223 
ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
Abietis. It is a true parasite, and not a saprophyte, as previously sup- 
posed. 
Fungus-diseases of Cultivated Crops.*— Dr. P. Yoglino has com- 
menced a series of illustrations of the parasitic fungi which are most 
injurious to cultivated plants. Each part contains a description of 
the fungus and of the nature of the injury inflicted, with recommenda- 
tions as to the best remedy, and is illustrated by a coloured plate. The 
parts at present published relate to the following: — Ustilago Mayd.is , 
the smut of Indian corn ; Monilia fructigena , the mould of fruits ; Usti- 
lago segetum, the smut of corn ; Exoascus deformans , causing the bladder 
on peach and plum-leaves ; Puccinia graminis , the rust of corn ; Phyto- 
phthora infestans, the potato-blight ; Phyllosticta prunicola , the rust of 
peach and plum leaves ; and Colletotrichum Lindemuthianum , the anthrac- 
nose of the bean. 
Fungus Diseases of the Orange.f — Mr. L. M. Underwood describes 
a number of diseases to which the orange crop in Florida is liable, of 
which the following are caused by fungi : — scab, by a species of Cla- 
dosporium ; leaf-spot by Colletotrichum aduslum ; sooty mould by Capno- 
dium Citri, which is saprophytic upon honey-dew ; leaf-glaze, by a Strigula, 
probably S. complanata ; also blight, probably by bacteria. 
Brown and Grey Barley 4 — Herr A. Zoebl finds that the grey and 
brown colour of barley-grains which indicates a diseased condition is 
due to the presence of fungi, chiefly saprophytic, the most abundant 
being species of Sporidesmium , Cladosporium, Dematium, and Helmintho- 
sporium. The mycele of these fungi destroys the tissues, especially in 
the neighbourhood of the vascular bundles, converting it into a brown 
amorphous mass. 
iEcidiconium, anew Genus of Uredinese.i— M. P. Yuillemin finds 
a parasitic fungus on the leaves of Pinus montana , which he regards as 
the type of a new genus, and describes under the name AEcidiconium 
Barteti . The genus comes nearest to Endophyllum among the Uredinem, 
but is distinguished by the predominance of the conidial apparatus over 
the forms of spores usually found in the Uredineae. The teleutospores 
and aecidiospores are to a large extent sterile, the functions of multipli- 
cation and dissemination being usurped by the conids. 
New Genera of Fungi. |] — The following additional new genera of 
Hymenomycetous fungi from Ecuador are described by M. N. Patouillard 
and Prof. G. von Lagerheim : — Heterochsete. Fungi heterobasidiosporei, 
effusi, membranaceo-floccosi v. coriaceo-gelatinosi, undique setulosi ; 
setulis parenchymaticis sterilibus; basidia globoso-ovoidea, cruciatim 
partita, apice sterigmata bina v. quaterna gerentia; sporse continuse, 
* ‘ I Funghi pih dannosi alle piante coltivate,’ fasc. 1-8, Casale, 1891-92, 84 pp. 
and 8 pis. 
f Journ. Mycol., vii. (1892) pp. 27-36. See Bot. Centralbl., 1892, Beih., p. 531. 
t Oesterr. Zeitschr. f. Bierbrauerei u. Malzfabrikation, 1892, Nos. 23 and 25; 
and Allgem. Brauer- u. Hopfen-Zeit., 1892, No. 106. See Bot. Centralbl., li. (1892) 
p. 344. § Comptes Rendus, cxv. (1892) pp. 966-9. 
|| Bull. Soc. Mycol. France, viii. (1892) pp. 113-40 (2 pis.). See Bot. Centralbl., 
1892, Beih., p. 416. Cf. this Journal, ante , p. 79. 
