Varietäten, Descendenz, Hybriden. — Eumycetes. 377 



Schneider, K. C, Die Grundgesetze der Deszendenz- 

 theorie in ihrer Beziehung zum religiösen Stand- 

 punkt. (Herder, Freiburg i. Br. 8 U . 266 pp. 73 Abb. 1910.) 



Das Werk gliedert in zwei Teile. Im ersten Teil behandelt 

 Verf. unter vitalistischen Gesichtspunkten und in Form von vier 

 Vorträgen die folgenden Fragen: I. Das Anlagenproblem, II. Das 

 Substanzproblem, III. Das Anpassungsproblem (Darwin und das 

 Zweckproblem), IV. Das Abstammungsproblem. Der zweite wesent- 

 lich umfangreichere Teil, enthält in sehr grosser Zahl eingehende 

 Anmerkungen zu den Vorträgen, irisbesondere ausführliche Kriti- 

 ken und Darstellungen der wichtigsten Erfahrungen und Theorien 

 der modernen Biologie. V r orangesetzt ist dem Werke eine kurze 

 Darlegung derjenigen Punkte, in welchen die Anschauungen des 

 Verf. von den scholastischen Abweichen. Ausführlicher kann auf 

 die vom Verf. entwickelten Gedankengänge hier nicht eingegangen 

 werden. Le'eke (Neubabelsberg). 



Leehmere, A. E., Further In vestiga tio n s of Methods of 

 reproduetion in the Saproleginaceae. (New Phytol. X. p. 167 — 

 203. 6 pp. 7 plates. 1911.) 



The species previously described by the author (New Phytol. 

 IX. p. 305j is shown to be Saprolegnia tomlosa, and to present great 

 Variation in both sexual and asexual methods of reproduetion. A 

 second species 5. Thuretii is also described, which amongst other 

 peculiarities forms new sporoeysts by basipetal segmentation of the 

 hyphae. 5. Thuretii is found to produce gemmae and chains of 

 ooeysts as is the case in S. torulosa. A. D. Cotton. 



Massee, G., British Fungi and Lichens. (8vo Gl. 551 pp. 40 

 col. plates. London, G. Roubeledge & Sons Ltd, 1911. Price 6/.) 



This fungus fiora of the British Isles deals with the larger fungi, 

 namely Hymenomycetes , Gasteromycetes and the larger Ascomycetes. 



Part l. (65 pages) consists of a general aecount of the subjeet, 

 including pathology. Part 2 being entirely systematic. The specific 

 descriptions are concise but the generic characters, often so diffi- 

 cult to express, are dealt with very fully. Forty coloured plates 

 illustrating some 200 species greatly add to the value of the text. 

 The work concludes with a brief sketch of the British Lichens. 



A. D. Cotton. 



Petersen, S., Danske Agaricaceer (Danish Agavicaceae) II. 

 (232 pp., G. E. C. Gad. Köbenhavn, Nov. 1911.) 



This is the second and last volume of a systematic aecount of 

 all agarics, hitherto found in Dcnmark. The first vol. was published 

 in 1907. In both vol. 's together are enumerated nearly 1200 species. 

 Of each seperate species the macro- and microscopical characters 

 are given, as also its synon3 T ms and the places, where it was found. 



2 new spec. are proposed : Omphalia gvaveolens and Nolanea 

 fusco-cinerea , and 17 new varieties: Lepiota naucina var. gracilis, 

 Tricholoma pevsonatum var. comp actum , Collybia stipitaria var. syrin- 

 gicola, Omphalia tricolor var. flavo-aurantia , Marasmins Wynneivds. 

 veysicolor , Entoloma turbidum var. pinophilum , Entoloma nidorosum 

 var. campestre, Eccilia cancrina var. minor , Eccilia neglecta var. gla- 



