56 



As regards leaves, specimens of this species afford illustrations of Diels's Law, 

 and of the varying shapes of intermediate leaves. 



Mallet Scrub. — At Part XXXVI, p. 141,1 have referred to the dense, heath-like 

 scrub which goes under the above name. I examined a good deal of it on the Kalgan 

 Plains, and figured it at figs, la-lg, Plate 149. In that Part I look upon it as a 

 depauperate form of E. occidentalis . I am now inclined to think that it may be a 

 depauperate form of E. astringens, and invite the attention of our Western Australian 

 friends to the subject. Mr. Gardner informs me that there is a scrubby form at 

 Tambellup, in sandy soil, which is a low form of E. astringens and not of E. occidentalis . 



SYNONYM. 



E. occidentalis Endl., var. astringens Maiden, in Joum. W.A. Nat. Hist. Soc, 

 hi, 186 (1911). Eeproduced at Part XXXVI, p. 142, of the present work. 



RANGE. 



It is confined to south-western Western Australia. Sjoecific localities have 

 been dealt with in Part XXXVI, pp. 144, 145, and especially at p. 146. 



A general statement as to Range will be found in the top paragraph of p. 144, 

 and this may be compared with the statements of Mr. C. A. Gardner : — 



" Southwards from Pingelly on the Great Southern Railway to beyond Tambellup and 

 Gnowangerup, eastwards to beyond Lake Grace and Bendering, and westwards to the vicinity of Dwarda 

 and Arthur River (Albany Road). In the northern localities the species is confined to the laterite cap>s 

 and slopes of hills. Towards the south it descends to the loam flats, but usually where laterite is present 

 in the soil. At Wagin, which is about the centre of the Mallet areas, the trees are very common, and some 

 have been seen growing in a granite soil." (9th February, 1922, and 7th February, 1923.) 



Wickepin, 27th November, 1916 (Mr. F. M. C. Schock, on behalf of the Forest Department, Western 

 Australia) ; Wagin, in laterite, on rising ground. (C. A. Gardner, No. 1223.) 



Owing to the demand for the bark of this species, Mr. Gardner points out that 

 it is " now rarely seen in a mature state." Mr. Gardner tells me that the eastern limit 

 of E. astringens and E. Gardneri is not known. " It has been suggested by Mr. Schock 

 as some distance east of Kondinin, but, owing to the comparative scarcity of either 

 species in the Kondmin district, I am inclined to think that they do not extend much 

 further east than* that station." 



The specimens from near Meare's Lake (0. H. Sargent, No. 707), referred to in 

 detail at Part XXXVI, p. 146, belong to E. Sargenti, n.sp., see p. 58. 



