ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 325 



Agyrium flavescens.* — M. and Mme. Fernand Moreau have made 

 a study of this Discomycete, parasitic on the thallus of Peltigsra pohj- 

 dactyla. It grows on the under surface of the thallus among the 

 somewhat loose hyphse of the lower medulla. The hyphae of the parasite 

 are easily distinguished from those of the lichen by their much smaller 

 dimensions ; they occupy the spaces between the lichen hyphse and do not 

 form haustoria. The mature fruiting body has no distinct excipulum, 

 but it is surrounded by a layer of dead lichen cells. The authors add 

 that an amoeba inhabits the same lichen and lives on the parasitic 

 Agyrium. 



Note on a Parasitic Saccharomycete.f — Albert Schneider follows 

 up his previous account of this fungus, which grows on tomatoes, by the 

 determination and diagnosis of the Saccharoimjcete. He now places it 

 in the genus Nematospora Peglion, as N. Lycopersici. It bears a strong 

 resemblance to N, Coryli, both species being true parasites on the plants 

 of warm countries (South Italy, South California and Cuba). 



Aspergillus Amstelodami.| — This fungus was discovered in cultures 

 at Amsterdam, and is distinguished from the nearly related A. gJauciis 

 by the smaller spores. Paul Yuillemin finds reason for suspecting that 

 this fungus may be a parasite of the human body. It was taken from 

 a patient and cultured on artificial media. The fungus is fully described. 



Aspergillus fuinigatus.§ — A. Ch. Hollande and J. Beauverie describe 

 the development of this fungus found in the expectoration of a patient 

 suffering from breathlessness of asthmatic nature. The fungus, which 

 existed in the mycelial condition, was isolated and cultivated, and the 

 heads and spores of AsiJergillus fumigatus were produced in abundance. 



Amyloid of the Ascus as a Reserve Substance. |1 — Fernand Moreau 

 gives his observations on the portion of the ascus that in some genera 

 of Discomycetes becomes blue on the application of potassium iodide. 

 Frequently the amyloid is deposited as a ring round the tip of the 

 ascus and aids in the expulsion of the spores, but in some instances the 

 substance is gradually used up as the spores mature, and in such asci 

 there is no colour reaction with iodine. Moreau notes particularly 

 the amyloid in Peltigera, which occupies the tip of the ascus like a 

 cylindrical cork, and at maturity is shot out to allow the escape of the 

 i5pores. 



Spicaria Parasitic on a Myxomycete.lf — Fernand Moreau has 

 determined a new species of Spicaria, which was found by Dumee, 



* Bull. Soc. Mycol. France, xxxii. (1916) pp. 49-53 (3 figs), 



t Phytopathology, vii. (1917) pp. 52-3. 



j Comptes Rendus, clxiv. (1917) pp. 347-50. 



§ Bull. Soc. Mycol. France, xxxii. (1916) pp. 17-24 (4 figs.). 



II Bull. Soc. Mycol. France, xxxii. (1916) -pp. 25-6. 



^ Bull Soc. Mycol. France, xxxii. (1916) pp. 33-6 (figs.). 



