86 TRANSACTIONS OF THE 



oblongse vel oblongo-cylindracefe simplices, "0075 — Oil X '0025 

 — -003 mm., paraphyses irregulares non distmctse. lodo gel. 

 hym. bene coerulescens. Thalamium K, leviter sed distincte 

 pixrpui'ascens. 



Ad ligna decorticata prope Killiecrankie. 



The parapbyses are rendered distinct by K. when tbey are seen, 

 as slender, irregular, and occasionally branching filaments. Gonidia 

 often conglomerate. 



Lecidea confertula, aS^. nov. 



Thallus pallide cinereus squamuloso-crustaceus, squamulis parvis 

 contigviis vel dispersis (K — C — ) ; apothecia fusca planiuscula 

 minuta (latit -2 — -25 mm.) numerosissima, ssepe contigua, obtuse 

 marginata, intus pallida; sporse Snse incolores ellipsoidese simplices, 

 •01 — "013 X 'OOSS — '007 mm., parapbyses non bene distinctse 

 fere conglutinatte fusco-clavatse ; hypothecium incolor. lodo gel. 

 hym. coerulescens dein mox vinose violacea, prsesertim thecse. 



Ad saxa, prope Killiecrankie. 



Lecidea phyllodisca. 



Thallus niger minute granulosus vel furfurellus, tenuis ssepe vix 

 ullus visibilis; apothecia nigra mediocria (latit. -8 — 1-4 mm.) 

 saepe 2 - 3-aggregata et tunc undulata, interdum conglome- 

 rata, margine nitido tenui fluxuoso vel sinuoso, intus pallide cine- 

 rascentia vel ccerulee cinerascentia [K. pvirpurascenti — (vel potius 

 roseo — ) dissoluta] ; sporpe 8n?e simplices ellipsoidese incolores, 

 •007 — -009 X -0045 — -0055 mm., paraphyses satis bene dis- 

 tinctse nigro-clavatse vel ccerulee nigro-clavatse ; hypothecium 

 concolor vel interdum obscurius (1 — 4)-zonatum. lodo gel. 

 hym. coerulescens (saltern leviter) dein mox vinose fulvescens vel 

 interdum vinose violacea. Hymenium (cum hypothecio) acido 

 nitrico purpurascens. 



Ad saxa, prope Killiecrankie. 



Affinis L. phylliscocarpse (Nyl.) 



Beneath the apothecia are often seen curious cushions composed 

 of yellowish granular matter. 



A description of this curious lichen is recorded here, rather for 

 the purpose of directing attention to a peculiar group of the 

 Lecidese to which it belongs, than with any well-founded hope 



