Sept. 1904 ] Pyrenomycetes Scarcely Known , Etc 
227 
ZIGNOELLA EBULI Malbr. & Brun. 
Saccardo, Sylloge IX, 861. 
Growing on Sambucus canadensis. Berlese says it is Lo- 
phiostoma praemorsum Lasch. Superficially it looks like a Lo- 
phiostoma, but the perithecium opens by a pore every time. 
The old genus Lophiostoma does not work well as a distinct 
family. 
LASIOSPHAERIA ULIGINOSA (Fries). 
Starback, Bot. Not. 1893. 
(Lasiosphaeria hirsuta (Fries) var. terrestris Sacc.) 
Saccardo, Sylloge II, 191. 
I occasionally find this species growing on smooth sandy 
soil along a stream. The perithecia are gregarious; there is no 
subiculum, but each perithecium is attached to the soil by hyphae 
radiating from the base. Asci 140-160 x 18-20 mic.; spores, 
cylindric, curved, continuous, hyaline, 50-60 x 5-7 mic. 
RHYNCHOSTOMA AMERICANUM (E. & E.) 
(Rhynchostoma cornigerum Karst, var. americana E. & E.) 
N. A. Pyrenomycetes, p. 196. 
The first specimens sent to Ellis were old and broken; 
specimens found since enable me to furnish the following diag¬ 
nosis. It will be seen that the species is nearer to Rhynchostoma 
exasperans Karsten than to Rhynchostoma cornigerum. 
Perithecia large, globose-ovoid, black, superficial, closely 
crowded together and sometimes connate, seated on a thin, brown 
subiculum of densely interwoven hyphae; the thick conic rostra 
usually shorter, scarcely longer than the diameter of the peri¬ 
thecia. Asci cylindric, 8-sporous, paraphysate, 90-120 x 5-6 mic. 
with the slender stalk; spores elliptic-oblong, inaequilateral, 
brown, uniseptate, 10-12 x 4-5 mic. 
ERIOSPHAERIA INAEQUALIS Grove. 
Saccardo, Sylloge IX, 697. (Add. 1886.) 
The peculiarity of this species is that the two cells of the 
spore separate at maturity as in species of Hypocrea. I do not 
consider the accompanying Hyphomyces to be Gonytrichum cae¬ 
sium, though it is something not far away. This species is cer¬ 
tainly very closely related to Sphaeria pulchriseta Peck and two 
or three other forms. The way the species of the simple Sphaer- 
ias having septate spores are assembled into genera in the Sylloge 
is an extremely artificial construction. 
