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CONTRIBUTIONS TO BRITISH LICHEN OLOGY. 25 
P. stellaris (L.), Fr. ; f. isidiophora, JHyl = Parmelia columnaris, 
■ Tayl.- -Kerry (Tayl.in Herb. Jones). 
Lecanora Dicksonii (Ach.), Nyl.— High mountains, north of Ireland 
(Moore) ; on columnar basalt, Croghane, Killarney (Carroll). 
L. Hutchinsia, Nyl. in Flora of Regensburg, 1867, p. 326.— 
Thallus pallido-cinerascens vel flavido-cinerascens, tenuis, rimosus vel 
nnuiloso-diffractus ; apothecia rufo-testacea (latit. 0-5 milliai.), convexa, 
biatorma; sporae 8-nae, ineolores, fusiformes, 1-septatae (longit. 00 10 
-12 millim., crassit. 0-0025-0-0035 millim.); paraphyses crassuke 
(crassit. 0-0025-0-0035 millim.), nounil.il articulate, apice iacrassato 
mcolore; hypothecium incolor. Iodo gelatina hymenea cserulesceus 
(cum thecis, quit; apice intensius tinguntur).— On rocks, south of Ire- 
ful (Hutchins). — " Facies Lecidece cujusdam propinqme vemali, sed 
tneoretiee Lecanora, nam spermogonia ut in stirpe Lecanora subfnscce, 
ubi accedit ad erysibem. Sporae tenues et paraphyses crasste speciem 
distitigmmt. Spermatia arcuata, longit. 0-020 millim., crassit. vix 
HOI millim. 
L- umbrlna, Ach.— Barclay's Eock, co. Down (Jones); cliffs of 
Moher, Clare (Carroll). 
Pertnsaria velata (Sm.).— Glengariff (Jones). 
l>ecuha phaops, N yl .= Lecanora llhatica, Hepp. ; var. hyperborea, 
%1. (o/iii,).— Scotland (Jones) ; Brandon Mount and Connor Cliffs, 
belaud (Cm-roll). 
L. contentiem, Nyl., Flora, 1866, p. 371.— Thallus albidus, medio- 
tris > ru "oso-diff'ractus ; apothecia nigra, innata (latit. 0-9-15 millim.), 
plana, nonnihil smpius impressa et hide quasi margine obtuso saepe 
cincta; sporm 8-nm, ineolores, ellipsoide;e, simplices, longit. 0-027-38 
aiHini., crassit. 0-016-22 millim.); paraphyses graeilea (crassit. 
v) 0l0-00015 millim.) ; epithecium fuscescens ; hypothecium fuscum. 
elatina hymenea iodo camilesi us, dein nonnihil sordide vinose ru- 
wscens (fulvescens).— Summit of Ben Lawers, on Mica-slate (Jones). 
*acies Lecanora cinerete formae. Differt L. contention ab affini 
/ ™*<*tUM (phceops) , sports majoriius, epithecio fuscescente (in L. Phce- 
.' ca (pAafops) epithecium ceerulescens vel caeruleo-nigrescens), reactione 
,0(ilca (nam iu L. Rluet a gclatina hymenea iodo intense et persis- 
tL '»iter Ccxu-ulescit). L. pauaola differt eephalodiis, thallo hypochlorite 
C; 'leieo saltern dilute erythriniee tiucto, etc." 
l - p'otrcola, Ach.— Ben Lawers, etc., Scotland, and plentiful on the 
Ju N of the co. Antrim (Jones). 
U 
