570 Pflanzenkrankheiten. — Lichenes. — ßrj^ophyten. 



fruittrees are destroyed bj'^ Cancer every year; the fungus mostly 

 appears in the conidial stage and is chiefly to be found on younger 

 branches, most likely because these have not been able to ripen com- 

 pletely before the beginning of the autumnal frost. In Seeland 

 and the other isles, where the number of sunny days is larger and 

 the autumn warmer, cancer is practically found on those fruittrees 

 only, planted in compact, moist, badly drained soil, and it appears 

 in its ascus-stage. 



As a remedy against Fusicladiuni and a number of different 

 diseases, caused by fungi and by insects as well, a spraying of 

 trees and bushes in winter with a Solution of cupper-sulphat (So/g) 

 or lime-sulphur according to the American method is to be recom- 

 mended. 



Of rarer parasitic fungi is to be mentioned Plasinopara viticola, 

 which, during the latest years only, has appeared in a few places 

 in Den mark, and Coniothyriiini Wernsdorfßae, Uromyces caryo- 

 phyllinus and Fusarium Dianthi, which was never before found in 

 this country. 



A curious biological circumstance is shown by Mycosphaerella 

 fragariae, this fungus only attacking the hermaphrodite strawbery 

 plants, but never the female plants of the same species. 



J. Lind (Copenhagen). 



Deichmann Branth, J. S., Soredium, Lepra, Isidiu m. (Bot. 

 Tidskr. XXIX. p. 166-169. Copenhagen, April 1909.) 



Some observations concerning the various asexual ways of pro- 

 pagation, which are to be found at the lichens. 



J. Lind (Copenhagen). 



Hulting, I., Lichenes nonnuUi Scandinaviae. IV. (Botaniska 

 Notiser p. 303-306. 1910.) 



A list of rare lichens, found by the author and others in 

 Scandinavia. The three preceeding sections of the same list are 

 to be found in the "Botaniska Notiser" for 1891, 92 and 97. A new 

 species: Lecidea ntargaritella is described, it comes close \.o Lecidea 

 alhohyalina Nyl. J. Lind (Copenhagen). 



Malme, G. O., Parmelia pertusa (Schrank) Schaer. funnen i 

 Södermanland. [Parmelia pertusa in Södermanland gefun- 

 den]. (Svensk. botan. Tidskr. IV. p. (92) -(94). Stockholm, 25/1 1 . 1910.) 



The Said liehen, hitherto found at few places in Sweden on 

 rocks only, was found by the author on the trunks of Abius. 



J. Lind (Copenhagen). 



Evans, A. W., Notes on New England Hepaticae. VIII.( Rhodora. 

 XII. p. 193—204. October, 1910). 



According to the author: "The additions made to the Hepatic 

 flora of New England during the past year include 2 Ricciaceae, 

 the rare Lophosia Kaurini, and 2 species of Frullania. All of these 

 are discussed in the present paper. Another species, Pedinophyllum 

 interruptum, although found in New England by Oakes many 

 years ago and cited by Austin and Underwood, is here recorded 

 for the first time from a definite New England locality. Attention 

 is also called to 3 species ofLo/)Ä05'/a which are variously interpreted 



