218 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
are nearly related to tlie Parmeliacese, and the boundary between the 
two cannot he clearly laid down. 
Injurious Symbiosis of Lichens.* * * § — Herr G. 0. Malme records 
several instances of one lichen living parasitically on another, and 
weakening it or even destroying its life. Thus Lecanora atriseda attacks 
in this way Rhizocarpon geographicum. The hyphee of one lichen appear 
to obtain their nourishment from the gonidial layer of the other species. 
A similar relationship exists between Lecanora sordida and Lecidea 
inlumescens. 
Laboulbeniacese. — Together with a number of new species of this 
order of Fungi, Mr. E. Thaxterf describes two more new genera, with 
the following diagnoses : — 
Liplomyces. Flattened antero-posteriorly, subtriangular, bilaterally 
symmetrical, furcate through the presence of two prominent posterior 
projections. The receptacle consisting of two superposed cells, followed 
by four cells placed antero-posteriorly in pairs, of which the posterior 
produce the prominences, the anterior a pair of short peritheces, near 
the base of which, within and above, arise two or more pairs of appen- 
dages, and eventually, a second pair of peritheces. Appendages copiously 
branched, many of the branchlets terminated by beak-like cells. Spore 
once septate. 
Eucantheromyces. Keceptacle consisting of two superposed cells, 
giving rise on one side to a free stalked peritliece, on the other to a free 
appendage, the appendage consisting of a basal and sub-basal cell, ter- 
minated by a compound antherid. The antherid formed from numerous 
small cells, obliquely superposed in three rows, bordered externally by 
a sterile cell, and terminated by a cavity from which the antherozoids 
are discharged through a short irregular finger-like projection. 
The name Acanthomyces, previously given to a genus of Laboulbeni- 
aceae, is now replaced by Eliachomyces. 
Under the name Laboulbenia gigantea , Herr G. Istvanffi^ describes a 
new species of this genus, the largest at present known, measuring 1 * 2 
mm. in length. It forms yellow patches on the elytra, legs, and thorax 
of a ground-beetle living in caves. 
Supposed Conversion of Aspergillus Oryzse into Saccharoniyces.§ — 
Herren A. Klocker and H. Schlouning have repeated the experiments 
made by Juhler and Jorgensen with Aspergillus Oryzse , and have failed 
to observe any indication of a conversion of this fungus into a Saccharo- 
myces form. In the course of their researches the authors remarked 
that A. Oryzse forms sclerotes, a phenomenon hitherto unnoticed. Full 
particulars and details of the experiments are promised later. 
Granules in Yeast-Cells. || — Dr. S. Eisenschitz has cultivated certain 
yeasts in beer-wort coloured with benzopurpurin, methyl-green, and Congo 
* Naturv. Studentsallsk. Upsala, March 31st, 1892. See Bot. Centralbl., lxiv. 
(1895) p. 46. 
t Proc. Amer. Acad. Sci., xxx. (1895) pp. 467-81. Cf. this Journal, 1895, p. 461. 
t Termesz. Fuz., xviii. (1895) pp. 82-6, 136-8 (1 pi.). See Bot. Centralbl., 1895, 
Beih., p. 327. 
§ Centralbl. f. Bakteriol. u. Parasitenk., 2 tc Abt., i. (1895) pp. 779-82. Cf. this 
Journal, 1895, pp. 462, 556. 
|] Centralbl. f. Bakteriol. u. Parasitenk., 2 te Abt., i. (1895) pp. 674-80. 
