DURAND, JAMES, AND ASHMEAD ON ARCTIC PLANTS. 255 



II. — Crtptogamous Plants. 



1. LycopodiacecB. 



Lycopodium annotinum, L. Tessuissak. 



8c 



juniperinum, 



By T. P. James. 

 Mnium rugicum, Bland. 

 M. rostratum, Schw. 

 Meersia Albrotinii. 

 Bartramia (aff. calcareae). 

 Conostomum boreale, Swartz. 

 Splachnum Worinskioldii, Brid. 

 S. vasculosum, L. 

 Hypnum uncinatum, Hedw. 

 H., aduncum, L. 

 H. oligorhizon, Br. & Sch. 

 H., n. sp. ? 



Cladonia pyxidata (L.), Fries. 

 C. furcata, var. racemosa, HofF. 

 C. ignota ? 



Lecidea geographica } Hoff. 

 Umbilicaria hyperborea ! Hoff. 

 U. ignota ? 



Verrucaria popularis, Floerk. 

 V. maura, var. striatula, HofF. 



By T. P. James. 



Plocadium elegans (Ach.), Nyl. 



Parmelia saxatilis (L.), Ach. 



P. Borreri, Turner. 



P. Stygia (L ), Ach. 



P. conspersa ? (Ehrh.), Ach. 



Dactylina arctica (Rich), Nyl. 



Stereocauion denudatum, 



Floerk. 

 S. condensatum, HofF. 



4. Algce (16). By S. Ashmead. 



Fucus vesiculosus, L. Enteromorpha compressa, Grev. 



Alaria esculenta, Grev. Solieria chordalis, Ag. 



Ulva latissima, L. Cladophora arcta. Dill. 



Laminaria phyllitis, Lam. Bryopsis plumosa, Ag. 



L. longicruris, Pylaie. Desmarestia aculeata, Lam. 



L. fascia, Ag. Chastomorpha littorea, Haw. 



L. saccharina ? Lam. Ectocarpus ? 



Rhodymenia interrupta, Grev. Sp. ignota ? 



No new species were determined ; living roots brought home 

 ceased to live in the spring at Philadelphia ; and the seeds col- 

 lected, or found in the soil brought home, failed to germinate, 

 though the Arctic soil was apparently very rich, and though 

 every care was taken. 



2. Musci (36) 



Andra3a petrophila, Ehrh. ? 

 Barbula ruralis, Hedw. 

 Orthotricum affine, Schr. 

 Grimmia spiralis. Hook. 



Tayl. 

 Racomitrium lanuginosum, 



Brid. 

 Polytrichum 



Hedw. 



Aulacomium turgidum, Schw. 

 Bryum Duvallii, Voit. 

 B. purpurascens. 

 B. arcticum, Brid. & Sch. 

 B. rutilans, Br. & Sch. 

 B. cyclophyllum, Br. & Sch. 

 B. crudum, Sch. 

 B. nutans, Schr. 

 B. palustre, L. 

 B. seneum, Blytt. 

 Mnium affine, var. 



3. Lichenes (15). 

 Alectoria bicolor (Ehrh.), Ny- 



lander. 

 A. sulcata ? (Lev.), Nyl. 

 A. ochroleuca (Ehrh.), Nyl. 

 Lecanora ventosa, Ach. 

 Neuropogon Taylori, Hook., 



Nyl. 

 Platysma cucullata, Hoff. 

 P. nivalis, Ach. 



