NOTES ON ACACIA. 177 



swollen near the tips, doubtless owing to insect action. I 

 have not seen the specimen so drawn, and it is well to 

 note that swellings in A. briptycha are quite accidental. 



Emphasis should be laid on the fact that the phyllodes 

 of A. tripbychciRre rigid and pungent. It is not correct to 

 say (as in B.F1. ii, 337), that they are flexuose, but Drum- 

 mond's (4th) No. 132 and (5th) No. 5, are, and these are 

 A. subflexuosa n. sp., as already stated. 



The head of flowers in A. iriptycha may be up to 30. 

 The sepals have the upper portions hairy. The pods are 

 shortly stipitate, 5-6 cm. long, and 2 mm. broad, the seeds 

 longitudinally disposed, the valves raised between the 

 seeds, the margins of the valves slightly thickened. Funicle 

 very short and expanded into a narrow arillus obliquely 

 embracing the seed. 



Synonym. 

 A. triptycha F.v.M. var. pun gens Pritzel, in Engler's 

 Bot. Jahrb., xxxv, 293. In the Stirling district, near the 

 Kalgan River (D. 4596). I have not seen D. 4596, but I 

 collected near the Kalgan River, and my specimens are 

 close to No. 3 (Oldfleld) from the same locality, and Pritzers 

 description of his supposed variety applies to them well. 



Range (of the typical form). 

 It appears to be confined to Western Australia, — in its 

 typical form — between King George's Sound and Esperance 

 Bay. 



Typical form. — "Spreading scrub, 3 feet. Sand Plains, 

 Kalgan River " (Oldfleld). Co- type. Small pungent shrub, 

 Kalgan Plains (J.H.M.) Esperance Bay (Herb. Melb.) 



Mullewa near Geraldton (0. R. P. Andrews, Aug. 1903, 

 through W. V. Fitzgerald, as A. leptoneura Benth.). Has 

 long curved tips to the apices which are golden-hairy. This 

 plant, a fragment in flower only, may, in the absence of 



L— December 3, 1919. 



