ZOOLOGY AND BOTANY, MICROSCOPY, ETC, 425 



described 102 different forms, not all of them injnrious and some of 

 them on invohicres of the nuts, etc. A number of species are new to 

 science ; all of them have been carefully described, and the less known 

 species figured. A. L. S. 



Mycolog'ical Notes. — Martino Savelli {Bull. Soc. Bot. Ifal., 

 1917, 1, 15-111). The author discusses first the systematic position of 

 a Puccinia collected in the Caucasus on Iris Jiavescens, and determined 

 at the time as P. TricUs. Careful examination of the specimen and of 

 allied species have induced him to make a new species, P. caucaska. 



In a second paper he gives an account of the Cystopodacese and 

 Peronosporacese of Tuscany. Most of the species belonged to the 

 genus Peronospora. A number of the species recorded are new to the 

 district. A. L. S. 



Californian Bees. — J. Eamsbottom {Trans. Brit. UltjcoJ. Soc, 1921, 

 7, 86-8). This name and other designations, such as Palestine Bees, 

 Wine Bees, etc., are given to the organism which forms the ginger-beer 

 plant. It consists of solid white lumps about the size of a pea. The 

 lumps are composed of a yeast, Scrrharomyrespijriforniis, and a bacterium. 

 Bacterium vermiforme, vrhich live in symbiotic unison and together 

 cause the fermentation of ginger beer. A. L. S. 



Inheritance of Disease-resistance in Plants. - F. T. Brooks 

 {Trans. Brit. Mycol. Soc, 1921, 7, 71-8). Brooks discusses the inheri- 

 tance of disease according to Mendel's Law. He gives the results of 

 workers as regards plants, and he gives various theories as to the means 

 whereby plants secure immunity from the attacks of parasites. The 

 problem has been worked out most completely in the case of yellow 

 rust of wheat, the resistance of the wheat being a Mendelian recessive 

 character. A. L. S. 



Audibility of the Spore Discharg-e in Otidea leporina. — R. B. 

 Johnstone {Trans. Brit. Mycol. Soc, 1921, 7, 86). The spores were 

 found to be ejected from the asci with a hissing sound which was 

 distinctly heard 6 ft. away. The plants had been collected and placed 

 in a box. When the box was opened twenty-four hours later the 

 discharge became audible. A. L. S. 



' to^ 



British Mycology. — J. Ramsbottom {Trans. Brit. Mycol. Soc, 

 1921, 7, 1-12). An account is given of the annual foray for 1920 

 which took place at Minehead. During the meeting various matters 

 were discussed. The President, ]\Ir. T. Petch, gave an account of work 

 done by S. R. Bose on Indian Polyporacese. J. Ramsbottom described 

 the occurrence of mycorhiza in orchids ; he also exhibited pieces of 

 canvas attacked by fungi. The various outings are described and the 

 more important finds are noted. Finally, a list is printed of all the 

 fungi collected. A. L. S. 



Notes on New or Rare British Fungi. — Malcolm Wilson 

 {Trans. Brit. Mycol. Soc, 1921, 7, 79-85). Most of the species of 

 micro-fungi here described are new to Britain. A number of Uredinete 

 are included in the list. The fungi are all from Scotland. A. L. S. 



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