Dr. W. Nylander on European Lichens. 23 
V.—Notule Lichenologice. No. VII. 
By the Rev. W. A. Letcuton, B.A., F.L.S. 
In the ‘ Flora’ (1865, p. 260) Dr. Wm. Nylander describes three 
European species of Thelocarpon. 
1. Thelocarpon Laureri (Flot.). 
Apothecia globulos formantia (diam. 0°12-0°15 muillim.) citrino 
suffusos. Thecse myriospore fusiformes; spore incolores, 
oblong, simplices (longit. 0°0025-0:0040 millim., crassit. 
0:0015-0:002 millim.); paraphyses graciles sat parce et non- 
nihil irregulares. Gelatina hymenea iodo vix tincta, sed thecz 
dilutissime czrulescentes. 
Vidi specimen in Anglia lectum a Rev. Leighton (1864). 
Spore utroque apice obtusiores quam in figuris a Rev. Leigh- 
ton datis. Paraphyses (crass. 0:0015 millim.) intus guttulas 
oleosas efferentes, saepe ramoso-divise. 
2. Thelocarpon intermediellum, Ny]. 
Extus simile precedenti, sed globuli paullo majores (diam. 
0:2 millim.). Thecz myriospore; spore oblongz (longit. 
0:0035-0:0050 millim., crass. 00020 millim.), vulgo medio 
obsolete tenuiores et utroque apice obtuse incrassatule ; para- 
physes null. Gelatind hymenea iodo vinose fulvescens ; 
thecze dilute ceerulescentes. 
Ad lignum alni putrescens in Finlandia media (Norrlin) 
[1863]. 
A precedente differt magnitudine paullo majore, sporis aliis 
et defectu paraphysium. Adsunt filamenta ostiolaria brevia, 
gracilia, fasciculata in supera parte cavitatis perithecil (omnino 
sterigmata simulantia spermogonii). 
3. Thelocarpon superellum, Nyl. 
Subsimile binis preecedentibus quoad faciem externam, at glo- 
bulis nonnihil majoribus (diam. 0°25 millim.). Thecz poly- 
spore; spore ellipsoidee (longit. 0-009-0-012 muillim., 
crassit. circiter 0°0045 millim.); paraphyses graciles, elon- 
gatee, rect. Gelatina hymenea iodo non tincta, sed thece 
tote bene cerulescentes. 
Kola, in Lapponia orientali, ad lignum vetustum (N. I. 
Fellman) [1863]. 
Notis allatis, sporis multo majoribus, paraphysibus &c, facil- 
lime dignotum. 
Dr. Nylander inclines to think that our English Thelocarpon 
Laureri, described and figured by me in ‘ Annals and Mag. Nat. 
