790 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Fegatella conica, Corda. — Upper Teton Caiion, July 28 ; Lower Fire- 

 Hole BavSin, August. 



LICHENS. 



Determined by Henry Willey, Esq. 



[The order is that of Tuckerman's Genera Liehenwn.] 



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

 stone. Fertile. (1.) 



JJsnea trichodea, Ach. — In some of the specimens the fibrils are tiijped 

 with minute „black points resembliug spermogones, bat no spermatia 

 could be detected. (2.) 



Alecioria jubata, Fr. — Shoshone Lake, September. Infertile. (3.) 



Alectoria juhata, Fr., var. implexa, Fr. — On branches of Couiferse. 

 Infertile. {3a.) 



Tlieloschistes pariethius, (L. Desf.) Nyl., var. lyoJmeus, Scheer. — On dead 

 w^ood, Jackson's Lake, September. (4.) 



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



Parmelia conspersa, Ach. — Infertile fragu>ents. (6.) 



Farmelia physodes, Ach. — Ou brauches. (7.) 



Farmelia olivacea., Ach., var. exasperata, (D. N.) — Yery small and scanty 

 specimens on dead wood. (8.) 



Uml)iUcariai)olypltylla, Holfm. — Shoshone Lake, September. Infertile. 

 (9.) 



Umhilicaria cylindrical Ach. (!) — Infertile. (10.) 



TJmhilicaria hirsuta, Ach. — Infertile. (11.) 



Umhilicaria rugifera^ isyl. — Teton Mountains, elevation 12,000 feet, 

 July 29. (12.) 



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

 July. (13.) 



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

 (14.) 



Feliigera canina, Hoffm., var. spuria, Ach. — Teton Caiion. (14 a.) 



Solorina saccata, Ach., var. spongiosa, Kyi. — On the earth among Al- 

 gas ; Caiion Creek, Idaho, September. (14&.) 



Flacodium cladodes, Tuckerm. — Teton Mountains. Infertile. (15.) 



Flacodium coralloides, Tuckerm. — Teton Caiiou, (10.) 



Flacodium murorum, (Ilofl'm.,) D. C. — The specimens are numerous. 



(17.) 



Flacodium murm^iim D. C.„ var. citrimun, (Ach.) Nyl. — With the 

 above, but less abundant. (17«.) 



Flacodium calloplsmum, Ach. — The specimens are numerous. (18.) 



Flacodium peliophyllum, Tuckerm., (Genera, p. 108.) — Thallus crustace- 

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

 tifid, glaucous fuscescent. Apothecia central crowded, the margin en- 

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

 menial gelatine blue with iodine. Spores polar-bilocular, .016-21 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. 



Flacodium variahile, (Pers.,) Nyl.(?) — Thallus tartarious, rimose areo- 

 late, whitish. Apothecia 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- 

 torv determination. 



