ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
85 
Rabenhorst’s Cryptogamic Flora of Germany (Fungi). — Parts 34-36 
of this publication continue tbe treatment of the Pezizace® with the 
completion of the Calicie® ( Calicium and Slenocybe). The last sub- 
division of the Patellar iace®, viz. the Arthonieae, comprises the genera 
Phacopsis, Conida, Celidium, Lecidopsis, Arthonia, and Arthothelium. The 
next family is the Bulgariace®, divided into the Callorie® ( Agyrium , 
Orbilia, Calloria, and Staminaria ), and the BulgarieEe ( Ombrophila, Pary- 
phydria, Coryne, Bulgaria , and Sarcosoma). The 5th sub-order, Pezize®, 
comprises the Mollisie®, Helotie®, Eupezize®, and Ascobole®. The 
Mollisie® are again divided into the Eumollisie® (. Mollisia , Niptera, 
Belonidium, Belonopsis, Tapezia, and Trichobelonium), and the Pyreno- 
pezize®. 
Parts 45, 46 commence a monograph of the Phycomycetes by Dr. A. 
Fischer. They are divided into three series, the Archimycetes or Chy- 
tridiu®, the Zygomycetes, and the Oomycetes. The Chytridin® are 
again divided into Myxochytridin® and My cochy tridin®, and the former 
of these into Monolpidiace® or Olpidiace® and Merolpidiace® or Syn- 
chy triace®. After a general discussion of the structure of the 
Chytridin®, a full account is given of the genera belonging to the 
first family, viz. Sphserita, Olpidium, Pseudolpidium gen. n., Olpidiopsis, 
Pleotrachelus, Edrogella, and Pleolpidium gen. n. Pseudolpidium con- 
sists of species separated from Olpidium and Olpidiopsis ; Pleolpidium of 
species separated from Bozella. Under the Merolpidiace® a full account 
is given of the genera Synchytrium, Woronina, Bhizomyxa, and Bozella. 
The Monochytridin® are divided into Holocliytriace® or Ancylistace® 
(Myzocytium,Achlyogeton, Lagenidium, Ancylistes), Sporochy triace®, Bliizo- 
pliidium, Bhizidium, Bhizidiomyces, Achlyella, Septocarpus , Entophlydis 
gen. n., Bhizophlydis gen. n., Obelidium , Chytridium, Polyphagus), and 
Hyphochytriace® ( Cladochytrium , Amcebochytrium, Catcnaria, Hypho- 
chytrium ). The two new genera are separated from Bhizidium. 
Mycetozoa. 
New Myxomycetes.* — Dr. G. A. Rex establishes a new genus of 
Myxomycetes, Dianema, with the following characters : — Sporanges 
simple or plasmodiocarpous, with membranous non-calcareous walls ; 
capillitium composed of threads without characteristic thickenings, 
running entirely across the sporange, attached both to the base and to 
the opposite wall, and not joined together to form a network. He re- 
gards the genus as the single representative of a new and separate 
family, adjoining the Perich®nace® in the order Caloneme®. 
The following new species are also described — Dianema Harveyi, 
Physarum nueleatum, P. penetrale, Chondrioderma aculeatum, Stemonitis 
Weberi, S. virginiensis, S. nigrescens, Comatricha irregularis, Cribraria 
violacea, C. languescens, Trichia Andersoni, Hemiarcyria obscura, H. 
longijila, H. Varneyi, all gathered in N. America. 
The author further describes the capillitium of Hemiarcyria clavata, 
as seen with a homogeneous immersion-lens, dififering somewhat from 
the structure as previously described. 
* Proc. Acad. Nat. Sci. Philadelphia, 1891, pp. 389-98, 407-8. 
