658 Eumycetes. — Pflanzenkrankheiten. 



fungi afifect cereals should be ascertained by laboratory and green- 

 house studies. These need to be reinforced by pure culture inocu- 

 lations of seeds, seedlings, plant in various stages of growth, and 

 soil under field conditions before the exact relation of such fungi 

 to cereal cropping can be definitel}^ established. Jongmans. 



Long, W. H., An undescribed speciesof Gynmosporatigiunt 

 from Japan. (Journ. Agric. Res. I. p. 353—356. 1914.) 

 The new species described in this paper, Gymnosporangium 

 chinensis , occurs on Jimiperus chinensis, on stock imported from 

 Japan. For a comparison descriptions of G. japonicum Syd. and G. 

 haraeanum Syd. are added. The writer compared his new species 

 with portions of the types of the other two, and, although the rela- 

 tions especially with G. haraeanum, are very narrow, he succeeded 

 in establishing good diagnostical characters in the spores. The 

 most marked difference between G. haraeanum and the new species 

 is the Position of the germ pores in the colorless thin-walled telio- 

 spores. In G. chinensis the}'^ are plainly apical in the upper cell, 

 while in G. haraeanum they are just as certainly situated only at 

 the septum in both cells. Jongmans. 



Spaulding, P., Fungi of Clay mines. (Rept. Miss. bot. Garden. 

 XXI. p. 189-195. 1 Fig. 1910) 



A number of clay mines in the western part of the cit}' of 

 St. Louis were visited for the purpose of determining the species 

 of fungi occurring upon the timbers. Quite a number of wood-inha- 

 biting fungi were found to be fruiting in a normal manner, but 

 there were evidently others which were unable to form an}^ re- 

 cognizable sporophores. One of the commonest species was Merulius 

 rebellus Peck. Curiously enough, this and other species are not 

 common in the vicinity of the mines, but are rare or comparatively 

 rare or do not occur in the neighbourhood. 



Following species could be recognized growing on oak timber. 

 Fontes applanatus, Lensites hetulina, Polystictus versicolor , Merulius 

 lacrynians var. verucifer, Stereihn spadiceuryi, Bulgaria inquinans, 

 Hydnum erinaceus, this grew in a rather peculiar type, in the form 

 of a rounded mass, hanging pendant from the lower end of a stout 

 stem several inches in length, and about an inch in thickness, 

 Hydnum coralloides, H. avtocreas. Among the edible fungi found 

 growing in the mines are: Coprinus atramentarius, different Aga- 

 ricineae. 



Schisophyllum commune was seen in but one mine. Polyporus 

 gilvus is probably represented by a mass of brown mycelium. Ar- 

 miUaria mellea was not found in the mines. 



The only fungus found occurring on pine timber was identified 

 as Farnes annosus Fr. Jongmans. 



Gentner, G., Das Saatgut als Träger von Krankheits- 

 keimen. (Jahresber. Ver. angew. Bot. XII. p. 28 — 43. 1915.) 

 Verf. schildert in kurzen Zügen die wichtigsten mit dem Saatgut 

 übertragbaren Krankheiten landwirtschaftlicher Kulturpflanzen und 

 gibt dann eine Beschreibung der Hiltner'schen Ziegelgrusmethode 

 zur Bestimmung dieser Pilzkrankheiten. Die Ziegelgrusmethode 

 eignet sich nicht zur Prüfung von Rübensamen und auch für 

 Knaulgrasuntersuchungen war sie nicht geeignet; in erster Linie 



