ZOOLOGY AND BOTANY, MICROSCOPY, ETC. H2." 



Nummularia punctulata, and that the genus Diatrypeopsis is redundant. 



The one feature — the colourless spores — that placed it near to Diatrype 

 is not a constant character: they have a greenish tinge, becoming 

 brownish-grey on their escape from the ascus. 



J. M. Reade,* working at Cornell University, has followed the de- 

 velopment of a number of Sclerotiniae, and he gives full diagnoses. In 

 all cases where followed out the conidial stage is a form of Monilia, 

 which in some cases was the only form known before these researches. 

 The sclerotia were formed in mummified fruits, and in some cases on the 

 twigs and leaves of the host-plant. 



Spotting of Bamboos.f — S. Kawamura gives an account of the 

 different kinds of bamboos that are to be found in Japan, some of which 

 are distinguished by dark rings and spots on the stems. This he finds 

 is due to a fungus, Myostria fusispora g. et sp. n. The central part of 

 the dark spots is occupied by a cushion-like mycelium in which is 

 imbedded a pyriform perithecium with fusiform colourless spores. 

 Inoculation experiments were unsuccessful, and Kawamura concluded 

 that the fungus could only attack injured areas of the steins. 



Yeast as a Fermentative Agent.f — F. G. Kohl has published an 

 exhaustive treatise on these unicellular fungi that are used to produce 

 fermentation. He discusses their physiological properties, and in the 

 chapter on fermentation he cites the cases in which filamentous fungi, 

 such as Mucor, PenicilUum, etc., have also been employed, these fungi 

 forming yeast torulations in the absence of air. An account is given of 

 alcoholic^fermentations and of the by-products formed. A new series of 

 observations includes a description of the methods employed in yeast 

 culture, spore formation, the morphological characters of the plants, and 

 a systematic revision of the various organisms. The book is well illus- 

 trated, and is supplied with a good index. 



Notes on GlceosporiumJ — J. Lincl has examined and described a 

 species growing on the leaves of ferns that had been variously classified 

 as G.filicinum Rostr. or as Exobasidium Brevieri Boud. From his own 

 observations he has placed it in a new genus of Protobasidiomycetes 

 that he has designated HerpoMsidium. The fungus develops in the 

 interior of the leaf, the mycelium spreading in the intercellular spaces, 

 and also forming coils in the cells of the host. At the stomata it passes 

 into the open and forms a white superficial felt from which arise 

 upright basidia clavate and uniseptate, each cell bearing a sterigma and 

 basidiospore. The fertile hypha branches lower down, and the branches 

 also act as basidia. Lind has also examined Glmosporium deformans on 

 willow catkins, and finds that it is a composite form comprehending 

 four distinct species. 



Research on Fungi Imperfecti.||— H. Klebahn continues his studies 

 in this field, and records his new results. Asteroma Padi on leaves of 



* Ann. MycoL, vi. (1908) pp. 109-15. 



t Joum. Coll. Sci. Imp. Univ. Tokyo, xxiii. (1907) pp. 1-11 (5 pis.). 



X Leipzig : Quelle and Merer (1908) viii. and 343 pp. pp. (S pis. and 59 figs.). 



§ Arkiv Botanik, vii. (1908) No. 8, 23 pp. (3 pis.). 



|| Zeitschr. Pflanzenkr., xviii. (1908) pp. 129-54 (2 pis.). 



Ort. 21st, 1908 -' '1' 



