. 



86. Enlarged ; dorsal view of 8a, showing the rudimentary wing on the back and the circumferential 

 wing. 



8c. Enlarged ; ventral view of seed, showing the transverse rudimentary wings and the irregular circum- 

 ferential wing. 



Sd. Enlarged ; dorsal view of 8c, showing the longitudinal dorsal wing and the circumferential wing, also 

 two short lateral wing?, the latter more rudimentary than the others. The membranous wing has 

 an almost white, transparent edge. Minginew, Western Australia (J. H. Maiden). 



9. E. tetragona F.v.M., natural size. 



9a. Enlarged; dorsal view, showing the lprgltudinal wing and the broader circumferential wing. 



96. Enlarged ; ventral view of 9a, showing the hilum an,d a short longitudinal wing, and also the broad 

 circumferential wing. 



9c. Enlarged; dorsal view of another seed, showing a longitudinal ridge instead of a wing, and also the 

 broad, scarcely entire, circumferential wing. (Closely resembling E. eudesmioides.) Hopetoun, 

 Western Australia (S. W. Australia) (J. H. Maiden, 1909). 



10. E. tetraptera Turcz., natural size. 





