45 



7. E. santalifolia, F.v.M. — The aflfijiity of E. inlularis to this species is not 

 close, but the shape of the fruits and the venation, &c., of the leaves show 

 undoubted affinity to the variety Mtielleriana of the latter species which occurs in 

 the State (South Australia) in which E. santalifolia is found. 



8. E. siderophloia, Bcnth. — Herbarium specimens (in leaf, bud, and flower) 

 of these two species are sometimes a good deal alike (unless the anthers be examined), 

 and the species have hence been confused by the older botanists, who often described 

 eucalypts on what we deem to be imperfect material for such a purpose ; moreover, 

 E. siderophloia was not defined until 1866. I have dealt with the matter under 

 E. persicifolia, Lodd. and DC, while E. fib^^osa, F.v.M., is really a form of 

 E. pilulai'is, and not of E. siderophloia. See page 34. 



Finally, via var. Muelleriana, E. pilularis shades off into the infinity of 

 gum-topped stringybarks. 



Explanation of Plates. 

 PLATE 1. 



Eucalyptus pilularis, Sm. Typical from Port Jackson. 



1. Young shoot, portion of a seedling. Note the dentate margin and tufts of liair.s. 



2. Buds with pointed opercula. 



3. The fruits are nearly globular (pilular). 



PLATE 2. 



Eucalyptus pilularis, Sm., var. Muelleriana, Maiden. Typical for E. Muelleriana, Howitt. Drawn from 

 Gippsland (Victoria), specimens collected and named hy Mr. Howitt. 



1. Young shoot (sucker foliage). The young foliage has tufts of hairs. See Howitt, page .34, This shoot 

 is not so young as the corresponding specimen of E. pilularis. 



2. Buds more clavate than in typical pilularis. 



3. Tlie fruits are nearly globular, with rims of medium thickness, and with non-exserted valves. 



