ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
87 
Notes on New or Rare Species of Rusts. — W. H. Long (Bot. 
Gaz., 1921, 72 (39-44). The author has described four new species : 
Gymnosporangium on a Cupressus from Arizona, and three species of 
Ravenelia on Leguminosse from Texas, and also notes on two other 
j Raven el ise. He found that in June, 1920, very few of these rusts were 
to be found in Texas in localities where hundreds of infected plants 
were present in May and November of 1916. He concludes that certain 
seasons must be more favourable than others for the propagation and 
dissemination of these rusts. A. L. S. 
Germination of Jlciospores, Urediniospores, and Teliospores of 
Puccinia coronata. — G. R Hoerner (Bot. Gaz ., 1921, 72, 173-7). 
The crown-rust of oats is important economically, and the problem of 
its dissemination and continuance has attracted numerous workers. 
Hoerner has found that aeciospores on Rhamnus remain viable in the 
herbarium 167 days from the date of collection. The uredospores 
lasted about half the time ; exposed to light they lost viability in 23 
days, while in the dark they were capable of germination after 79 days. 
Teleutospores did not germinate without overwintering. A. L. S. 
Graphiola and Farysia. — Ed. Fischer (Ann. Mycol ., 1920, 18, 
188-97, 7 figs.). Fischer has subjected these two genera to critical 
examination, and has discussed fully their systematic position. He 
establishes a family, Graphiolaceae, with two genera, Graphiola Poit. and 
Stylina Sydow, which differ as regards peridium and spores. He gives 
further the results of an examination of Farysia. These genera have 
been associated with the Ustilagineae. Fischer does not think our 
knowledge of these fungi is complete enough to make a decision possible 
as to their true systematic position. A. L. S. 
Notes on Uredinese. — H. Sydow (Ann. Mycol., 1921, 19, 161-75). 
The author passes in review the old-established genera of the Uredinese. 
He finds that a number of species in these genera show divergent 
generic characters, and he .proposes new genera for their inclusion. He 
establishes and describes nineteen genera in addition to those previously 
classified. A. L. S. 
Present-day Knowledge of the Distribution of the Anther Smut 
(Ustilago violacea). — Hermann Zillig (Ann. Mycol., 1920, 18, 
136-53). This smut is confined to the Caryophyllacese, and is found 
over all the world where these plants inhabit. The one exception is 
Australia, where the Silenese are the chief hosts of the fungus. The 
author gives all the references to localities that he has been able to 
determine, and also a full bibliography with a list of the herbaria 
examined. A. L. S. 
Mycological Contributions to the Flora of Moravia and Silesia. 
— J. Weese (Ann. Mycol., 1920, 18, 161-77). The author gives an 
account of collections made in the region, chiefly by Niessl. The fungi 
listed are all micro-fungi, many of which are fully described, and 
valuable biological and literary notes are added. A. L. S. 
