790 GEOLOGICAL SURVEY OF THE TERRITORIES. 



FegateJIu conicq^ Corda. — Upper Tetou Cafioii, July 28 ; Lower Fire- 

 Bole Basin, xiiigust. 



LICHENS. 



Determined by Henry Willey, Esq. 



[The order is that of Tuekerman's Genera Lichcnum.] 



Evernia vulpina, Wulf. — On trees at the Grand Falls of the Yellow- 

 stone. Fertile. (1.) 



Usnea trichodca, Ach. — In some of the specimens the fibrils are tipped 

 with minute .black j)oiuts resembling spermogones, but no sperniatia 

 could be detected. (U.) 



Alectoriajiihata, Fr. — Shoshone J^ake, September. Infertile. (3.) 



Alectoria jnhata, Fr., var. Implcxa, Fr. — On branches of Coniferai. 

 Infertile. (3rt.) 



Thelosckisfes jxtrict i nns, (L. Desf.) Xyl., var. lycJmcus, Schasr. — On dead 

 wood, Jackson's Lake, September. (4.) 



Farmelia saxatilis, Ach. — Fragments. Infertile. (5.) 



Parmelia confiperm, Ach. — Infertile fragnients. (C) 



FarmelUi physodeH, Ach. — On branches. (7.) 



PatmcJia oUracea, Ach., var. excifipvrata, (D.N.) — Very small and scanty 

 specimens on dead Avood. (8.) 



UmhilicariajMJijpJiijUa, Ilolfm. — Shoshone Lake, September. Infertile. 

 (9.) 



Umhilicaria eylindrica, Ach.(?) — Infertile- (10.) 



Umbilicciria hirsuia^ x\ch. — Infertile. (11.) 



TJmhilicaria rugi/t;ra, Nyl. — Teton Mountains, elevation 12,000 feet, 

 July 29. (12.) 



Feltiqera aphthosa, Hoffm. — Mystic Lake, near Fort Ellis, Montana, 

 July. (13.) 



Feliigera canina, Hoffm. — Teton Cauon; hot springs, and elsewhere. 

 (14.) 



FcJiigcra canina^ Hoffm., var. spuria^ Ach. — Teton Canon. (14 a.) 



tioJorina saecata^ Ach., var. spongiosa, Nyl. — On the earth among Al- 

 gai; Canon Creek, Idaho, September, (i-ih.) 



Fiacodium dadodes^ Tuckerm. — Teton Mountains. Infertile. (15.) 



Flacodium coralloidcs, Tuckerm. — Teton CaHou, (1(5.) 



Fiacodium viuronim, (llottra.,) D. C. — The specimens are numerous. 

 (17.) 



Fiacodium murorum D. C, var. citriiium, (Ach.) Nyl. — With the 

 above, but less abundant. (17«.) 



Fiacodium callopifjiiiuvi, Ach. — The specimens are numerous. (18.) 



Fiacodium peliopliyllum^ Tuckerm., (Genera, p. 108.) — Thallus crustace- 

 ous and white at tlie center, at the circumference laciniate linear mul- 

 titid, glaucous fuscesceut. Apothecia central crowded, the margin en- 

 tire, disk-plane white, pruinose, cracked. Paraphyses 'articulate. Hy- 

 meuial gelatine blue with iodine. Spores polar-bilocular, .OlG-21 min. 

 long, .008-10 min. wide. On rocks. Fort Ellis, Montana. (19.) 



The specimens are scanty, but I venture to refer it as above, though 

 I have only seen the brief description cited. 



Fiacodium variahilc, (Fers.,) Nyl.(?) — Thallus tartarious, rimose areo- 

 late, whitish. A])othecia sessile, the disk black. Spores polar-bilocular, 

 .015-18 min. long, .007-9 min. wide. (20.) 



The single fragment is very small, and hardly sufficient for satisfac- 

 tory determination. 



