[Vol. 13 

 300 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



House S: J. Rubinger (in N. Y. State Mus. Herb., and Mo. Bot. 



Card. Herb., 7706); Round Lake, C. H. Peck, (in N. Y. State 



Mus. Herb., and Mo. Bot. Card. Herb., 42930). 

 Pennsylvania: Freeland, C. R. Orton & G. E. Broadhent, comm. by 



L. 6. Overholts, 5166 (in Mo. Bot. Card. Herb., 56359). 

 Maryland: Takoma Park, C. L. Shear, 963. 

 Michigan: East Tawas, J. R. Weir, 317 (in Mo. Bot. Card. 



Herb., 6961); New Richmond, C. H. Kauffman, 86 (in Mo. 



Bot. Card. Herb., 54327). 

 Wisconsin : Star Lake, /. /. Neumann, comm. by H. von Schrenk 



(in Mo. Bot. Gard. Herb., 42734). 

 British Columbia: Kootenai Mountains near Salmo, J. R. Weir, 



503, 511 (in Mo. Bot. Gard. Herb., 63722, 5900). 



105. C. atrovirens Fries, Epicr. 562. 1838; Hym. Eur. 651. 

 1874; Berkeley, Outl. Brit. Fung. 274. 1860; Sacc. Syll. Fung. 

 6: 614. 1888; Massee, Linn. Soc. Bot. Jour. 27: 155. 1890; 

 Bresadola, Ann. Myc. 1: 96. 1903; Maire, Brit. Myc. Soc. 

 Trans. 3: 172. pi 16. 1910; Bourdot & Galzin, Soc. Myc. Fr. 

 Bui. 27: 243. 1911; Rea, Brit. Basid. 677. 1922. 



Thelephora atrovirens Fries, Elenchus Fung. 1: 202. 1828. — 

 Lyomyces caerulescens Karsten, Finska, Vet.-Soc. Bidrag Natur 

 och Folk 37: 154. 1882. — Hypochnus chalybaeus Schroeter, 

 Krypt.-Fl. Schlesien 3: 416. 1888. 



Fructifications irregularly effused, thin, floccose-fibrillose or 

 arachnoid, greenish glaucous blue to deep bluish gray-green, 

 even, not cracked, the margin thinning out, with hyphae inter- 

 woven; in section 150-250 (x thick, colored like the hymenium, 

 composed of long, slender, interwoven, colored hyphae 2-3 [i in 

 diameter, not nodose-septate, not incrusted; no gloeocystidia ; 

 spores colored like the fructification, even, subglobose, 3-4 X 

 23^-3K |J^> borne 4 to a basidium. 



Fructifications 1-4 cm. long, 1-2 cm. wide. 



On under side of decaying bark and fallen branches. In 

 Europe, and from New Brunswick to South Carolina and in 

 Illinois. September to December. Infrequent. 



C. atrovirens is conspicuous by its fructifications blue-green in 

 all parts. It is intermediate between Corticium and Hypochnus, 

 being included in the former on account of the even spores. 



