320 J. H. MAIDEN. 



(c) inferior, such as gums, — which is a useful practical 

 classification. In my " Notes on the Commercial Timbers 

 of New South Wales " (1895), I submitted the classification 

 (1) ironbarks, (2) pale hardwoods, (3) red hardwoods. 



1. Gums — These timbers are short in the grain, dry to a 

 brown or reddish colour, crack radially in drying, have 

 many gum veins and, as a rule, lack durability. Their 

 barks are smooth, and more or less ribbony. Examples — 

 stellulata, coriacea, hcemastoma, vlminalis, Gunnli. They 

 connect with the "Boxes" (Bastard), and also with the 

 smooth barked members of the Jarrah Group. 



2. Mallees — Examples — oleosa, Behriana, incrassata. 

 This is a group based on geographical considerations. They 

 are arid country species and connect the "Gums" and 

 "Red Boxes." 



3. Ironbarks — These are fully described in my "Notes 

 on the Commercial Timbers of New South Wales." They 

 consist of (a) True Ironbarks, viz., paniculata, s icier ophloia, 

 crebra, sideroxylon; (b) Bastard Ironbarks, timbers very 

 similar to ironbarks, but the barks belonging to the "Box" 

 Group. They consist of Boormanl and affinis. Melcino- 

 phloia (and perhaps mlcrotheca) connects the two groups. 



4. Boxes — These are tough, interlocked timbers, usually 

 with fibrous bark on the trunk, and may be sub-divided 

 into : — (a) Pale, Examples — hemiphloia, melliodora, Bosis- 

 toana, Bauerlana, populifolia, quadrangulata, Cambagei, 

 gonlocalijx, tesselarls, leucoxylon, corynocalyx, globulus, 

 (6) Red, Examples — bicolor, mlcrotheca, polyanthema, 

 odorata, fasclculosa. These two groups include some 

 smooth barks or "gums" but their timbers are provision- 

 ally classified with the "Boxes." 



(c) Bastard, Examples — Stuartiana, pulvendenta, Mac- 

 arthuri, aggregata. The timber of (c) is inferior and closely 

 resembles that of the gums. 



