Duranp: Stupres 1n NortH AMERICAN Discomycetses 461 
with the depth under ground of the petiole from which it springs. 
If the latter is on the surface the stem may be very short. 
Not previously reported from America. 
Ciboria sulfurella (E. & E.) Rehm, zx “iz. 
Helotium sulfurellum E. & E. Bull. Torrey Club, 10: 98. 1883. 
Bxsicc, : Ellis N. A. EF. no: 1276. 
Plants solitary, stipitate, ascoma at first vitelline- or sulfur- 
yellow, but on drying the disk becomes dark ochraceous, finally 
dark chestnut-brown or almost black, at first globose and closed, 
then expanding and becoming plane with a slight margin, waxy- 
membranous in texture, I-4 mm. in diameter; exterior yellow, 
becoming chestnut, paler than the disk, furfuraceous and longitu- 
dinally striate ; stem 1 mm. to 3 cm. long, slender and flexuous, 
tapering downward, darker and thinly tomentose below; cortex 
parenchymatous, cells about three times as long as broad, those 
of the sides and margin of the cup rounded, about Io in diam- 
eter ; medullary portion of the stem and cup of slender, loosely 
interwoven hyphae ; tomentum of slender threads, 4 y in diameter. 
Asci evenly clavate, apex slightly narrowed, rounded, becoming 
pale blue with iodine, 75-90 x 8-10; spores 8, obliquely uni- 
seriate or irregularly biseriate above, hyaline, smooth, continuous 
or possibly becoming —-septate at maturity, elliptical, navicular, 
9-15 x 4-64; paraphyses filiform. Flesh of the cup chestnut- 
brown when crushed. 
On partly buried petioles of Fraxinus, West Chester, Pa. ; not 
uncommon in central and western New York, in autumn, occur- 
ring in moist woods, ravines and swamps where the host abounds. 
(Herb. Cornell, nos. 5635, 57 16). In my experience the species 
is confined to ash petioles, but Clements reports it as growing on 
dead limbs in Nebraska. 
Ciboria sulfurella is a very distinct species, resembling C. 
luteovirescens in form, size and habit, but differing in the color, in 
the strongly furfuraceous exterior and smaller asci. There is 
never any shade of green about the present species, but the ochra- 
ceous and chestnut tones are the ones most often met with. The 
color of the crushed flesh is quite different in the two species, 
Ciboria Americana sp. nov. 
_ Plants solitary, stipitate ; ascomata cup-shaped, usually becom- 
ing plane, or with the margin reflexed and umbilicate, thin, waxy- 
membranous, pale cinnamon to brown, 3-10 mm. in diameter ; 
