ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
641 
Eubacillus, a new Genus of Bacteriaceae.*— M. P. A. Dangeard 
describes a fresb-water Alga which, though green, forms endogenous 
spores like the Bacteriaceee. The alga, which is designated Eubacillus , 
consists of long slender filaments matted together; these do not present 
septa or ramifications, and their hyaline contents have a greenish tinge. 
The formation of spores imparts to this alga its specific characters. 
These spores are from six to eight fx long and about three /x broad. 
The mode of sporulation is similar to that observed by L. Klein in 
five species which are referred by this latter to the genus Bacillus. 
Herein the spores are formed by a condensation, so to speak, of the pro- 
toplasm, this by its contraction separates from the wall of the filament, 
and after becoming more and more refracting, finally surrounds itself 
with a membrane. 
Phragmidiothrix and Leptothrix.f — Dr. A. Hansgirg identifies 
the following species of Schizomycetes : — Beggiatoa midtiseptata Eng., 
Phragmidiothrix multiseptata Eng., Crenothrix marina Hansg., and Beg- 
giatoa foetida Fior.-Mazz., and all these probably with Leucothrix Mucor 
Oerst., in which case the name to be retained will be Crenothrix Mucor 
(Oerst.) Hansg. He divides the genus Crenothrix into two sections, — 
Phragmidiothrix , which includes the single species above named, which 
is marine, and Eucrenothrix, which is freshwater, and comprises the 
single species C. Kuhniana (Rbh.) Giard, including C. polyspora Cohn 
with its synonyms. 
Bacteria in the Colonies of Puccinia Hieracii.J — Sig. G. Caboni 
has observed that the spots on the leaves of Leontodon hastilis caused by 
the attacks of this fungus are infested with enormous quantities of 
bacteria which move about actively within the stalks of both the teleuto- 
spores and the uredospores. They were detected only when the spots 
had shown themselves for some time. 
Bacillus malariae.§ — Dr. B. Schiavuzzi confirms the results of the 
investigation on malaria by Klebs and Tommasi-Crudeli, who detected 
the presence of a bacillus in malarious districts. The author, however, 
not only identifies the micro-organism with which he has been working 
as that described by Klebs and Tommasi-Crudeli, but he has been 
able to make cultivations thereof, and so carry out some satisfactory 
infection experiments with animals. 
From his experiments the author concludes that the principal habitat 
of the bacillus of malaria is the air ; that it is rarely found in water, 
especially if it have a good fall ; that the districts it thrives best in are 
those where the soil is damp, but not covered with water ; and that as 
the temperature of the air and soil increase, so do its germs multiply. 
Practically, of course, the author’s paper is an attempt to prove that 
the Plasmodium malarias is not the cause of malaria. 
Bacteria of Influenza.||— Dr. F. Fischel records the isolation of two 
micro-organisms from the blood of persons suffering from influenza. 
* Comptes Rendus, cxii. (1891) pp. 251-3. t Bot. Ztg., xli. (1891) pp. 313-5. 
X Nuov. Giorn. Bot. I tal., xxxviii. (1891) p. 296. 
§ Beitr. z. Biol, der Pflanzen (Cohn), v. (1890) pp. 245-88 (1 pi.). 
|| Zeitscbr. f. Heilkunde, xii., 1891. See Centralbl. f. Bakteriol. u. Parasitenk., 
ix. (1891) pp. 611-15. 
