ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 83 



to some 550, have been incorporated with the Mycological Herbarium, 

 Pretoria. The various families and genera are well represented, from 

 the Mjxomycetes, with six species, down to the Hyphomycetes, with four 

 different genera. The author mentions as of particular interest a species 

 •of Rodwaya and Woodiella ; the latter, named after the collector, is a 

 member of the Patellariaceaj. 



Notes on Uganda Fungi.*— T. D. Maitland and E. M. Wakefield 

 publish a long list of fungi, mainly collected by the former during two 

 years spent in the forests of Uganda. There are, in the introduction, 

 •copious notes and observations on the ecological features of the forest 

 lands, in which the rainfall is greater and the humidity higher than in 

 the surrounding country. The larger species are mainly saprophytes, 

 belonging to the more woody Agaricacea^ or to the Polyporaceae, etc. 

 A large number of microfungi are included in the list. 



Nigerian Fungi. Ill.f — The present contribution by E. M. Wake- 

 Held is based on collections by C. 0. Farquharson in South Nigeria 

 during the period 1914-16. Several species are new to science. One 

 species, Ustidina zonata, on diseased Hevea brasiliensis, has been 

 described as a rubber disease in the Malay States. A long account is 

 given of Monilia carbonaria, which appears very quickly on charred 

 wood ; no ascigerous form has been identified with certainty, but a note 

 is appended describing Melanospora eri/fhraea, which developed in a 

 •culture of Oospora gilva, which latter fungus may be the same as 

 Monilia carbonaria. 



Irish Fungi.l — R. Lloyd Praeger records the collection of several 

 aquatic fungi : Vibrissea truncorum in three feet of water at Lake 

 Brandon, and in one foot of water at Lough Dan, Wicklow, and else- 

 where. Mitrida phalloides grew on dead heather in several inches of 

 water near Hare's Gap, Mourne Mountains. 



The same writer also gives an account of a number of species of 

 Clavaria, and other unusual fungi collected in Co. Leitrim. One of 

 them, Otidea grandis, was the first record for Ireland. 



Rubber Disease.§ — A. Sharpies writes oh bark canker in Hevea 

 hrasiUensis, very largely due to Phytophthora Faberi. He describes the 

 results of several workers on canker disease, and quotes the opinion of 

 Dastur, that there are two species of Phytophthora causing bark-disease, 

 one identical with the pod-disease of Cacao, the other causing " Black- 

 thread Disease." 



In a second article he discusses the special significance of these 

 diseases for Malayan rubber. He thinks that there is serious danger of 

 bark-diseases spreading there. Fungus diseases are most dangerous 

 when there are large acreages under one crop, and the whole of the 

 Malay peninsula is planted with rubber-trees. 



* Kew Bull., No. 1 (1917) pp. 1-19. 



t Kew Bull, No. 3 (1917) pp. 105-11. 



X Irish Naturalist, xxvi. (1917) pp. 55-6. 



§ Kew Bull., No. 6 (1917) pp. 211-5 and 225-9. 



G 2 



