DR. LINDSAY ON THE LlCnEN-FLORA OF GREENLAND. 299 



Kremp. ; Rittokensis, Hellb, ; coracina, Hffm, ; coniops, 

 milnb. 



Arthonia fiisca, Mass. ; clemens, Tul. 



Endocarpon (5?^^ Dermatocarpon) cinereum, Pers. ; pulvinatum, 



Th. Fr. 

 Vcrrucaria {sub Microglasna) sphinctrinoidcs, Nyl.; {sub 

 Folyblastia) theleodes, Smrf., and v. Schaireriana, Mass.; 

 Helvetica, Th. Fr,; hyperborea, Th. Fr.; bryophila, Lonnr.: 

 gelatinosa, Ach. ; sepulta, Mass. ; {sub Thelidium) pyreno- 

 phorum, Ach. ; {sub VeiTucaria)margacea, Whlnb. ; striatula 

 Whlnb.; nipestris, Schrad., v. Integra, Ni/l.; {sub Endo 

 coccus) gemmifera, Tayl. 



Collema pulposum, Bernh. ; ceranoides, Borr. ; scotinum, Ach, 



Leciophysma Finmarkica, Th. Fr, 



Pyrenopsis granatina, Smrf, 



Several, moreover, of the genera in the foregoing] list are not 

 represented in Greenland, e.g., Arctomia, Lecothecium, Hymenelia, 

 Sporostatia, Folyblastia, Bacidia, Microglcena, Thelidium^ 

 Leciophysma. 



Did the necessary data exist, it would be interesting to compare 

 the Lichen-flora of Greenland with that of the Arctic- Americaii 

 Islands — those large islands north of the American Continent, 

 intervening between Greenland and what has hitherto been known 

 as Russian America. But, as regards these islands, the necessary 

 data do not exist. Almost all we know of their Lichen-flora 

 consists of the determination by Robert Brown (of the British 

 Museum) of the collections of Parry during his First Voyage * on 

 Melville Island, f most of which Lichens are now in the Kew 

 Herbarium, where I have examined them. In that herbarium 

 I found, labelled '' Melville Island (Parry) "— 



Alectoiia bicolor ; ochroleuca ; Us?iea melaxantha. 

 divergens. Dactylino. arctica. 



Cetraria aculeata. Pertusaria glomerata. 



There are a few other Lichens, foliaceous or fruticulose, which 

 may have been collected on that or other of the Arctic- American 

 Islands ; but the labels are so vague in their reference to localities, 

 that the species to which they relate cannot be safely quoted in 

 the present category. Thus one specimen {Umbilicaria hyper- 

 borea) is labelled, "North-West Passage" (Parry) ; another, 

 *' Arctic Islets " ; a third, " Parry's Voyage to the North Pole " ; 

 others, "North Pole," or "North-Polar Expedition." Such 

 descriptions too frequently constitute all the information con- 

 veyed by the labels attached to PaiTy's Arctic Lichen-collections 



* In the Appendix to the First Voyage, 1819-20, and reprinted in Brown's 

 JBotanical works, vol. i (1866), p. 250. 



f There are probably other citations, e.^r., in the List of Dr. Sutherland's 

 collections in the "Lady Franklin" (Captain Penny), given by Churchill 

 Babington in " Hooker's Journal of Botany," iv. 276, to which I have 

 not at present access. The only quotation in my note-book is Lecanora 

 vitellina, on bone used as an implement by the Esquimo on Cornwallis Island. 



