144 Eumycetes. 



dioüles El. and Ev. On this account the author supposes tbat we 

 will have to call the Otthia the ascosporic stage of Hendersonia 

 diplodioides El. et Ev. 



The second part of these notes contains the descriptions of two 

 new species: 1. Neottiosporia yiiccaeafoUa n. sp. (in foliis Yiiccae 

 depereantibus aut mortuis. Pullman. Wash.) and 2. Tureenia juncoidea 

 n. sp. (in culmis Junci mortuis. Pullman. Wash.)- This last species 

 belongs to the hyphomycetes in the same group as Goniosporhnn 

 and Arthrinium, but, since these are separated upon the shape of 

 the conidia, the author believes that it is necessary to make a new 

 genus of his fungus. M. J. Sirks (Haarlem) 



Heald, F. D. and R. A. Studhalter. Longevit}'- of pycno- 

 spores and ascospores oi Eiidothia parasitica \xr\ der <irt'\- 

 ficial conditions. (Phytopathology. V. p. 35—43. 1915.) 



The authors summarize their researches about the longevity ot 

 pycnospores in water, the effect of desiccation on separated pycno- 

 spores and the effect of dessication on ascospores of Endothia para- 

 sitica as follows: 



1. Pycnospores retained in Suspension in water at various tem- 

 peratures, show a very slow but gradual reduction in the number 

 remaining viable. At temperatures from 42° to 75° F., one third 

 were viable at the end of 49 days. At freezing temperature orbelow 

 the loss of vitality was even less pronounced. 



2. Pycnospores when separated by water and allowed to dry 

 are much less resistant than if dried in the form of spore-horns. A 

 very large number of separated pj'^cnospores, dried on glass, are 

 killed in the process of drying, the per cent varying from 66 to 78, 

 as determined by plate cultures. None remained viable for longer 

 than two" weeks. 



3. Ascospores when separated and allowed to dry from Suspen- 

 sion in water are much less resistant to desiccation than when dried 

 in the form of spore prints on object slides. A very large number 

 of separated ascospores dried on glass are killed in the process of 

 drying, the per cent varying from 86 to 94, as determined b}^ plate 

 •cultures. None remained viable for longer than 35 days. 



4. Desiccation of spores on a glass surface gives more severe 

 conditions than those usually found in nature. Both pN'cnospores 

 and ascospores when separated and dried on living bark and leaves 

 show a greater vitality than if dried on a glass surface. 



'^M. J. Sirks (Haarlem). 



Ito, S., On Typhulochaeta, a new genus oi Erxsiphaceae. [Bot 

 Mag. Tokyo. XXIX. p. 15-22. 1915.) 



The paper contains this description of the new genus Typhulo- 

 chaeta S. Ito et Hara nov. gen.: Mycelium external, sending haustoria 

 into epidermal cells. Perithecia globose to globose-depressed ; asci 

 several, 8 spored. Appendages simple, clavate, colorless. The only 

 new species is: T. japornca S. Ito et Hara nov. spec. : Hypoohyllous; 

 persistent in thin patches; perithecia scattered or subgregarious, 

 globose to globose-depressed, 120—200 a in diameter, cells 10—20 u 

 Wide; appendages numerous (90 — 160), spring from the upper part 

 of the perithecium, thick walled, simple, clavate, rounded at apex, 

 colorless, 45—65 X 10 — 15 ,« ; asci 5—13, ovate, oblong-ovate, or 

 ellipsoidal, with a short stalk, 70—97 X 40—55 u; ascospores nor- 



