650 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Lindrotk describes also the Uromyces of the same natural order and 

 the isolated spore forms that have been found. Only one Cce,oma is 

 recorded and that from S. America. He discusses at some length his 

 reasons for the above grouping and the biological questions raised in 

 connection with the work. He gives a full bibliography with an index 

 of host plants and parasites. 



In another communication Lindroth * describes some Uredineae 

 that are found on species of Composita3. He gives an account of several 

 Puccinia,, Uromyces Mulgedii and JEcidium Lactucinum. He also writes 

 at length on Puccinia Kamtschatka Anders. The fungus was first 

 detected on roses at Simla by Barclay, and named by him P. Rosce, 

 but as that name was already appropriated for another species the latter 

 name must be adopted. 



P. and H. Sydowf have issued a third part of their monograph of 

 Uredineaa. They are still engaged on the genus Puccinia, and they 

 deal with a considerable number of natural orders of host plants includ- 

 ing the remaining forms on Umbelliferae and the species occurring on 

 Kosacese, Malvaceae, Violaceae, Cruciferas, Polygonaceae, &c. Some of 

 the species are published for the first time. 



Bornetina Corium.J — L. Mangin and P. Viala give further details 

 on the structure and growth of this fungus which causes the root disease 

 of the vine known as phthiriose of the vine. They conclude tkat its 

 affinities place it between tke Ustilagineaa and the Basidiomycetes, and 

 that it represents a new type, that of the Bornetineas. 



The authors § have grown the fungus in a variety of culture media 

 and find that it varies very considerably : not only the mycelium, but 

 the spores are affected by the substances on which they have grown. 



Uromyces of Lupins. || — P. Dietel has examined the different forms 

 of Uromyces found on species of Lupin, and has classified them in 

 systematic order. He has renamed a species from America, designated 

 as identical with Uromyces Gmista-tindorw. He considers it to be 

 distinct and calls it U. occidentalis. Another American species U. 

 tomentellus he places under U. Lvpinus Berk, and Curt. 



Nomenclature of Uredinese.^f — P. Magnus discusses the names given 

 in Yon Martens' Prodromus Flora, Mosquensis to various rusts found on 

 species of Compositas. 



Tilletia abscondita Syd. sp. n.** — This fungus, described by H. 

 and P. Sydow, occurs in the fruit capsules of Anthoceros. Similar 

 spores had been noted in the sporogonia of Sphagnum, and had been 

 discovered after considerable research to be fungus spores. The species 

 found in Anthoceros is very similar to that of the Sphagnum, but the 

 spores are much larger and have a thick epispore. No one has succeeded 

 as yet in germinating the fungus spores found in mosses. 



* Tom. cit., xx. No. 9 (1901) 29 pp. (1 pi.). 

 f Monographia Uredinearum, i. Fasc. iii. pp. 885-592 (10 pis.). 

 X Coniptes Rendus, cxxxvi. (1903) pp. 1699-701. 

 § Tom. cit., cxxxvii. (1903) pp. 139-41. 

 || Hedwigia, xlii. (1903) Beibl., pp. 75-99. 



i Oest. bot. Zeitschr., Iii. (1902) pp. 428-32. and 490-2. See also Centralbl. 

 Bakt., x. (1903) pp. 265-6. ** Ann. Mvcol., i. (1903) pp. 174-6. 



