ZOOLOGY AND BOTANY, MIUROSGOPY, ETC. 311 



the cause of a troublesome disease of leaves of the coffee plant ; it also 

 attacks the twigs and the berries. It has been proved by methods of 

 cross inoculation that it is the same species as ColJetotrichiim theohromi- 

 coJum. The perfect fruiting stage is Glomerella cingulata. Another 

 species, (JoUetotrklmm Gamellise, grows on tea ; though morphologically 

 similar to the above species, inoculations were unsuccessful on coffee 

 leaves. The same type of fungus has been found on some garden 

 plants and on cotton. Plwma is also a frequent parasite on coffee 

 branches, etc. The writer concludes from his experiments that the 

 spores are introduced into the softer tissues of the plant, by the Yariated 

 Bug. Surface inoculations were singularly ineffective. A. L. S. 



Phoma sp. parasitic on Cupressus in South Africa. — A. M. 

 BoTTOMLEY {8. African Joiirn. Sci., 1919, 15, 613-7; see also Bull. 

 Agric. TnielJ. PI. Diseases, Rome, 1920, 11, 401). A severe disease of 

 young plants caused by the Phoma was first noticed in March 1915. 

 Other fungi had invaded the leaves, but culture and other experiments 

 identified a Phoma of unusual shape and large fusiform spores as the 

 causal organism. The disease is recognizable by the discoloration, 

 withering and death of the leaves and stems attacked. Wounded 

 plants were easily infected, unwounded plants with difficulty, and only 

 after some weeks. Moisture is essential for the development of the 

 disease. Spraying with Bordeaux mixture is recommended. A. L. S. 



Mildew Disease on Prunus Laurocerasus. — Ed. Fischer {AtU 

 Soc. Elev. Sci. Nat. (1919), 1920, 112). The tree on which the fungus 

 (Podosjjhsera Oxijacantkse) was detected had been destroyed by frost 

 down to the base during the winter. New shoots made their appear- 

 ance, and the young leaves were attacked and deformed by the mildew, 

 while the older leaves seemed to be immune. A. L. S. 



Pier Andrea Saccardo. — G. B. Traverso {Nuovo Oiorn. Bot. Itah, 

 1920, 27, 89-7-4). In an address to the Italian Botanical Society, 

 Traverso gives a sketch of the life and labours of the renowned 

 mycologist, P. A. Saccardo, who was born in 1<S45 and died iuFeln-uary 

 1920. A love of plants was shown by him at the early age of thirteen, 

 when he had already collected a herbarium of 230 plants. His first 

 contribution to Mycology was the Mycologise venetae specimen in 1873, a 

 list of fungi found in the neighbourhood of Venice. From that time 

 onwards Mycology became his chief study. Traverso touches on the 

 various aspects of his work, and on the great service he rendered to the 

 science. A list of his published works occupies nearly seventeen 

 closely printed pages of this memoir. A. L. S. 



Lichens. 



Lichen Life-cycle.— -A. H. Church {Joum. Bot., 1921, 69, 139-45, 

 197-202). Dr. Church has resumed his study of the lichen plant, and 

 in this contribution he resumes his previous views on the general 

 development of lichens, then discusses Basidiolichens with reference to 

 their symbiotic or intrusive algge. These instances he concludes " grade 



