78 SUMMARY OF CUERENT RESEARCHES RELATING TO 



are not the source of infection. It is possible, however, that the uredo- 

 spores may persist during the winter in the more southerly regions of 

 Europe, and that the disease may spread towards the north ; or Eriks- 

 son's theory of some mycoplasma or disease inherent in the plant may 

 have to be considered. 



P. Dietel * describes a new genus of Uredinere from India, Chnoo- 

 psora, a member of the Melampsoraceae. In honour of its finder, the 

 author names it C. Butleri. The ascidia are unknown ; the teleutosori 

 are widely diffused over the under-surface of the leaves of Adhatoda 

 vesica ; they are developed under the epidermis and are usually one- 

 celled. They do not all develop simultaneously. 



H. and P. Sydow with E. J. Butler t publish a first list of Fungi from 

 different districts of India. This first instalment includes only Ustil- 

 aginetfi and Uredineje. Descriptions and localities are given of many of 

 the forms and a large number are new. 



E. W. D. Holway % has issued Part II. of the first volume of North 

 American IJredinete, containing the descriptions of thirty-eight species 

 following the natural orders of the host-plants. 



S. Kusano§ in notes on Japanese Fungi records two new Uredinese, 

 Uromyces on CJadastris and C'ceoma on Prumis. The latter attacks the 

 twigs at an early stage and causes considerable deformation of leaves and 

 flower buds. 



T. Miyake || has made a study of the Puccinm parasitic on species 

 of Umbelliferffi in Japan. He records in all eighteen species, several of 

 them only found in Japan. 



J. C. Arthur IF continues his paper on a "New classification of the 

 Uredinales." His method involves a knowledge of the life-history of 

 the species, including the number of spore forms, and the structure of 

 the sorus. Hitherto, any form with a two-celled teleutospore has been 

 called a Piiccinia ; under the new system, all the life stages must be 

 considered before the form is placed with its proper genus. The 

 author allows that his method is somewhat lacking in simplicity. 



New Fungus of Cereals.** — J. E. Jungner-Posen found on rye 

 that had been attacked by eel-worms, white pustules of mycelium that in 

 time turned to sclerotia, small reddish-brown bodies the size of a clove 

 seed. In four to six weeks after the collection of the sclerotia, small 

 agarics were developed which proved to belong to a new species named 

 by the author Psilocyhe Henningsii. A full diagnosis of the agaric is 

 given and a further growth of mycelium and conidia on the diseased 

 leaves is described. Jungner-Posen was unable to determine the con- 

 nections of the latter, if any, with the sclerotial fungus. 



* Ann. Mycol., v. (1996) pp. 421-3 (1 fig.). t Tom. cit., pp. 424-45. 



X North American Uredinese, i. part 2, Minneapolis, 1906). See also Ann. 

 Mycol., V. (1906) p. 454. 



§ Bot. Mag. Tokyo, xix. (1905) pp. 83-5 ; xx. (1906) pp. 47-57 (2 pis.). See also 

 Ann. Mycol., v. (1906) pp. 455-6. 



II Journ. Sapporo Agric. Coll., ii. (1906) pp. 97-132 (1 pi.). See also Ann. 

 Mycol., V. (1906) pp. 457-8. 



5 Journ. MvcoL, xii. (1906) pp. 188-91. 

 *• Zeitschr. Pflanzenkr., xvi. (1906) pp. 131-5 (1 pi.). 



