176 J. H. MAIDEN. 



interesting country, as on the 17th Mr. Helms found ten,, 

 and on the 18th fifteen plants new to him. 



Affinities. 

 With A. Bynoeana Benth. This is its closest affinity, 

 and it is worthy of note that Mr. R. Helms collected both 

 species at Oamp 42. The new species has, however, 2- 

 nerved phyllodia in contradistinction to the five nerves of 

 A. Bynoeana, longer and quite glabrous peduncles, more 

 deeply divided calyx-lobes, and a hoary ovary. The bracts 

 are spathulate in A. Bynoeana. 



For some notes on A. Bynoeana see my paper in this 

 Journ, xlix, p, 501 (1915), and that by J. M. Black, Journ. 

 Roy. Soc. S.A., xlii, 45 (1918). 



A. Helmsiana is placed in the section Plurinerves of 

 Calamiformes, because of its obvious affinity to A. Bynoeana? 

 but it has only two nerves. The sections require revision. 



A. TRIPTYCHA F.V.M. 



This is briefly and imperfectly described in B.F1. ii, 337, 

 and instead of stating (on Mueller's behalf) what the type 

 really is, four specimens are quoted, viz.:— (1) Drummond 

 (4th Coll.?) No. 132; (2) 5th Coll. No. 5; (3) Kalgan River, 

 Oldfield; (4) Termination Rock, Maxwell. 



Through the kindness of Prof. Ewart I have seen, from 

 Mueller's Herbarium, No. (1), This is not A. triptyeha 

 and is the same as No. (2) which I received from the 

 British Museum many years ago. It is a new species, 

 which I have named A. subflexuosa. No. (3) is A. triptyeha 

 typica. No. (4) is A. triptyeha with the phyllodes a little 

 broader than No. 3. He also lent me "Cape Arid, W.A. 

 (John Forrest, 1870)" which is similar to No. 3. 



No. 3 is very well figured in Mueller's "Iconography " 

 plate of A. triptyeha, showing that it satisfied his idea of 

 his own species. The plate, however, shows phyllodia 



