464 
astomous, 150 » diam., collapsing above, black, clothed, especiaily 
below, with short, spreading, continuous, brown, tapering hairs 
20-40X 3 4; sporules abundant, globose or ovate, 8-14 (mostly 
10-12 y) in the longer diameter, hyaline. 
. HAPLOSPORELLA MICROSPORA FE. & E. 
On bark of dead Quercus undulata, Greenhorn, Col., July, 
1897. (Bethel, 335.) 
Perithecia minute, ovate, crowded in a black pulvinate ellip- 
tical or orbicular stroma 1-2 mm. diam., their apices slightly 
prominent above; sporules oblong-elliptical, subacute, 6-7 X3 yp. 
BOTRYODIPLODIA BETULINA Ell. & Dearness. 
On birch bark, London, Canada, Aug., 1897. (Dearness, no. 
2496.) ; 
Perithecia seated on the inner bark and erumpent through the 
epidermis in crowded clusters of 4-10 together, or here and there 
solitary, depressed globose, 400-500 » diam., with a papilliform 
ostiolum; sporules elliptical, slightly constricted at the septum, 
15-22 10-12 p (sec, Dearness reaching 25-30 yp long). 
B. valsoides (Pk.) also on birch bark, is said to have the perithe- 
cia buried in the inner bark, with the ostiola elongated and joined 
in an olivaceous stroma and must be different from this. 
AscocHyTA Hansenr E. & E. 
On leaves of Arbutus Menziesti, Amador Co., Calif. (Geo. 
Hansen, no. 1507.) 
Spots amphigenous, irregular, definite, 2-10 mm. diam., livid- 
purple above, paler and subrufous below; perithecia hypophyl- 
lous, erumpent, convex, papillate, 120-150 # diam.; sporules ob- 
long-cylindrical, slightly curved, brownish, obtuse, uniseptate, not 
constricted, occasionally 2-septate, 15-206 p. 
AscocnyTA FraseraE E. & E. Bull. Torr. Bot. Club, 289. 
1897. Specimens from Mt. Richtophen, Colo. (C. F. Baker, no. 
414), have the perithecia larger, reaching nearly 1%4 mm. diam., 
and clothed around the base with a fringe of coarse short rudi- 
mentary hairs. 
CAMAROSPORIUM ROSELLINIOIDES E. & E. 
On dead branches of Sigelovia or Gutierresia, Colo., June, 
1897. (Bethel, no. 310 partly. ) 
Perithecia erumpent-superficial, scattered or subseriatein cracks 
