412 . BOTAiinr. 



LICHENES. 



BY PEOF. EDWARD TUCKERMAN. 



EvERNiA VULPINA, (L.,) Ach. This licten, so abundant in the Sierras 

 of CaUfornia, was found only in a single locality in the Virginia Mountains, 

 Western Nevada, upon Juniperus occidentalis. (1,487.) 



Theloschistes paeietinus, Var. polycarpus, Fr. On Quercus in the 

 Wahsatch. (1,488.) Also Var. lychneus, Nyl. In the "Wahsatch. (1,489.) 



Parmelia olivacea, (L.,) Ach. On Cercocarpus; Wahsatch. (1,490.) 



Parhelia conspersa, (Ehrh.,) Ach. In the Uintas. (1,491.) 



Physcia stellaris, (L.) On rocks upon Antelope Island, Salt Lake, 

 with various Lecanorce and other lichens. (1,492.) 



Physcia obscura, (Ehrh.,) Nyl., Var. approaching P. puherulenta. On 

 trees in the Wahsatch. (1,493.) 



Peltigera aphthosa, (L.,) HofFzn. In the Uintas. (1,494.) 



Peltigera rufescens, (Neck.,) HofFtn. In Nevada and Utah ; on the 

 earth ; sometimes too near the next. (1,495.) 



Peltigera canina, (L.,) Hoifm. In the Uintas. (1,496.) 



Pannaria Hypnorum, (Vahl.,) Delis. Uintas ; on the earth. (1,497.) 



Placodium fulgens, (Sw.,) DC, Var. bracteatum, Ach. Carrington 

 Island, Salt Lake ; on the earth. (1,498.) 



Placodium elegans, (Link.,) DC. On rocks in Western Nevada, An- 

 telope Island, and the Uintas. (1,499.) 



Placodium vitellinum, (Ehrh.,) Nseg. & Hepp. On moss near Car- 

 son City, and on rocks in the Uintas. (1,500.) 



Placodium cerinum, (Hedw.,) Nseg. & Hepp., Var. biatorinum, Nyl. 

 On Populus, in the Wahsatch. (1,501.) 



Lecanora rubina, (Vill.,) Schasr. In the East Humboldt Mountains, 

 Nevada, and in the Uintas. (1,502.) Also Var. opaca, Ach. In Western 

 Nevada, and on Antelope Island. (1,503.) 



Lecanora muealis, (Schreb.,) Schaar. (i. saxicola, Ach.) On rocks, 

 Antelope Island. (1,504.) Also Var. GIarovaglii, Anz. Near Cargon 

 City. (1,505.) 



Lecanora subfusca, (L.,) Ach., Var. sylvestris, Nyl. (?) On Cotton- 

 wood, in the Wahsatch. (1,506.) Also Var. umbeina, Nyl. On rocks, An- 

 telope Island. (1,507.) 



