ZOOLOGY AND BOTANY, MIGROSCOrY', ETC. 419 



is a new record for the British Isles. The third fungus, Fusicoccum 

 bac/llare, grows on the bark, while the slightly different variety acuvm 

 occurs on leaves. A. L. S. 



New Species of Dematiee.— A. Duvernoy and R. Maire {Bull. 

 Soc. MyroL France, 1920, 36, 86-9, 1 fig.). The new fungus Endo- 

 phragmia mirabilis is distinguished by large pseudo-endogenous conidia 

 30-35 yn X 15-19 fx ; they are three-septate and brown, with the top cell 

 somewhat paler. The genus recalls Sporochisma, but the collai round 

 the conidiophore is of late development. It grew on dead branches of 

 Carpinus Betulus, in the Jura. The brown mycelium penetrates the 

 wood, and along with the spreading hyphse are numerous black 

 stromata which may be connected w^ith it. A. L. S. 



New Genus of Adelomycetes. — L. Man(;in and P. Vincens 

 {Bi/U. Soc. Ml/col. Fn/nre, 1920, 36, 89-97, 7 figs.). The writers have 

 adopted the term Adelomycetes to replace Fungi Imperfecti {ftdelos, 

 uncertain). The new fungus Spirospora Castanese grew on decaying 

 chestnuts. It is allied to Mycogone. In all the cultures there was no 

 formation of ascosporus fruits. The conidia are formed from a terminal 

 spiral. There are also accessory forms of conidia of Mycogone and 

 Torula form. A. L. S. 



Interesting- Tilletia on Aira capillaris. — A. Trotter {Bull. Soc. 

 Bot. ItaL, 1915, 7, 74-9, 1 figs.). The author gives an account of the 

 fungus which had attacked all the flowers on three heads of Aira, all that 

 were collected. He discusses the systematic positions of the fungus, 

 and decides that it is identical with Tilletia seimrata J. Kunze. 



A. L. S. 



Ustilaginese of Etruria. — Martino Savelli {Ball. Soc. Bot. Ital., 

 1916, 2, 35-11). Savelli has listed thirty-one species belonging to 

 Ustilagineaj and Tilletieae. He appends habitat and locality, with 

 occasional notes. A. L. S. 



Life-history and Morphology of Urocystis cepulae. — T. White- 

 head {Trans. Brit. Jlycol. Soc, 1921, 7, 65-71, 1 pi.). This fungus 

 is the cause of a destructive smut disease of onions which has recently 

 appeared in this country. Chlamydospores are formed in masses, each 

 one consisting of one, rarely two, fertile cells surrounded by sterile 

 vesicles. The spores give rise to promycelia which develop sporidia 

 laterally. The sporidia do not conjugate ; they may bud repeatedly. 

 Infection takes place probably by the root hairs in the collar region of 

 the host. The fungus within the host is mostly confined to the meso- 

 phyll between the vascular bundles. A. L. S. 



Cytology of Tilletia Tritici.— Jehangir Fardoxji Dastur {Ann. 

 Bot., 192J, 35, 399-407, 1 pi., 9 figs.). The author has traced the 

 behaviour of the nucleus through all the stages of germination. The 

 nucleus of the spore passes unchanged into the promycelium : there it 

 divides until eight nuclei are formed. The sporidia also are usually eight, 

 though they vary from four to sixteen. Conjugation takes place between 

 the sporidia either while they are still attached to the promycelium or 



