100 
Journal of Mycology 
[Vol. 10 
Lachnum atropurpureum Durand n. sp.—Plants solitary 
or gregarious, stipitate, single or occasionally several cups (1-6) 
at the summit of a common stem. Disk concave, pale purple, f-l 
mm. diam., externally dark purplish brown, paler toward the 
margin, clothed densely with hairs which are pale purple by 
transmitted light, cylindrical, smooth, closely septate, rather 
thick walled, paler toward the tips, up to 80/* long, 5/x thick; stem 
slender equaling the diameter of the cup. Asci clavate-cylindri- 
cal, 40-50 x 5-6/*, apex rounded, scarcely narrowed, not blue with 
iodine. Spores 8, uniseriate, hyaline, smooth, continuous, ellip¬ 
tical to elliptical-oblong, 6-8 x 2.5-3 P Paraphyses scarcely longer 
than the asci, narrowly lanceolate above, acute, 3-4/* thick. 
On Eucalyptus, Stanford Univ., Cal., E. B. Copeland. C. F. 
Baker, Plants of the Pacific Slope, no. 2724. Com. F. S. Earle. 
A beautiful species peculiar in the often clustered cups, the 
purple tint of every part, and the small spores. Dasyscypha 
eucalypti (Berk.) Sacc., from Tasmania, is quite different. The 
often branching stem is a character shared by such species as 
Dasyscypha pygmaea and D. comitessae. It is suggestive of the 
condition in Cordierites, but the other characters are those of 
Lachnum. 
Dermatea crataegicola Durand n. sp—Plants erumpent, 
solitary or cespitose, 2-4 together arising from a common stroma, 
narrowed to a short thick stem-like base, .5-1 mm. in diameter, 
orbicular or irregular from mutual pressure. Disk pruinose, 
olivaceous, externally meally-pruinose, rhubarb-color; margin ob¬ 
tuse ; crushed flesh rhubarb-color. Asci stout, clavate, apex 
rounded, not blue with iodine, short stipitate, at first filled with 
homogeneous granular protoplasm, 150-165 x 25-30/*. Spores 
6-8, obliquely uniseriate or biseriate, hyaline, smooth, continuous, 
oblong-elliptical, with a large central vacuole, 35-48 x 15-17/*. 
Paraphyses hyaline, branched, cylindrical, the apices clavate- 
thickened, yellow or olivaceous-yellow, 6-8/* thick. 
On stems of Crataegus sp., London, Ontario, Oct. 18, 1903. 
J. Dearness (no. 2994). 
Related to D. olivacea Ell., but differing in the rhubarb-col¬ 
ored exterior. This may possibly be the form described by Rehm 
as Ocellaria aurantiaca var. crataegi Lasch. (Disc. pp. 135 & 
1251). That description was based on Tympanis crataegi Lasch, 
in Rabenhorst F. Eur., no. 353. But the specimen under this 
number in the Cornell Herbarium certainly does not agree with 
the plant described above, being densely cespitose, whitish prui¬ 
nose externally, and having the habit and appearance of Tym¬ 
panis conspersa. Again, our plant may be Pezicula crataegi 
(Awd.) Fckl., Symb. Myc. Nacht. II. p. 56, but we cannot know 
because this species has never been described. Rehm ( 1 . c.) 
makes the Pezicula crataegi Fckl. a synonym of the Ocellaria 
mentioned above. This again is uncertain for the reason stated. 
