Dr. W. Nylander on new British Lichens. 483 
5. Lecidea ascaridiella, Nyl. 
Thallus albidus, tenuis, opacus, rimulosus, determinatus ; apo- 
thecia nigricantia, innata, minutissima (latit. 0-09-0°15 mil- 
lim.), intus incoloria, margine quasi thallode crenatulo 
seepe coronata; spore 16-32, vermiformes (utroque apice 
- acutee), semel curvate: aut bis torte, simplices, longit. 0:025- 
- 0°030 millim.; paraphyses gracillime, non conferte; epi- 
thecium  leviter fuscescens; hypothecium incolor. ’ Todo 
- gelatina hymenea non tincta. 
_ Ad saxa calcarea prope Killarney in Hibernia (Carroll). 
Species stirpis Gyalectarum minuta, bene distincta, prope 
Lecideam leucaspidem (Kphb.) locum habens. 
6. Verrucaria hibernica, Nyl. 
Vix nisi var. V. pyrenuloidis (Mnt.), Nyl. Pyren. p.44. Facie 
fere V. nitide, sed apotheciis aggregatis, sporis multi- 
loculosis (seriebus transversis 12 et pluribus pluriloculosis) 
4-8 (longit. 0°070-0°110 millim., crassit. 0°025-0°038 mil- 
lim.). odo gelatina hymenea_ leviter vel thecz vinose 
rubescentes. 
Ad corticem Coryli avellane loci umbrosi in Killarney, 
Turk Mountain (alttt. circiter 800 pedum) legit (Sept. 1867) 
L Carroll. 
7. Verrucaria elongatula, Nyl. 
Similis V. punctiformi vel atomarie, Ach., sed sporis clavato- 
fusiformibus, longioribus (longit. 6023-0-033 millim., cras- 
sit. 0-005-0:006 millim. ), uniseptatis. Apothecia minu- 
tissima (latit. 0:1 millim. vel sepe minora); perithecium 
infra (hypothecium) incolor. Paraphyses nullz evolute. 
Ad corticem, in Hibernia, Killarney (Carroll). 
_ Forsan modo forma V. punctiformis. 
8. Verrucaria punctiformis, var deminutula, Nyl. 
Apotheciis minutissimis (latit. circiter 0°07 millim.) ; sporis. 
oblongis, 1-septatis (longit. 0°016—0°022 millim., crassit. 
0°0045 millim.), 
- In Hibernia, Killarney (Carroll). 
=y. Verrucaria leptospora, Nyl., Flora, 1864, p 487. | 
Thallo fusco vel fuscescente, tenui; sporis acicularibus, 7-9- 
la (longit. 0-040-0- 060 millim. -, crassit. 0° 003-0-004 
im.). - ; 
AY, olivacea, Borr., differt j jam perithecio integro et sporis 
longioribus. 
