C. H. Ostenfeld: Contributions to West Australian Botany. II. 15 



Derby, specimens with young buds only (No. 1182, 7. Nov. 

 1914). The host plant was not noted. The specimens have un- 

 usually broad and short leaves (broadly elliptic). 



Chenopodiacese. 



Dr. Ove Paulsen is publishing a separate paper on my Cheno- 

 podiacese from West Australia, see p. 56. 



Amarantaceæ. 



Ptilotus villosiflorus F. v. Müll., Fragm. Phytogr. Austr. Ill (1863) 

 125; Benth. FL Austr. V (1870) 245; E. Gheel, in K. Sv. Vet. Akad. 

 Handl. 52, No. 10 (1916) 7. 



Port Hed land, near the shore (3. Nov. 1914). 



Both at Port Hedland and, south of the Tropic of Capricorn, 

 at Carnarvon and Geraldton a small Ptilotus was common in the 

 dune depressions near the shore. It agrees well with the above 

 quoted species which E. Cheel (1. c.) records from Port Hedland. 

 But I think that the Ptilotus species of the warmer parts of 

 Australia require a thorough revision. 



Gomphrena pusilla Benth. Fl. Austr. V (1870) 256. 



Nullagine Distr. (I. T. Tunney, June 1901, ex herb. Mus. 

 Perth). . 



From the botanical collection of the Museum at Perth I ob- 

 tained — amongst several herbarium sheets from the southwestern 

 part of W. A. — an undetermined Gomphrena ("Ptilotus"), which 

 I refer to G. pusilla Benth., a species which comes near to G. Mait- 

 landi F. v. Müller. 



Nyctaginaceæ. 



Boerhaavia diffusa L., Fl. Zeylan. (1747) 4; Benth., Fl. Austr. 

 V (1870) 277, ex parte. 



Derby, on the jetty, a prostrate white-flowered weed (No. 

 1170, 7. Nov. 1914). 



The specimens collected agree well with specimens in our 

 herbarium in Copenhagen named B. diffusa L. by Heimerl, the 

 authority on Xyclaginaceæ. They differ in some points (of minor 

 importance ?) from specimens named B. procumbens Roxb. More 

 widely different (e. g. by the much longer pedicels) is B. mutabilis 

 R. Br., if Preiss's No. 2389 from Swan River is to be taken as 

 typical for that species. 



