rarely dark as the European. Externally strigose, hirsute, but not so coarse 

 as the European. Generally growing on twigs and branches to which it is 

 attached by a brown, mycelial pad. Rarely in the ground. Sometimes I 

 have found it on brush heaps far above the surface of the ground. (The Euro- 

 pean plant usually grows in the soil unattached to wood, sometimes on buried 

 or half-buried wood, but never, I think, truly epixylous. Tunica very thin, 

 early rupturing and mostly disappearing from the ripe peridiole. (The strong- 

 est point of difference between the American and the European plants is the 

 nature of the tunica). Spores 6-8x18-20, averaging slightly smaller than 

 the European form. The form "Schweinitzii," which was pointed out by Tul- 

 asne is the common form that I have always found in America. All that 

 have reached me from American correspondents, with one exception, grew 

 on wood. L. L. Perrine, North Dakota, sends me a collection that grew in 

 the ground, but which agrees with the usual American form in the thin 

 tunica. At Trexlertown, Pennsylvania, I made a collection, dark like the usual 

 European form, but otherwise as the American. 



SPECIMENS IN OUR COLLECTION. 



Canada. J. Dearness, T. N. Willing. 



North Dakota, L. L. Perrine; Wisconsin, C. E. Brown; Minnesota, Dr. J. 

 E. Crewe, Dr. M. S. Whetstone; Massachusetts, Clara E. Cummings; New 

 York, W. H. Long, Jr. ; Pennsylvania. Dr. Wm. Herbst, Miss E. Hodges, C. G. 

 Lloyd; West Virginia, C. G. Lloyd; Ohio, David L. James, C. G. Lloyd; Ken- 

 tucky, C. G. Lloyd; North Carolina, Mrs. M. A. Noble; Missouri, Dr. N. M. 

 Glatfelter; Iowa, R. E. Buchanan, J. F. Clarke; Washington, C. V. Piper. 



CYATHUS A1ONTAGNEI (Plate 107). Peridium obconic, cup- 

 shaped, 8-10 mm. high, 8 mm. broad at mouth, internally striate, ex- 

 ternally woolly, hirsute, tawny, ferruginous color, attached to the 

 matrix by a pad of tawny mycelium. Peridioles about 2 mm. in diam- 

 eter, black with a thin tunica. Spores about 12x20, elliptical in the 

 type. (In specimens from Rev. Rick they are rather ovate.) 



This species is only known from Brazil, and is marked in color 

 and habitat, growing scattered on rough bark, 25 to which it is attached 

 by a pad of mycelium. We have plants from Rev. Rick that correspond 

 to the type, excepting the spores are more ovate. 26 The external striae 

 are not so marked as in most species of this section, but are evident 

 in the type specimen, and very distinct in one collection I have from 

 Rev. Rick. 



CYATHUS NIGRO-ALBUS (Plate 107). Peridium conic, cup- 

 shaped, 6-7 mm. high, 4-5 mm. broad at mouth, externally strigose, 

 hirsute, even, dark brown, almost black color. Internally silvery white 

 (hence the name), faintly striate. Peridioles \y 2 mm. in diameter, with 

 a thin tunica. Spores elliptical, 12 x 16-22. 



I collected this species in Samoa on rotten wood. It grew densely 

 caespitose, and is strongly marked by its dark (almost black) color. 

 In a general way it is related to Cyathus Montagnei. The spores vary 



iginal collection, as well as most 



25 The specimen, fig. i, plate 107, grew on a stick, but the 

 have received from Rev. Rick, grew on the rough, tree bark. 



26 We are unable to confirm Tulasne's note that there is no line of division of the spore-bearing 

 tissue. The line in the type peridiole seems as distinct to me as in the other species. If we were guess- 

 mg, we would judge from the figure that this plant is Cyathus byssisedus as illustrated by Jun.uhuhn, 



18 



