Eumycetes. 
145 
poisonous substance, secreted by the germ-tubes, whereas no such 
substance diffuses from the yellowing leaf; or c) that the change in 
the vital activities of the leaf consequent upon yellowing, induces 
some alteration in the composition of the external cell-walls, which 
enables the germ-tubes to penetrate. It is left for future research to 
decide which of these suggestions is correct. 
With regard to the experiments on the mineral starvation of the 
host, the results agree with those obtained by Marshai Ward with 
Puccinia dispersa, viz. hat the starvation of the host had no appre- 
ciable effeet upon the infective power of the fungus. 
A. D. Cotton. 
Crossland, C., Recently discoverejd Fungi in Yorkshire. 
(The Naturalist, July 1908. p. 214—218.) 
A second list of additions to the county since the publication 
of the “Yorkshire Fungus Flora” in 1905. One new species is descri- 
bed, viz. Humana globoso-pulvinata, a plant of reddish flesh colors, 
1—1.25 mm. diam.; asci 140—150X 16—18 n , inoperculate; spores 
eguttulate, continuous, smooth, 12 A. D. Cotton. 
Heald, F. D. and V. W. Pool. The Mould of Maple Syrup. 
(21 st An. Rep. Nebraska Ag. Exp. Stat. p. 54—68, 7 figs. 1908.) 
A historical discussion of the peculiarities of nutrition of such 
forms of fungi as Penicillium , Aspergillus and Torula is fcllowed by 
the description of a fungus which was found very commonly on 
maple syrup as it was obtained in the market. The fungus is closely 
related to Torula sacchari-lactis Oud., but from which it seems to 
be specifically different. The name Torula saccharina is suggested 
for the new form. Experiments were made to determine the relation 
of growth to the concentration of sugar, effeet of concentration of 
sugar on Spore size, and the effeet of the form of nitrogen on growth. 
The osmotic pressure relations of various nutrient media is discussed 
in relation to the organisms which are capable of growing upon 
ver} T concentrated media. The per cent of sugar which will prevent 
the growth of this new form lies between 75 and 80 per cent, hence 
it seems that the market articles should be made more concentrated 
than this if they are to be free from such moulds. R. J. Pool. 
Massee, G., Fungi Exotici. VIII. (Bulletin Roy. Bot. Gard. Kew. 
N°. 5. p. 216—'219.) 
The following new species are described: Volvaria esculenia, 
Old Calabar, on coffee pulp; Boletus curlipes, Cape Colony; Hexagonia 
Bartlettii British Guiana; Daedalia Gollanii, Mussoorie; Lycoperdcm 
lignicolum, Selangor; Exobasidium Fawcettii Jamaica, on Lyonia 
jamaicensis; Uredo satyrii, Cape Colony, on Satyrium coriifolium; 
Nectria theobromae, West Indies; Phyllachora Dawei Uganda, on 
Ficus sp.; Dermatea mycophaga, Straits Settlements, on Xylaria sp.; 
Graphium anomalum Gold Coast; Gloeosporium pestis, Fiji, on living 
Yam leaves. A. D. Cotton. 
Petch, T., The Genus Endocalyx Berkeley and Broome. (Ann. 
of Botany. Vol. XXII. July 1908. p. 389—400, 1 Plate.) 
The author has investigated living material of the curious genus 
Botan. Centralblatt. Band 110. 1909. 10 
