142 



North-west Plantagenet (Dr. E. Pritzel, No. 345). 



" Flat-topped Yate," Cranbrook, with E. redunca (Dr. L. Diels, No. 2969). 



Height from 80-90 feet. Specimen from mature tree near Government Dam, 

 Peringillup, Great Southern Railway (Dr. Stoward, No. 1206). 



Near Wickepin; no other particulars (Dr. F. Stoward, No. 55). 



• Tree of 8 metres, grey bark. Wyola, Avon district (Dr. L. Diels, No. 5023). 

 (A Mallet, if by " grey," a smooth bark is meant). 



VARIETIES. 



1. var. astringens Maiden. 



2. var. (?) stenantha Diels. 



3. var. eremophila Diels. 



Note on E. erythronema Turcz., var. Roei Maiden. 



4. var. grandiflora n. var. 



For a note on var. oxymitra Diels, which = redunca var. 

 oxymitra, see p. 150. 



1. Var. astringens Maiden. 



We now come to the form which has come into prominence during the last few 

 years because of the commercial value of its bark, known as " Mallet." 



I reiterate that I could not find important botanical differences in flowers and 

 fruits (but see below, p. 143) between this and the " Flat-topped Yate," but the Mallet 

 a s invariably smooth-barked and valuable as a tan-bark, while the " Flat-topped Yate" 

 has a rough bark, which is economically valueless at present. 



I proposed the variety name astringens for the Mallet, as it seems very desirable 

 to have a distinctive name for it, and I give a few notes on the tree. I refer below to 

 tin.' Mallet from an economic point of view, for I spent a good deal of time investi- 

 gating it. 



It is a Gum, i.e., it has a smooth bark in contrast to that of the Swamp Yate. 

 It is erect in habit. The bark has more or less of a leaden colour externally, and as 

 the older skin cracks and flakes away, it becomes in patches almost white. Its bark 

 usually contains a more or less well defined layer of friable brown kino, which is quite 

 evident to the eye, and the fracture discloses such. The presence of this kino is used as 

 a diagnostic character in the trade. 



The timber is tough, and of a pale brown colour. 



The sucker leaves are broadish and slightly glaucous. 



Swamp Yate and Mallet sometimes grow side by side and yet preserve their 

 individuality. 



