192 



J. H. MAIDEN. 



and rare central gland at the top (found also in A. Basedow!) 

 is not shown. 



The material is sparse, and as Bentham saw no flowers 

 his description of the species may be added to and amended 

 as follows : 



The phyllodes crowd the short spinescent branches. The 

 gland on the phyllode has already been referred to. The 

 flowers are 5-merous, 7 in the head, each with a very short 

 pedicel. The calyx broad, short, truncate, jagged or with 

 short hairs on the top, about one-third (or less) the length 

 of the free, glabrous petals. Ovary smooth. The valves 

 deeply embossed by the seeds, which are covered, as far as 

 their diameter, with a hood-like arillus. 



A. spinosissima Benth. 

 (Syn. A. leptacantha Pritzel). 



A. spinosissima was described with Drummond's 5th 

 Coll. No. 51 (which is before me) as the type. Mueller 

 forgot the type and labelled a specimen from near Lake 

 Wagin, W.A. (Miss M. Oronin) by that name, which I have 

 called A. ferocior. Dr. E. Pritzel, probably misled by this 

 specimen, labelled an identical plant (his 706), A. spino- 

 sissima also. He then had his D. 3987 on hand, and, having 

 a wrong idea of what A. spinosissima is, he looked upon it 

 as new, and described it under the name of A. leptacantha. 

 As a matter of fact, his A. leptacantha is A. spinosissima 

 Benth. and not a new species. 



A. leptacantha Pritzel in Engler's Bot. Jahrb., xxxv, 

 296, (1905). 



The author obtained it in the Avon district, which would 

 include York, Ounderdin, and the surrounding country. The 

 author states that it differs from A. ulicina in having 

 pungent phyllodes, and in its smaller size and numerous 

 rectangularly spreading branches. 



