720 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



FROM CURRENT HORTICULTURAL PERIODICALS. 



Acacia arabica, on the Medical Value of. By Gaston Thierry 

 (Not. Ednig. Bot. Berlin, vol. iii. (1902), p. 197). — Gaston Thierry gives a 

 short note recording the use of Acacia arabica, Willd., as a specific in 

 dysentery. — H. M, IT. 



Aeanthaceae from Tropical Africa. By S. Le M. Moore {Journ. 

 Bot. 477, pp. 305-309 ; 9 1902). — Description of Petalidium Gossiccileri 

 and P. tomentosum, new species, collected at Mossamedes by John Goss- 

 weiler; P. cirrhiferwm from the Cunene-Zambesi region; Barleria 

 buddleioides and Justicia linarioides from South- West Africa, collected 

 by H. Baum, from specimens in the British Museum Herbarium. 



African Flora XXIII. By A. Engler (Engl. Bot. Jdhrb. vol. xxxii. 

 1902, pp. 53-189; 13/5/1902).— Includes the following papers :— A 

 description by R. Pilger of a new genus of Grasses, Acritochcete, from 

 Mt. Kilimanjaro. The genus is allied to Panicum. A systematic account 

 of the Alga 1 , especially those constituting the plankton, from Lake 

 Nyassa and neighbourhood, by W. Schmidle. The collections were made 

 by Dr. Fulleborn. A number of new forms are described, and the paper 

 is illustrated by two plates. The description of new genera and species 

 in the orders Liliacece, CrucifercB, Scytopctalacca>, Linacc(V, Pcdaliaccce, 

 Campanulaccce, Butacece, and Simarubacece, by Engler, and Bignoniacece 

 by E. Hallier ; a description by various authors of new species from 

 Benguella from the collections of Antunes and Dekindt ; a conspectus of 

 the species of the section Eustrophanthus of the genus Strophanthus, by 

 E. Gilg ; an account of the East African species of Landolphia, by 

 Walter Basse (with plate) ; an account of the species of Strychnos 

 collected by W. Busse in German East Africa, by E. Gilg and W. 

 Busse ; and a description of the cultivated forms of Andropogon Sorghum 

 from German East Africa and Togo, by W. Busse and R. Pilger. 



Agaricus campestris : Germination of the Spores &c. By Mar- 

 garet C. Ferguson {U.S.A. Dep. Agri. (Bur. PL Ind.) Bull. 16 ; 3 plates). 

 — States that there is a large and growing consumption of Mushrooms 

 for food in the States ; and that last year about 3,000,000 lb. of canned 

 Mushrooms were imported, as well as all the spawn used. In order that 

 all spawn should be produced at home, and the Mushrooms grown, the 

 production of pure spawn of high vitality is essential. To this end many 

 difficult problems required to be solved, to which this paper is dedicated 

 as a basis for future work, having for its object the growing of pure virgin 

 spawn. It records what has been done as an introduction, the methods 



G. S. B. 



A. B. B. 



