414 



PHYSICAL GEOGRAPHY. 



Segestria lectissima, Fr. 

 Staurothele umbrina, Wahl. 

 Trypethelium virens, Tuckerm. 

 Sagedia lactea, Koerb. 



Verrucaria margacea, Wahl. 

 Pyrenula leucoplaca, Wallr. 

 P. lactea, Mass. 



Additional Species from Synopsis of Northern Lichens. — 1848. 



Evernia jubata, Fr. 

 E. ochroleuca, Fr. 

 E. vulpina, Ach. 

 E. purpuracea, Mann. 



Cetraria aculeata, Fr. 

 C. cucuUata, Ach. 

 C. nivalis, Ach. 

 C. sepincola, Ach. 



Nephroma arcticum, Fr. 

 N. parile, Ach. 



Peltigera malacea, Ach. 



Sticta pulmonaria, Ach. 



Parmelia Fahlunensis, Ach. 



P. stygia, Ach. 



P. incurva, Fr. 



P. centrifuga, Ach. 



P. congruens, Ach. 



P. obscura, Fr. 



P. sorediata, Tuckerm. 



P. rubiginosa, Ach. 



P. Hypnorum, Fr. 



P. cervina, Sommerf. 



P. oculata, Fr. 



P. badia, Fr. 



P. ventosa, Ach. 



P. verrucosa, Ach. 



Stereocaulon tomentosum, Fr. 



S. corallinum, Fr. 



S. paschale, Laur. 



S. condensatum, Laur. 



S. denudatum, Floerk. 



S. nanum, Ach. 



S. Fibula, Tuckerm. 



Cladonia Papillaria, Hoffm. 



C. pyxidata, Fr. 



C. gracilis, Fr. 



C. fimbriata, Fr. 



C. decoticata, Floerk. 



C. cenotea, Schaer. 



C. Despreauxii, Bory MS. 



C. amaurocrsea, Floerk. 



C. Boryi, Tuckerm. 



C. bellidiflora, Schaer. 



Bseomyces roseus. Pars. 



Biatora decipiens, Fr. 

 B. placophylla, Fr. 

 B. Byssoides, Fr. 

 B. ichmadophila, Fr. 



B. ochrophaea, Tuckerm. 



Lecidea vesicularis, Ach. 

 L. Wahlenbergii, Ach. 

 L. flavo-virescens, Fr. 

 L. panaeola, Ach. 

 L. confluens, Schxr. 

 L. melancheima, Tuckerm. 

 L. sabuletorum, Fr. 



Umbilicaria pustulata, Hoffm. 



U. polyphylla, Hoffm. 



U. proboscidea, DC. 



U. hirsuta, Ach. 



U. hypoborea, Hoffm. 



U. erosa, Hoffm. 



U. Muhlenbergii, Ach. 



Calicium phaeomelanum, Tuckerm. 



C. melanophasum, Ach. 



Endocarpon fluviatile, DC. 



