ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
527 
Hirsutella, a new genus of Entomogenous Hymenomycetes.* — 
M. N. Patouillard describes under this name a new genus of Olavarieae, 
with the following diagnosis : — Homobasidial Hymenomycetes, in the 
form of simple or branched, erect, rigid, almost coriaceous clubs ; 
hymenium amphigenons, distinct ; basids nearly or quite sessile; sub- 
hymenium 0 ; sterigmas 1 or 2, subulate, greatly elongated ; spores 
colourless. The species on which the genus is founded, H. entomophila, 
was found in Ecuador parasitic on a coleopterous insect allied to the 
Chrysomeleae, the dead body of which was fixed by the mycele of tho 
parasite to the lower surface of a leaf. The basids differ in form from 
that of most Clavarieae, being regularly ovoid and narrowed at both 
ends. The single sterigma is inserted at the summit of the basid, and 
bears a single spore at its apex. M. Patouillard proposes to refer to 
the same genus Pterula serosa Peck, and Typhula gracilis Berk, and 
Desm. 
Septobasidium, a new genus of Hymenomycetes.t — M. N. Patouil- 
lard describes under this name a new genus of heterobasidious Hymeno- 
mycetes, founded on Thelephora pedicellata , to which is added also a 
new sp , S. velutinum. The genus is characterized by being filamentous 
and coriaceous, not gelatinous, with a distinct hymene, the basids of 
which are at first simple and globular, afterwards cylindrical and sep- 
tated transversely, straight or curved, bearing the sterigmas on their 
convex portion. 
New Genera of Gastromycetes.| — Mr. A. P. Morgan describes the 
two following new genera of puff-balls from the United States. 
Bovistella. Myceles funicular, rooting from the base; peridium 
sub-globose, with a well-developed base ; cortex a dense floccose sub-per- 
sistent coat ; inner peridium thin, membranaceous, dehiscent by a regular 
apical ostiole ; sub-gleba cellular, cup-shaped above and definitely limited, 
persistent ; capillitium originating within the tissue of the gleba, the 
threads free, short, several times dichotomously branched, the main stem 
thicker than the diameter of the spores, branches tapering ; spores small, 
globose or oval, even, pedicellate. 
Catastoma. Mycele filamentous, proceeding from all parts of the 
surface ; peridium sub-globose, without a thickened base ; cortex a fragile 
coat of loosely interwoven hyphae ; capillitium originating from the 
inner surface of the peridium ; spores globose, warty, pale brown, sessile 
or pedicellate. 
Protophyta. 
a. ScMzophycese. 
Schmidt’s Atlas der Diatomaceen-Kunde. — The last part of this 
magnificent work (Heft 43, 44) comprises 8 plates (169-176) in which 
are illustrated species belonging to the genera Aulacodiscus, BiddulpJiia , 
Grayia , Actinoptychus, Truania , Actinodiscus , Triceratium , Lithodesmium ’ 
Trinacria , Navicula , Melosira , Paralia, and Trochosira. 
* Rev. Mycol., xiv. (1892) pp. 67-70. 
t Journ. (!e Bot. (Morot) vi. (1892) pp. 61-1 (2 figs.). 
t Journ. Cincinnati Soc. Nat. Hist., xiv. (1892) pp. 141-8 (1 fig.). 
