( 297 ) 
This departs from the usual characters of Lepiostromella 
in the constricted spores that finally separate at the septa. 
MELANCONIACEAE 
Cylindrosporium Californicum sp. nov. 
Occupying indeterminate brownish areas often involving 
half or more of the leaf-surface; ascervull epiphyious: 
abundant, covered by flesh-colored waxy masses of exuded 
conidia, 0.5 mm. in diameter; conidia cylindrical, eerie 
irregularly curved, 35-40 x 3-4/4. 
On living leaves of Fraxzuus Oregana, Stanford Univer- 
sity, California, Oct., 1902, Abrams. Communicated by C. 
F. Baker, no. 2771. 
This same fungus has been distributed by McClatchie, no. 
895, under the name of Cyl/ndrosportum mimor E.& K. It 
differs from that species in the much larger indefinite spots 
and in the conidia which are about the same length but twice 
the diameter. 
BoOLETACEAR. 
Boletus fiaviporus sp. nov. 
Among decaying oak leaves; pileus 6-9 cm., rather thin, 
convex to expanded, shining chestnut-brown, smooth, viscid, 
but not glutinous; hymenium plane, usually deeply depressed 
around the stipe but decurrent for nearly 1 cm. in anastomos- 
ing lines, bright lemon-yellow when young becoming a deep 
dark yellow or flavid with age (retaining this color in the 
dried specimen), pores angular, small (t mm.), walls thin; 
spores yellow, narrowly elliptical, about 15 x 6y: stipe ex- 
annulate, 6-9 cm. x 18 mm., subequal or slightly ventricose, 
yellowish and smooth or marked with glutinous granules 
above, tomentose and white stained with brick-red below, 
solid; flesh whitish to brownish, unchanging, mild. 
Stanford University, California, November 11, 1gor, C. 
F. Baker, no. 131. 
This striking species evidently belongs to the section Pscz- 
pelles although differing from the usual sectional characters 
in the deeply depressed hymenium and the reticulation at the 
apex of the stipe. It is remarkable for retaining so well the 
intense yellow color of the pores in the dried specimens. 
