310 SHEAR: NEW SPECIES OF FUNGI 
Gibbera, he has “ G. obturata,” citing the original description of 
Sphaeria obturata,as in the other case, but not the specimen. 
This seems to indicate that he regarded the variety not only as a 
separate species, but as belonging to a different genus. He used 
the same name in both cases, instead of taking up his varietal 
name, thinking, perhaps, that no confusion would arise from such 
duplicate use of the name when placed in different genera. The 
plant has been well described and figured by Starback (Z. ¢.). 
There may be some doubt as to whether this plant is a true Sporo- 
nema. Sporonema was a monotypic genus founded by Desmazieéres 
in 1847 on S. phacidioides. 
The genus C/interium was described by Fries in 1849 and the 
type specified: ‘“‘Typus Sph. Sclerotium Schwein. et al. Americ.” 
Until this species of Schweinitz is better known it will be im- 
possible to say whether it is congeneric with Fries’ plant or not, 
but, judging from the description, it is not, and hence this plant 
would necessarily be referred to some other genus. 
PLAGIORHABDUS* gen. nov. 
Pycnidia containing somewhat irregular chambers or cavities 
which usually unite and open through a rather large, distinct 
ostiole, usually covered by a thin, effuse, black, or coriaceous 
stroma consisting of the modified tissue of the host ; spores hyaline, 
continuous, with the oblique sporophore remaining attached in the 
form of a basal appendage. 
A genus of the order Sphaeropsidales of the imperfect fungl. 
The type of the genus is P. Crataegi. 
Plagiorhabdus Crataegi sp. nov. 
_ Stroma thin, black, effuse, formed beneath and within the 
epidermis, surface slightly rugose ; pycnidia thick-walled, irregular 
in size and shape, embedded in the host and covered with the 
stromatic crust ; interior divided into more or less irregular cavities 
which open through a rather large, central ostiole ; spores hyaline, 
allantoid, usually biguttulate and provided with a slender oblique 
appendage near the basal end of the spore, consisting of the spore- 
phore which is abstricted at its base and remains attached to the 
spore, which is 9-12 x 3-4 p, appendage 12-20 x I #u. 
a Ee eae 
¥* Pleot 1); . : : : 
g que, and rhabdos d, in allusion to the oblique appendage of 
