86 Eumycetes, — Pflanzenkrankheiten. 



veautes, nous relevons Odontia pallida nov. subsp. subordonnee ä 

 0. cristiilata, 0. Qiieletii nov. nomen substitue ä 0. farinacea Que- 

 let, Sistotrema ericetorum nov. subsp. intermediaire entre S. subla- 

 mellosa et Grandinia niuscicola. P. V'uillemin. 



Brocq-Rousseu. Etüde surl' Acremonium Potronii V u i 1 1. ( Revue 

 gen. Bot. XXVI. p. 150—156. 1914.) 



L'auteur confirme les caracteres morphologiques assignees ä 

 l'espece et explique les divergences apparentes mentionnees par 

 Gougerot. II decrit ensuite l'aspect des cultures en milieux va- 

 ries; il decele la secretion de trypsine, de presure, de casease. Ses 

 essais d'inoculation aux animaux sont restes negatifs. L'iodure de 

 potassium, bienfaisant pour le malade, ne semble pas agir comme 

 parasiticide, car V Acretnoniiim Potronii, entraine ä supporter des 

 doses progressives, vegete encore, quoique chetivement, dans une 

 Solution contenant 30% d'iodure de potassium. P. Vuillemin. 



SutherlaDd, G. K., New Marine Fungi on Pelvetia. (New 

 Phytologist. XIV. 2—3. p. 33—42. 1915.) 



The author has made a special study of fungi occurring on 

 Pelvetia cnnaliculaia, which from its habit seemed iikely to prove 

 a suitable host. Five new species are described as a result, namely: 

 Mycosphaerella Pelvetiae, Stigmatea Pelvetiae, Pharcidia Pelvetiae, 

 Pleospora Pelvetiae, the latter having as its probable conidial stage 

 Macrosporium Pelvetiae, sp. nov. 



Of these species, stigmatea and Pharcidia are parasitic, as is 

 also the Macrosporium stage of the Pleospora. Mycosphaerella Pel- 

 vetiae has been found in every specimen of Pelvetiae examined by 

 the author, bat apparently does no injury to the host, the myce- 

 lium bein.o: entirely intercellular. The association is regarded by 

 the author as a case of svmbiosis. E. M. Wakelield (Kew). 



Sutherlaad, G. K., New Marine Pvrenomvcetes. (Trans. Brit. 

 Myc. Soc. V. 1. p. 147—154. 1 pl. 1914.) 



Five new species of Pyrenornycetes are described, growing on 

 marine algae, two of them constituting types of new genera, Trailia 

 and Ovcadia. The species are the following: Ophiobolns La^ninariae, 

 on stalks of Lafninaria digitata, Trailia Äscophylli, parisitic on the 

 thallus of Ascophyllmn nodosum, Orcadia Äscophylli, parasitic on 

 the same host; Hypodenna Laminariae, on the living thallus of 

 Latninaria sacchavina , and Dothidella Pelvetiae, on Pelvetia canali- 

 culata. All were collected on the shores of Orkney. 



In addition to the technical descriptions, notes are given on the 

 habit and biology of the species mentioned. 



E. M. Wakefield (Kew). 



Fonzes-Diacon. Sur le= bouillies cupriques. (C. R. Ac. .Sc. 

 Paris. CLX. p. 528 -.530. 19 avril 1915.) 



La valeur fongicide d'une bouillie est li^e ä la proportion de 

 Sulfate tetracuivrique qu'elle renferme, car c'est, de tous les Sulfa- 

 tes basiques. celui qui donne la plus forte proportion de sulfate de 



