498 Fungi, Bacteria und Pathologie. — Lichenes. 



Gloniopsis carvata (Fr.) Sacc. a etd confondu avec le G. levantica 

 Rehm et il complfete des diagnoses de ces deux espfeces en faisant 

 ressortir les caracteres qui les distinguent. R. Pampanini. 



RiDDLE, Lincoln W., Contributions to the Cytology of the 

 Entomophthoraceae ; PreliminaryCommunication. (Rhodora. 

 Vol. VIII. 1906. p. 67—68.) 



One species of Empusa and four species of Entomphthora were 

 studied. In Entomophthora the division of the nucleus is more or 

 less typically mitotic. During prophase the chromosomes are formed 

 by a direct aggregation of chromatin granules without the Intervention 

 of a spirem stage. In the formation of zygospores the fusing bodies 

 are coenogametes. The writer suggests that the azygospore of 

 Empusa is of the nature of a chlamydospore. Cytological con- 

 ditions indicate that Entomophthora is a more highly developed 

 genus than Empusa. Charles J. Chamberlain (Chicago). 



Sheldon, John L., The Ripe Rot or Mummy Disease of 

 Guavas. (West Virginia Agr. Expt. Stat. Bull. CIV. p. 299 

 —315. 4 pl. 29 fig. April 1906.) 



This paper gives the results of a careful study of the disease 

 of guavas, caused by Gloeosporium psidil Del., which was found to 

 have a perfect stage belonging to the genus Glomerella, thus pla- 

 cing it under the latter genus. In the study of this species para- 

 physes were found present in the asci, as a previous Observation 

 had been made with Glomerella rufomaculans (Berk.) Sp. and 

 von Seh., in which paraphyses were also noted in the asci, the 

 writer concludes that it may be necessary to amend the genus 

 Glomerella, which was described by Clinton and S paulding and 

 von Seh renk „aparaphysate". In the study of the fungus, two 

 conidial stages were observed; one, with the conidia borne on 

 hyphae after the usual manner of many of the Hyphomycetes; the 

 other, with conidia on basidia, after the manner of the Melanconiae. 



Hedgcock. 



Kryptogamae exsiccatae editae a Museo Palatino Vindo- 

 bonensi. Centuria XII — XIII. (Wien, August 1906.) 



Zahlbruckner, Alexander, Schedae ad „Krytogamas exsic- 

 catas" editae a Museo Palatino Vi ndo bon ensi. Cen- 

 turia XII — XIII. (Annalen naturhistor. Hofmuseums in Wien. 

 Bd. XX. [1905] 1906. p. 1-48.) 



Die beiden neuen Zenturien dieses Exsiccatenwerkes enthalten 

 die folgenden Zellpflanzen: 



Eungi (Decades 39 — 48). 



No. 1101. Ustilago echinata Schrot [Suecia, leg. T. Vester- 

 gren). — 1102. Uromyces excavatus (DC.) Magn. (Aus tri a in- 

 ferior, leg F. V. Höhnel). — 1103. Uromyces Valerianae (Schum) 

 Fuck. (Romania, leg. J. C. Constanti n eanu). — 1104. Uro- 

 myces Betae (Wint.) Kühn (Moravia, leg. H. Zimmermann). — 

 1105. Uromyces ambiguus (DC.) Fuck. (Moravia, leg. H. Zimmer- 

 mann). — 1106. Uromyces Chenopodii (Duby) Schrot. (Romania, 

 leg. J. C. C o n s t a n t i n e a n u). — 1 1 07. Uromyces Genistae tincto- 

 riae (Pers.) Wint. (Austria inferior, leg. F. v. Höhnel). — 1108. 



