298 BR. LINDSAY ON THE LICHEN-FLORA OF GREENLAND. 



Arctic America — there is a large proportion of species in the one 

 country that does not occur in the other.* It must suffice, as an 

 illustration, to enumerate those which—- occurring in Spitzbergen— 

 have not hitherto been found in Greenland. This category in- 

 cludes, in the first place, no less than 25 now species or varieties 

 found for the first time in Spitzbergen, and described by Fries, 

 viz. : — 



T(9mm« conjungens. Buellia vilis; urceolata; con- 



Bilimbia microcarpa. vexa. 



Biatorina globiila, Flk., var. Arthonia excentrica. 



polytrichina ; tuberculosa ; Polyblastia Gothica. 



Stereocaulorum. Verrucaria rejecta ; extrema. 



Lecidea polycarpa, Korb., var, Artho'pyrenia conspurcans. 



clavigera ; ramulosa ; puUu- Sticta linita, Ach., var. com- 



lans; sulphurella ; impavida ; plicata. 



associata. Lecanora coriacea ; erysibe, 

 Sporastatia tenuirimata ; Ach.^ var. personata. 



Spitsbergensis ; cinerea, 



Sch., var. haplocarpa. 



Deducting these new species and varieties, there still remains 

 the large number of 67 species and varieties not as yet found in 

 Greenland, viz. : — 



Dufourea muricata, Laur, 



Sticta linita, Ach. 



Physcia parietina, var. aureola, Ach. 



Peltidea malacea, Ach. ; polydactyla, Hffm. 



Pannaria microphylla, Sw. ; arctophila, Th, Fr. 



Lecothecium asperellum, Whlnb. 



Arctomia delicatula, Th, Fr. 



Placodium albescens, Hffm. 



Lecanora glaucocarpa, Whlnb. ; subsimilis {sub Gyalolechia), 

 Th. Fr. ; aipospila, Wldnb. ; gibbosa, Ach,^ and var. squamata, 

 Ach. ; mastrucata, Whlnb. ; cinereo-rufescens, Ach.^ var. 

 alpina, Smrf. ; rhodopis, Smrf., var. melanopis, Smrf. ; 

 flavida, Hepp; Dicksoni, Ach.; pyracea, Ach.; oligospora, 

 Rehm. 



Hymenelia Prevostii, Fr. 



Lecidea {sub Toninia) fusispora, Hepp; {sub Bacidia) viri- 

 descens, Mass. ; venusta, Hepp ; {sub Bilimbia) syncomista, 

 Flk. ; {sub Biatorina) fraudans, Hellb. ; {sub Biatora) mis- 

 cella, Smrf. ; collodea, Th. Fr. ; Lulensis, Hellb, ; curvescens, 

 Mudd.; rupestris, Scop.; terricola, Anzi.; {sub Lecidea) 

 rhaetica, Hepp ; confluens, Web. ; tenebrosa, Fiv. ; {sub 

 Sporastatia) Morio, Ram.^ v. coracina, Smrf. ; cinerea, Sch. ; 

 privigna, Ach. ; [sub Buellia) punctata, Flk. ; caeruleo-alba, 



* Some of the deficiencies of the Spitzbergen flora are remarkable, e.g., 

 Parmelia saxatilis, physodes, olivacea, Fahlunensis ; Cladonia furcata ; 

 Lecanora glaucoma, cinerea ; UrceoJaria scruposa ; Lecidea fusco-atra, icmg.- 

 dophila ; Endocarpon miniatum. 



