ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
95 
Uredinopsis.* * * § — Of this genus of Fungi, at present known only as 
parasites on Ferns. Herr P. Dietel describes a new species, U. Pteridis, on 
Pteris aquilina from California. In addition to the two kinds of sporo 
observed in the older species, the author now describes a third, which 
he regards as unicellular toleutospores enclosed in a pseudoperidium 
composed of asciform cells. The aecidio-form is at present unknown, 
and the genus appears best placed at present among the Melampsoreae. 
Gliocladium.f — M. L. Matruchot has determined that this genus of 
Fungi, hitherto placed under the Mucedinese, must be transferred to the 
Ascomycetes, since G. penicillioides produces, under special conditions, 
a perfect ascogenous form, belonging to the Perisporiaceoe, and presenting 
in some respects a resemblance to Penicillium. He further states that 
some of the characters used to distinguish the species from one another 
cannot be relied on. 
Musk-Fun gus.l; — By cultivation Dr. H. Gluck has been able to obtain 
from the musk-fungus, Fusnrium aquseduclum, peritheces belonging to a 
Nectria which he named N. moschata sp. n. The ascospores from these 
peritheces produce again, on germination, a mycele bearing the ordinary 
conids of Fusarium. 
Secretion of Oil by Liehens.§ — According to Herr M. Fiinfstiick, 
the oil which is found in crustaceous lichens in special vesicular cells 
is not of the nature of a reserve food-material, but is rather an excretory 
product. The abundance of this oil is, as a rule, in inverse proportion 
to the number of the gonids ; its production is dependent on the nature 
of the substratum, being due to the decomposition of the carbon 
dioxide set free by the action of acids on the carbonates in that sub- 
stratum. 
Bendrographa, a new Genus of Lichens. || — Herr 0. Y. Darbishire 
establishes this new genus, founded on Boccella leucophsea , and dis- 
tinguished from Boccella chiefly by the structure of the stem, in which 
the cortical hyphoe run parallel to the surface instead of in a vertical 
direction. The hypothece also of Bendrographa encloses the hymenium 
on the sides as a black layer, while in Boccella it is wanting at these 
spots; the basal disk of the former genus possesses bolh cortex and 
gonids, while that of the latter apparently does not. 
Stictei.^T — In a monograph of this family of foliaceous lichens Dr. 
E. Stizenberger gives a full account of their anatomy, especially of the 
cyphellae and pseudo-cyphellse, which have often been taken for organs 
of reproduction, having been confounded with the soredes. The 189 
known species are arranged under three genera, viz. : — 35 of Biccasolia, 
82 of Sticta, and 72 of Stictina. 
* Ber. Deutsch. Bot. Gesell., xiii. (1895) pp. 326-32 (1 ph). 
t Rev. Gen. de Bot. (Bonnier), vii. (1895) pp. 321-31 (1 pi.). 
J Hedwigia, xxxiv. (1895) pp. 251-5. 
§ Beitr. z. wiss. Bot. (Fiinfstiick), i. (1895) p. 157 (1 pi.). See Hedwigia, xxxiv 
(1895) Rep., p. 119. 
|| Ber. Deutsch. Bot. Gesell., xiii. (1895) pp. 313-26 (1 pi. and 1 fig.). 
*[ Flora, lxxxi. (1895) Erganz.-Bd., pp. 88-150. 
