52 



Sydney District.— Port Jackson (Robert Brown), 1802-5, No. 4,751 ; Mrs. 

 Macquarie's Chair, Outer Domain (J. H. Camfield) ; Mosman's Bay (Rev. J. W. 

 Dwyer) ; Manly (Rev. Dr. Woolls) ; Concord (J.H.M.) ; Rockdale (H. Deane, J. H. 

 Camfield) ; Botany (H. Deane) ; La Perouse (J.H.M.) ; with pointed opercula. 

 Kurnell (J. L. Boorman) ; National Park (J. L. Boorman). 



Northern Localities. — Sandgate, Newcastle (Jesse Gregson); in patches on 

 the ridges near Port Stephens ("W. R. Stacy). 



. AFFINITIES. 



1. "With E. saligna Sm. 



We have here one of the most instructive examples I know of, in which two 

 species, reputedly well known, run into each other. I cannot separate some of the 

 forms, and therefore there is much to be said for my view to make one a variety 

 of the other. On the other hand, there is much to be said for the view that the two 

 ends of the series should be looked upon as distinct species, viz., saligna and 

 botryoides. .The more I examine the position, the more I am puzzled, and as a 

 matter of pure expediency I separate the two so-called species in this Part. 



I reprint part of my paper in Proc. Linn. Soc. N.S.W., xxx, 502 (1905), 

 with some unimportant additions : — 



E. saligna Sin., ami E. botryoides Sin. [E. botryoid » Sm.= E. saligna Sm. var. botryoides, var. nov.). 



I propose to snow that the above two species are conspecific. Their affinity long ago impressed 

 me. In 1889* I wrote, "In external appearance and timber it (E. botryoides) seems to merge into 

 /. saligna." I have examined tie' trees for many year.-, latterly with Mr. R. II. Cambage, to settle this 

 one point, Le., is there any character to separate the species? To carry out this work we chose (amongst 

 other localities) the Brisbane Water (N.S.W.) district, which is the home of typical '-Blue Gum" 

 (E. saligna), and the Otford (Stariwell Park) district, in which typical E. botryoides is abundant. 



We found E. maligna with rough hark up to the first fork, and even higher up, in shallow valleys 

 facing thi /.. at Kincumber, Brisbane Water. From the Bine Gum Hats (with il) in the 



neighbourhood, with their typical I ipproach the sea and the innutritions 



sandy soil and strong sea breezes, we find that the rough bark gradually creeps up the butt, and the 

 - themselves become more crooked, and even gnarled, finally merging into E. botryoides. The same 

 thing was noticed in southern loealit , 



The following states the ens. in regard to typical sp cimi us : 



"The differences between E. saligna and E. botryoides are habitually very great on account of 

 thei :ve bark — thin, smooth, and pale in tln.-k, rough, and dark in the other; but (!)>• 



characteristics of the 1 fruits are far Le I, being almost reduced in /.'. botryoid i to a 



shorter and blunter lid, an usually more angular tube "f the calyx, and n itally enclosed valves of 



the fmi' ' Eucalyptographia, Mueller, under E. saligna.) 



7 n ti ler E. botryoid ■' has arise! soil along 



nUUUDg streams, its •• klypts. . . . [this is K. 



taliana. J.H.M.]; wl till useful for sawing and fencing, 



though the si ••■•!. . . . [this is /■' — J.H.M.]. / is in 



nat , j_.|, distil by the ' its bark, which a it! outer layers 



rely; otherwise th<- dill longer lid, and in 



fruits with half exserted val 



•■ ■ i 135. 



