1898—1902. No. 21.] LICHENS. 15 
Arthonia Acn. 
Arthonia fusca Mass. — Tu. Fr. Spits. p. 46. —Spitsb.— On stone. 
Arthonia excentrica Tu. Fr.— Atma. Arth. Scand. p. 55. — Spitsb. 
— Over moss. 
Arthonia trabinella Tu. Fr. — Atmo. Arth. Scand. p. 30. —.Greenl. 
— Corticolous. 
Arthonia proximella Nyt. — Tu. Fr. Arct. 205.— Greenl., Icel. — 
Corticolous. 
Arthonia punctiformis Acu.— Atma. Arth. Scand. p. 42. — Icel. — 
Corticolous. 
Xylographa Fr. 
Xylographa parallela Acu. — Tu. Fr. Arct. p. 242. — Greenl. — 
Old wood. 
Lecideales. 
Rhexophiale Tu. Fr. 
Rhexophiale coronata Tu. Fr. — Tu. Fr. Arct. p. 205. — Greenl., 
Spitsb. — Over earth and moss. 
Gyalecta Acu. 
Gyalecta cupularis Kuru. — Tu. Fr. Arct. p. 140.— Icel. — Over 
rocks and moss. 
Racodium E. Fr. 
Racodium rupestre Pers. — Zautsr. Flecht. p. 128. — Greenl., Icel. 
— Over rocks. 
Secoliga Norm. 
Secoliga foveolaris (Acu.) Ker. — Tu. Fr. Arct. p. 138. — Icel. — 
Over moss and earth. 
Secoliga Peziza (Mont.) Anzt. — Tu. Fr. E. Pol. Exp. p. 367. — Am. 
— Over turfy earth. 
Lecidea Acu. 
Lecidea aglaea Smrrr.— Tu. Fr. Scand. p. 534. — Greenl., Spitsb., 
Icel. — E. P.S.N.: King Oscar Land, Goosefjord (39). — On stone. 
Lecidea albocaerulescens (Wutr.) Scuarr. — Tu. Fr. Scand. p. 508. 
Greenl., Spitsb., Icel. — On stone. 
Lecidea alpestris Smrvt. — Tu. Fr. Scand. p. 536. — Am., Greenl., 
Spitsb., Icel, — Over earth. 
