[Vol. 2 

 758 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



moss stems. The specific name is rather fanciful and mis- 

 leading. 



Specimens examined: 

 New York: Whitehall, C. H. Peck, type of Corticium hasale 



(in Coll. N. Y. State) ; Alcove, C, L. Shear, 1221, 

 North Carolina : Salem, SchweinitZy type (in Herb. Schw., in 



Curtis Herb., and in Kew Herb.). 



5. S. Shearii Burt, n. sp. Plate 27, fig. 16. 



Type : in Burt. Herb., and in Shear Herb. 



Fructification coriaceous, effused, dull white, drying pale 

 olive-buff, cracked, the margin determinate, entire ; structure 

 in section, 140-200 ii thick, with (1) a broad and 

 dense layer next to the substratum of longitudin- 

 ally arranged, slightly brownish, even-walled 

 hyphae 1^-2 /x in diameter, which branch and 

 curve outward at a right angle and form (2) a 

 fertile, less compact layer 60-75 /x thick of sub- 

 erect, few-branched paraphyses 3 a* in diameter, 

 of basidia at about 15-20 n below the surface, and 

 of scattered, even-walled, flexuous, cylindric- 

 clavate organs perhaps gloeocystidia 40-45 X 

 ^ ^*f ^.. 6/1, not emergent above the surface ; basidia longi- 



S. Shearii. t n o ^ k ri i 



Paraphysis tudiually Septate, pyriform, 15 X 9 /x, with sterig- 

 organ x^MO. i^^ta 18 X 3 /x ; spores colorless, simple, curved, 

 9-15 X 4^-6 /x. 



Fructifications in crevices of bark at first, 2x1 mm., at 

 length, by confluence, 7 cm. long, 1 cm. broad. 



On dead Berberis vulgaris. District of Columbia. October- 



This species is well characterized by the presence in the 

 hymenial layer of flexuous, even-walled organs, which are 

 either latex or gloeocystidia, and by the broad layer of longi- 

 tudinally arranged hyphae which shows relationship to 

 Eichleriella, although the margin is not distinctly free. A 

 few small granules are present on the hymenial surface but I 

 do not know that they are a constant character. 



Specimens examined: 

 District of Columbia : grounds U. S. Dept. Agr., Washington, 



C, L. Shear, 1238, type. 



