50 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Collected along the northern boundary at Beaudette and Emo. On cedars in 
swamps. 
Elsewhere in North America in British America and New England. Also in 
Europe. ; 
Calicitum phaeocephalum of the preliminary reports. 
2a. Chaenotheca phaeocephala trabinella (Ach.) Fink. 
Calicium xylonellum trabinellum Ach. Meth. Lich. 93. 1803. 
Thallus of smaller and scattered granules and often disappearing; stipes commonly 
longer. 
With the last and perhaps more common. 
Not known elsewhere in North America. Found also in Europe. 
Calicium phaeocephalum trabinellum of the preliminary reports; Calicium trabinel- 
lum of the reports is likewise the same. 
3. Chaenotheca trichialis (Ach.) Th. Fr. Nov. Act. Soc. Sci. Ups. III. 3: 351. 1861. 
Calicium trichiale Ach. Lich. Univ. 243. 1810, 
Thallus from ashy varying toward yellowish green or sea-green, squamulose-granular 
asin the last, but the granules smaller and usually more scattered; stipes black or black- 
ish brown, 0.3 to2 mm. in length; apothecia at maturity with a very convex disk, giving 
the whole structure a globose-lenticular form, of about the same size as in the last, both 
the disk and the exciple dark brown, or the exciple ashy-pruinose below; hypothe- 
cium dark brown; hymenium pale below and brownish above; paraphyses coherent 
and indistinct in the material examined; asci cylindrical; spores spherical, brown or 
brownish, 2.5 to 5 # in diameter. 
Collected in northeastern Minnesota at Rose Lake, Snowbank Lake, and at Beaver 
Bay. On coniferous wood. 
Elsewhere in North America at New Bedford, Massachusetts, and in Quebec and 
Ontario. Known also in Europe. 
Calcium trichiale of the preliminary reports. 
3a. Chaenotheca trichialis stemonea (Ach.) Fink. 
Calicium trichiale stemoneum Ach. Lich. Univ. 243. 1810. 
Thallus thin and scurfy, yellowish or yellowish green, otherwise as above. 
Once collected, at Ely. On pines. 
Not known elsewhere in North America. Found also in Europe, 
Calicium trichiale stemoneum of the preliminary reports. 
3b. Chaenotheca trichialis cinerea (Pers.) Fink. 
Calicium cinereum Pers, Icon, Deser. Fung. 58. 1800. 
Thallus granulose; stipes commonly brown and apothecia of the same color or ashy- 
pruinose below, as the stipes may also be; spores perhaps larger. 
The most common form of the species, no doubt occurring throughout the coniferous 
woods in northern Minnesota. On living and dead coniferous wood. 
Not known elsewhere in North America. Found also in Europe, 
Calicitum trichiale cinereum of the preliminary reports. 
4. Chaenotheca brunneola (Ach.) Mill. Arg. Mém. Soc. Phys. Hist. Nat. Genéve, 
16°: 360. 1862. 
Calictum brunneolum Ach. Vet. Akad. Hand]. 1816: 279. 1816. 
Thallus very thin, ashy or greenish, of minute granules, evanescent and seldom 
seen; stipes very slender and often much elongated, becoming 5 mm. in length, black; 
apothecia as those of the last species above as to form, color, and rarely as to pruinose 
condition; hypothecium brownish black; hymenium pale below and brownish above; 
paraphyses distinct and frequently branched in the material examined; asci-cylin- 
drical; spores spherical or spheroidal, 2.5 to 4 « in diameter, the longer dimension 
