792 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Lecidea sjnlota, Fr. — A single specimen. (40.) 



Lecidea pohjcarpa^ Flk. — A single specimen. (47.) 



Lecidea atro-hrimnea, (J). C.,) ScluEr. (48.) 



Lecidea fusco-atra, (Acli.,) Fr. (?) — A single specimen, about which I 

 am not certain. (19.) 



Lecidea manilUaris, (Gonau Schaer.) — On the earth. New to this con- 

 tinent. (50.) 



Lecidea. caulescens, Auz. — A single fragment. (51.) 



Buellia myriocarpa, D. 0. — On dead wood. (52.) 



Buellia 'X)etr(va^ (Fl.,) var. geminata, (Nyl.) — A single specimen. (53.) 



Buellia petr tea ^ (Jt^l-?) ^'^i'- Montagnei, (D. 0.) — A single specimen. (53«.) 



Acolium — (?) — Thallus verriicose, the verrucai turgid, glaucescent. 



Apothecia innate-sessile, on the apex of the verrucre, the disk-plane 

 surrounded by a cupula, black proper exciple, with no traces of a thal- 

 lium margin. Hypothecium white. Spores bilocular, .004-23 rain, 

 long, .009-11 min. wide. A few specimens occurred on dead wood. 

 Perhaps a new species. (54.) 



JEJndocarpon miniatiim^ (L.) Sch?er., var. complicatum, Sclnier. (55.) 



Endocariion pusillum, Hedw. — Two or three squamules, on the earth. 

 (56.) 



There are five or sis other lichens in the collection, but infertile and 

 insufficient for determination. 



PUNGI. 



Determined by Charles H. Peck, Esq. 



Agaricus geophyllus^ Sow. — Teton Caiion, July 24. 



Thelephora terrestris^ Fr. — Along the Yellowstone. 



Lycoperdon pyriforme, Schaeft".— Near Yellowstone Lake, August 23. 



Melamsora salicina. Lev,— Hen/^V\yaters of Snake River, September 11. 



JEcidium piiratam, Schw. — Head-waters of Snake River, September 11. 



^G'-iZa [Macropodes) vulcanalis, n. sp. — Oup lieshy, funnel-form, stipi- 

 tate, crenate on the margin, smooth when fresh, nigulose and more or 

 less brown when dry ; hymenium pale orange ; stem slender, solid, 

 smooth, brown ; asci cylindrical; paraphyses slightly thickened at the 

 tips ; spores elliptical, smooth, 0.0004-O.OOOG inch long, 0.0003 inch broad. 

 Plant, C-10 lines high ; cup 4-G lines broad. Ground. Extinct vol- 

 cano, Snake River, July IC; Twin Buttes. 



HysteriumPinasiri, Fr. — Near Yellowstone Lake, August 23. On pine 

 leaves with the following : 



Sphwria {Byssiseda') Goidtcrij n. sp. — Subiculum effused, indeterminate, 

 brown ; peritliecia small, gregarious, subglobose, fragile, involved in the 

 subiculum, the ostiole prominent, naked, irregular, rough, black; asci 

 fugacious ; spores uuiseriate, uniseptate, constricted in the middle, 

 colored, 0.0008-0.001 inch long, 0.0003-0.00035 inch broad. Leaves and 

 branchlets of pines. Near Yellowstone Lake, August. The soft, almost 

 cottony subiculuui creeps extensively over the leaves, binding them to- 

 gether in masses, and sometimes presenting upon the surface a shining 

 membranous appearance. The perithecia are closel^^ invested by it, the 

 rather large ostiola alone protruding above it. Dedicated to its dis- 

 coverer, J. M. Coulter. 



Clavaria forinosa, Pers. — Jackson's Lake, September. 



Ocaster hygrometricus, Pers. — No locality. 



ALG^. 

 Zygnema fontana, (?) — Common in Henry's Fork of Snake River. 



