722 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
Spore-forming Saccharomyces.* * * § — Mr. C. Bay describes twenty-two 
species of Saccharomyces in which the formation of spores has at 
present been observed. The form of the spores, the conditions under 
which they are produced, and the physiological properties of the species, 
are given in detail ; and these observations are, in conclusion, arranged 
in a tabular form. 
Pedicel' of the Teleutospores of Pucciniese/f — M. P. Vuillemin 
points out that it is frequent, in the teleutospores of the Puccinieae, for 
the outer layer of the cell-wall of the spore to be continued, without a 
break, over the pedicel, preserving the same structure. The pedicel is 
often of great length, and carries on an independent existence after the 
fall of the spore. It may even put out a germinating filament. A new 
species of Uromyces is described, U. verrucipes , parasitic on Euphorbia 
Peplus. 
Hetercecious Uredinese.J — Herr H. Klebahn records the following 
additional observations : — 
Peridermium oblongisporium belongs to the cycle of development of 
Coleosporium Senecionis ; S. Stahlii to that of C. Euphrasise ; P. Plowrightii 
to that of C. Tussilaginis. C. Alectorolophi belongs to P. Stahlii. 
Puccinia Laricis produces AEcidium Urticse on Carex dioica and 
G. Goodenoughii. P. coronata produces secidia on Bhamnus Frangula , 
uredo- and teleutospores on Agrostis vulgaris , Calamagrostis lanceolata 
and arundinacea, and Holcus lanatus and mollis ; while the nearly allied 
P. coronifera sp. n. produces secidia on Phamnus catharticus , uredo- and 
teleutospores on Holcus lanatus , Arrhenatherum elatius , Festuca elatiov , 
and Lolium perenne. P. Prailii produces secidia on Bumex Acetosa, but 
not on B. crispus, and is therefore distinct from P. Phragmitis. AEcidium 
Periclymeni , sown on Festuca ovina, gave rise to Puccinia Festucse. 
Parasitic Fungi. — Sig. Y. Peglion § describes two diseases of the 
melon, one due to the attacks of a pathogenic fungus, Alternaria Brassicse 
f. nigrescens , the other to an acarus, Tetrarhynchus telarius , the latter 
also attacking Citrullus vulgaris. 
Sig. A. N. Berlese j] treats of a disease of the chestnut shown by the 
premature falling of the leaves, caused by the attacks of a parasitic 
fungus, the conidial stage of which is known as Cylindosporium castani- 
colum , the spermogone stage as Phyllosticta maculiformis. 
The same author ^ finds both the leaves and fruit of the fig attacked 
by Cercospora Bolleana , and the fruit by Uredo Fici. 
Herr F. Kruger ** describes in detail the injuries caused in the 
turnip by Phoma Betse, to which he attributes the two diseases known 
as Herzfdule and Wurzel-brand. According to Sorauer ( loc . cit.'), the 
* Amer. Natural., xxvii. (1893) pp. 6S5-96. 
t Bull. Soc. Bot. France, xli. (1894) pp. 285-90. 
X Zeitschr. f. Pflanzenkrankheiten, 1894, pp. 7, 84, 129 (1 pi.). See Bot. Cen- 
tralbl., lix. (1894) p. 334. Cf. this Journal, 1893, p. 511. 
§ Riv. di Fatologia Vegetale, ii. (1893) pp. 227-40. See Bot. Centralbl., lix. 
(1894) p. 47. 
|| Tom. cit., pp. 194-226. See Bot. Centralbl., lix. (1894) p. 48. 
t Tom. cit., pp. 251-3. See Bot. Centralbl., lix. (1894) p. 117. 
** Zeitschr. f. Pflanzenkrankheiten, iv. (1894) pp. 13-20. See Bot. Centralbl., 
lix. (1894) p. 117. 
