NOTES ON ACACIA. 



483 



with short hairs at the top. Petals glabrous. Pistil pale 

 green when fresh and very smooth. 



Pod. Nearly flat and straight, slightly constricted 

 between the seeds, which are disposed longitudinally. About 

 7 cm. long and 7 mm. broad. 



Funicle thread-like ; at the end of the first kink it is 

 sharply bent and twice encircles the seed, finally termin- 

 ating in a club-shaped arillus. 



Habitat. Wombeyan Oaves, N. S. Wales, on the lime- 

 stone, (R. H. Oambage, B. C. Andrews and J. H. Maiden, 

 October, 1905). The only known locality at present. 



Named in honour of Mr. Thomas Michael Ohalker, Oare- 

 taker of Wombeyan Oaves. 



Affinities. 



It belongs to the series with the funicle twice encircling 

 the seed, and hence it is related to A. retinodes Schlecht., 

 and A. rubida A. Ounn. 



1. With A. retinodes Schlecht. The phyllodes are very 

 different, being linear lanceolate and much longer; the 

 funicles are not dissimilar; the flowers are somewhat 

 similar, but usually hexamerous in A. retinodes, while some- 

 times pentamerous. 



2. With A. rubida A.Ounn. It has resemblances in regard 

 to the funicle and arillus. It also agrees in the truncate 

 calyx and smooth pistil, but the foliage of the two species 

 is very different. 



3. With A. amcena Wendl. A. amcena differs in the 

 flower, the calyx-lobes separating to the base in the pistil 

 which is hairy, and in the seed with encircling funicle more 

 than twice round, but this is a somewhat variable character. 



The phyllode of A. amcena has two or three very prominent 

 glands and is of a very different shape to that of the new 

 species. 



