ZOOLOGY AND BOTANY, MICEOSCOPY, ETC. 209 



Ribe^ from eight different States. Clinton determined it on eight 

 different hosts. Puccinia Ribis is uncommon with a northern distri- 

 bution ; in the Herbaria it occurred only once. A. L. S. 



Behaviour of Telia of Puccinia graminis in the South. — H. R. 

 Rosen {MycoJouia, 1921, 13, 111-3). The writer made observations on 

 the teleutospores of this fungus on Elymus australis with a view to 

 studying the overwintering of the rust. In the North the alternate 

 host, the barberry, carries on the infection, but it is of rare occurrence 

 in the South. Rosen proved from cultures and observations that if the 

 teleutospores were fully developed they were capable of infecting the 

 following spring. A. L. S. 



Preliminary List of the Uredinales of California. — Walter C. 

 Blasdale {Univ. Calif. Publications in Botany, 1919, 7, 101-57). In 

 the present paper the writer sketches previous work done on the group 

 in California, and gives a short account of the development of the 

 Uredinales. In the list, which includes 237 species, the genera are 

 arranged in alphabetical order. Most of the species have been already 

 described ; a few are new to science. A. L. S. 



Rust of Onion followed by a Secondary Parasite.— J. C. Walker 

 {Phytopathologist, 1921, 11, 87-90, 2 tigs.). The rust, an gecidial stage, 

 was diagnosed as probably Puccinia Asparagi. The secondary organism 

 was Botrytis sp. ; it formed lesions round the rust pustules, and finally 

 girdled the plants. Experiments showed that the fungus gi'ew only as 

 a secondary organism ; no results followed direct inoculation of the 

 onion on areas unaffected by the rust. A. L. S. 



Early Development of Inocybe.— Gertrude E. Douglas {Bot. 

 Gaz., 1920, 70, 211-20, 5 pis.). The WTiter found that the basidiocarps 

 developed from young buttons of fundamental tissue, the stem being 

 formed by progressive growth of the other tissues later. The gills 

 developed as in other Agaricacea3 (not of the Amanita type). A. L. S. 



Polyporous dryadeus on Conifers in North-West America. — J. R. 

 Weir {Phytopathologist, 1921, 11, 99). This fungus is the cause of a 

 well-known heart-rot in various trees, especially oaks and poplars, and 

 has also been found at the base and on the roots of conifers. Collections 

 of the funous have been made in a number of States. A. L. S. 



'&' 



Clitocybe sudorifica as a Poisonous Mushroom. — J. W. Roberts 

 {Mycologia, 1921, 13, 42-4). The above fungus has been determined 

 as Clitocybe dealbata ; morphologically it is exactly similar. Specimens 

 were collected at Washington and were cooked and eaten, with very 

 alarming results. It has been collected in various localities, and all the 

 American authorities are agreed in pronouncing it decidedly sudorific 

 and unwholesome. A. L. S. 



New Species of Exobasidium.— J. W. Hotson {Fhytopathol agist, 



1921, 11, 106). The fungus attacks the young branches of Vaccinium 



jmrvifolium, gaining access by some wound. The stem is slightly hj per- 



