224 Fungi, Bacteria und Pathologie. 



Analysen vor und nach der Verwesung ergaben hauptsächlich Ab- 

 nahme der stickstofffreien Extraktstoffe. Hugo Fischer (Bonn). 



Ckaiü, John and Hook, J. M. van, Pink Rot, an attendant 

 of Apple Scab. (Cornell University Agricultural Expe- 

 riment Station. Bulletin No. 207. Nov. 1902. p. 161—171. 

 pl. 2. Hg. 36—40.) 



The fungus Cephalotkecium roseum Cda and a bitter rot of apples 

 designated as „pink rot" from the color of the fungus, is described. The 

 fungus is proved to be able to gain an entrance through wounds made 

 by the scab fungus Fusicladium dendriticum Fckl. The latter does not rot 

 the apple but grows beneath the skin and deforms it causing it to crack 

 open. About these cracks the skin becomes upturned affording an easy 

 entrance tho the „pink rot" fungus, which soon spreads over the scab 

 and into the adjacent healthy tissue turning it brown and causing it to 

 sink around the scab. Remedies which deal with the prevention of the 

 scab are suggested. Cold storage retards the decay. Piling apples on 

 the ground invites rot from this source. G. G. Hedgcock. 



Ellis, J. B. and Bartholomew, E., New species of Fungi 



from Various Localities. (Journal of Mvcology. VIII. 



Dec. 1902. p. 173—178.) 



The tollowing new species of fungi are described : Aecidium delphinii 

 Barthol., on leaves of Delphin ium scopulorum. Diaport he (Chorostate) 

 celastrina E. and B., on dead stems of Celastrus scandens, Cucurbitaria 

 juglandina E. and B. on dead limbs of Juglans nigra. Solenopeziza fim- 

 briata E. and B., on decorticated logs of Populiis tremuloides. Phyllosticta 

 juliflora E. and B., on pods of Prosopis juliflora. Dothiorella multicocca 

 E. and B.' on bark of Populus deltoides. Shaeropsis persicae E. and B., 

 on dead limbs of Amygdalus persica. Shaeropsis Salicis E. and B., on 

 dead shoots of Salix cordata, Ceoniothyrium helianthi E. and B., on dead 

 stems of Helianthus annuus. Haplosporella sambucina E. and B., on 

 dead stems of Sambucus canadensis. Haplosporella wistariae E. and B.„ 

 on Wistaria in cult. Botryodiplodia gossypii E. and B , on dead stems 

 of Gossypium herbaceum. Stagonospora biformis E. and B., on small 

 decorticated limbs of apple tree. Camarosporium asterieolum E. and B.„ 

 on dead stems of Aster multiflorus. Septoria munroae E. and B., on leaves 

 of Mnnroa squarrosa Torula brochiata E. and B., on dead branches of 

 Symphoricarpus occidentalis. Toriila sepulta E. and B., on old pine 

 wood. Stachybotryella n. gen. E. and B. Stachybotriella repens on living 

 leaves of Verbesina virginica. Cercospora crotonicola E. and B., on leaves 

 of Croton fruticulosus. Cercospora ratibidae E. and B., on Ratibida 

 columnaris. Macrosporium ornatissimum E. and B., on living leaves of 

 Sorghum vulgare. Chaetostroma graminis E. and B., on dead grass 

 leaves. Exosporium caespitosum E. and B., on dead (birch ?) limbs. 



G. G. Hedgcock. 



GAGE, S. und B. PHELPS, Untersuchungen von Nähr- 

 böden zur quantitativen Schätzung vonBakterien 

 in Wasser und Abwässern. (Centralblatt für Bakterio- 

 logie. Abt. I. Bd. XXXII. p. 920.) 



Mittheilungen von wesentlich technischem Werth, die u. A. die Ab- 

 hängigkeit des Bakterienwachsthums vom Nährsubstrat klar vor Augen 

 führen: auf Agar mit l°/o „Nährstoff Heyden" kamen stets weit mehr 

 Colonien zur Entwickelung, als auf den anderen üblichen Böden , auf 

 denen schwächere Bakterien häufig nicht die Bedingungen ihres Ge- 

 deihens finden. Hugo Fischer (Bonn). 



