284 Floristik, Geographie, Systematik etc. 



PalL, U. hollandica Mill., U. campestris L., and U. sativa Mill. (= 

 U. suberosa Fl. D.) are found cultivated only. Ove Paulsen. 



Osten feld, C. H., Stray Notes from the Tropical West 

 Australia. Contributions to West Australian Botany. 

 IL (Dansk Bot. Arkiv. IL N° 8. p. 1—29, with illustr. and 3 plates. 

 1918.) 



The author visited in November 1914 a few places on the N.W. 

 coast of West Australia, and in the present paper he gives 

 some general remarks on the Vegetation, which is very imper- 

 fectly known. The predominant plant-formations are the mangrove, 

 the sandy-shore, the salt-pan, the sand-dune and the savannah 

 forest formations, of which sketches are given accompanied by 

 photographs. The second part of the paper contains a list of the 

 species collected with several informations and additional descrip- 

 tions of more species. The recently described Adansonia Stanbu- 

 ryana Hochr. is shown to be a glabrous form only of A. Gregorii F. 

 v. M., of which characteristic photographs are reproduced on the 

 plates. Abutüon flavum and Frankenia ambita are described and 

 figured as new species. Carl Christensen. 



Osterhout, G. E., Additions to the flora of Colorado. (Bull. 

 Torrey Bot. Club. XL VI. p. 53—56. Feb. 1919.) 



Contains as new: Nuttallia hastata, Phacelia formosula, Oreoca- 

 rya monosperma, Mertensia Clokeyi, and Agoseris frondifera. 



Trelease. 



Osterhout, G. E.. A new Hymenopappus from Colorado. (Tor- 

 reya. XVIII. p. 90. May 1918.) 



H. polycephalus. Trelease. 



Pammel, L. H., Prickly lettuce. (Rhodora. XX. p. 180—181. 

 Oct. 1918.) 



Notes on the replacement of Lactuca Scariola integrata by the 

 lobed type of the species, as an American weed. Trelease. 



Paulsen, O., Chenopodiaceae from West Australia. In: C. H. 

 Ostenfeld, Contributions to West Australian Botany. 

 IL (Dansk Bot. Arkiv. IL N° 8. p. 56—66, with illustr. and plate. 

 1918.) 



A list of the 30 species collected by Prof. Osten feld in 1914. 

 Besides critical remarks to several species descriptions and figures 

 are given of the new species : Kochia Osten/ eldii, Arthrocnemiam 

 Benthami and A.(?) pruinosum. Salicornia leiostachya Benth. is 

 transferred to Arthrocnemium as A. leiostachyum (Benth.) comb. nov. 



Carl Christensen. 



Payson, E. B., Notes on certain Cruciferae. (Ann. Mo. Bot. 

 Gard. V. p. 143—151. Apr. 1918.) 



Contains as new: Physaria didymocarpa australis, P. OsterJioutii, 

 Dithyrea Wisliseni Palmeri, D. Wisliseni Griffithsii (D. Griffithsii 



