318 J. H. MAIDEN. 



V 



botryoides, may be added and also Stuartiana,pulverulenta, 

 microcorys, acmenioides, resinifera, polyanthema, popu- 

 li folia, piperita. 



Nos. 2 and 3 run into each other, and both of them into 

 No. 4. 



"4. Pachyphloice — Cortex ubique persistens rugosus intus 

 flbrosus. (Vulgo, Stringybark trees)." 



"Stringybarks, with persistent, fibrous barks." 



A good natural group, including eugenioides, capiteilata, 

 macrorrhyncha, obliqua, pilularis, var. Muelleriana, 

 tetrodonta . 



"5. Schizophloice— Cortex ubique persistens profunde 

 sulcatus intus solidus. (Vulgo, Ironbark trees)." 

 " Ironbarks with hard, deeply furrowed barks." 

 Perhaps tlie best of all groups. Examples E. sidero- 

 pliloia, paniculata, crebra, sideroxylon, melanophloia. 



" 6. Lepidophloke — Cortex saltern in trunco persistens 

 lamellaris friabilis. (Vulgo, Melaleuca Gum trees, Mica 

 trees)." 1 



With persistent bark on the trunk only, and forming 

 scaly separate pieces. Mueller's examples are miniata 

 (aurantiaca) phoeniceci, peltata (melissiodora), to which I 

 would add tesselaris. 



The Revd. Dr. Woolls 2 ignores section 6, and it certainly 

 cannot be separately maintained as a section. 



The cortical classification separates trees that are closely 

 allied, e.g., hemiphloia and Baueriana, the first being a 



1 The meaning of this, which is not quite clear as it stands, is explained 

 hy the following passage : " The bark of both is very lamellar and friable, 

 outside of a yellowish- or greyish-brown, on fracture partly glittering, 

 and somewhat resembling mica-schist." — Eucalyptographia under E. 

 phoenicea. 



2 Proc. Linn. Soc. N.S.W., vi., ?09. 



