70 
Regarding specimens of Hemiarcyria sent Mr. Morgan he says 
“your specimen is genuine H. clavata Pers. and the only one I 
ever saw.” This species seems to be common in Maine. 
Orb. ARCYRIACEAE. 
111. Heterotrichia Gabriellae Massee. E. Aubuin, Nov., 1896 
(Merrill). Growing on wood. The only specimens before reported 
are from South Carolina. Morgan says of our specimens that 
they are all right both for genus and species and that it is a re- 
markable species. We are unable to see how Lister can unite this 
to Arcyria ferruginea, which is a common species in Maine and 
very unlike the above in habit and structure. 
112. Arcyria pomiformis Rost. = A. ochroleuca Fr. = A. lutea 
Schw. Orono, 1890. (Harvey.) Mr. Morgan says “ this is a good 
species, wholly distinct from A. cinerea Pers., with which Lister 
merges it. I always get it in like your sample with only a few 
sporangia to the specimen. I-have had it only from S. Carolina 
before. It is a minute species and is certainly extremely rare in 
America.” It is not common in Maine. 
Remarks: Of aspecimen of Arcyria we sent Mr. Morgan he says 
“it is exactly A. aurantiaca Raunkier. I have his work with this 
species elaborately illustrated and it agrees exactly. The calycu- 
lus of your specimen is minutely warted, not reticulate. The 
sculpture of the thread is finer than in A. ferruginea,” 
113. Lachnobolus incarnatus A. & S. Orono and Greenfield. 
(Harvey.) Our specimens agree with what Prof. McBride de- 
scribed as the above species. Lister merges it with L. circinans 
Fr. Our form is probably a distinct American species, deserving 
a new name. 
Orb. PERICHAENIACEAE. 
114. Perichaena microcarpa Schroeter. Orono, Oct., 1896- 
(Harvey.) Only a single specimen found which was sent to Mr. 
Morgan, who says it puzzles him exceedingly, but he thinks it 
nearest to the above. He makes the following notes: “ Spores 
14-17 mic., strongly spinose, but the color is yellow-brown ; threads 
not yellow, but hyaline. I cannot discover lime anywhere; the 
wall is yellow, or when more thickened, yellow-brown. Evi- — : 
dently rare and new tc the country.” 
