ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
379 
Herr C. Raunkiaer * * * § describes two new parasitic fungi, Peronospora 
stigmaticola on the stigmas of Mentha aquatica, and Enlomophthora 
Nehrise on a coleopter Nebria brevicollis. 
M. E. Prillieuxt states that Polyporus hispidus is exceedingly de- 
structive to pears, mulberries, and other fruit-trees. The hypliee excrete 
a ferment which destroys the starch in the parenchymatous tissue, and 
reduces the cellulose to a brown gummy mass. 
A similar disease is, according to Prof. R. Hartig,f produced in the 
trunk of oak-trees by Aglaospora taleola. 
Herr E. Rostrup § describes the injuries inflicted on a large number 
of forest trees in Denmark by' parasitic fungi, viz.: — Agaricus mellem 
and Trametes radiciperda on many conifers ; and the latter also on the 
root of the ash ; Polyporus fomentarius on the elm ; P. radiatus on the 
alder, birch, and beech; P.vegetus on the beech, elder, and other trees; 
Melampsora pinitorqua on Pinus montana, especially in the neighbourhood 
of Populus tremula ; Taphrina coerulescens on the leaves of the oak ; Lo- 
phodermium Pinastri and Eypoderma sulcigenum on conifers ; Nectria 
ditissima on the oak, Populus alba, and Salix alba ; Myxosporium 
devastans sp. n. on the birch ; M. carneum on the beech ; M. lanceola on 
the oak. 
The same author || enumerates the species of Entomophthoracem, 
Hypocreaceae, and Hyphomycetes parasitic on Arthropoda in Denmark. 
Three new species are described : — Isaria aspergilliformis sp. n., para- 
sitic on small spiders, Verticillium Aphidis on aphides ; Botrytis Muscae , 
sp. n., probably, like the last, the conidial form of a Cordyceps. 
Herr C. v. Tubeufl describes the structure and life-history of 
Empusa Aulicse, and the injuries inflicted by it on a Noctuid larva. 
MM. E. Prillieux and G. Delacroix ** find Gercospora Odontoglossi 
parasitic on Odontoglossum crispum, Macrophora suberis on Quercus suber , 
Bamularia Onobrychidis on Onobrychis sativa, Phyllosticta cicerina on 
Cicer arietinum, Vermicularia conidifera on Dracaena , Gytispora Pandani 
on Pandanus utilis, Septoria Carrubi on Ceratonia siliqua, Cladosporium 
herbarum on Cycas. They also describe the spermogones of Fusicladium 
pirinum , parasitic on the pear. 
According to the same authors ff a cancer-like disease is produced on 
the trunk of Castanea vulgaris by the attacks of Diplodia Castaneae sp. n. 
Development of Penicillium luteum.ifj — Herr C. Wehiner describes 
in detail the structure and development of this very common green 
mould on fruits, and the characters by which it is distinguished from 
P. glaucum. The ascus-fructification is formed abundantly in this species. 
* Bot. Tidskr., xviii. (1893) pp. 108-11. See Bot. Centralbl., lvii. (1894) p. 134. 
f Bull. Soe. Mycol. France (1893) p. 255. See Bot. Centralbl., lvii. (1894) p. 175. 
J Forstl.-naturw. Zeitschr., 1893, pp. 1-6 (4 figs.). See Bot. Centralbl., lvii. 
(1894) p 180. 
§ Tiddskr. f. Skovvsesen, 1893, pp. 97-117. See Bot. Centralbl., lvii. (1894) p. 182. 
II Vidensk. Meddel. naturh. Foren. Kjobenhavn, 1893, pp. 78-95. See liot. Cen- 
tralbl., lvii. (1894) p. 184. 
Forstl.-naturw. Zeitschr., 1893, pp. 31-47 (7 figs.). See Bot. Centralbl., lvii. 
(1894) p. 185. 
** Bull. Soc. Mycol. France (1893) p. 230. See Bot. Centralbl., lvii. (1894) p. 200. 
ft Bull. Soc. Mycol. France (1893) p. 257 (1 fig.). See Bot. Centralbl., lvii. 
(1894) p. 180. 
XX Ber. Deutsch. Bot. Gesell., xi. (1893) pp. 499-516 (1 pi.). 
