LICHENOLOGY OF ICELAND 213 
The following species have been found on the heaths of Ice- 
land: — 
Alectoria ochroleuca (fruticose; podetia-wanderer). 
— nigricans DOME NME = 
Thamnolia vermicularis | — : — 
Cladonia rangiferina ( — : — ). 
-— uncialis ( — — ). 
— gracilis ( — 3; hypothallus-wanderer [usually)). 
= turgida ( IQ u eh. 
— fimbriata ( = : ? = 
— cariosa ( = : == ) 
= pityrea (RE “== hr 
— coccifera ( — 3 == ). 
Stereocaulon paschale (  — ; podetia-wanderer). 
— denudatum  ‘ — € — ). 
Sphærophorus fragilis = : — ). 
Cetraria aculeata ( — - — ) 
— islandica (foliaceous; erect). 
— nivalis ) 
— Fahlunensis 
— hiascens _ ; erect). 
Peltigera aphtosa — ; procumbent). 
— venosa ( — - — 
— rufescens | = ; = 
= lepidophora 
Dermatocarpon hepaticum 
Solorina saccata = ip 
Leptogium lacerum — : — » 
Lecanora tartarea (erustaceous). 
Psoroma hypnorum == 
Pertusaria xanthostoma — 
— oculata — 
Caloplaca pyracea — 
= Jungermanniæ = 
— vitellina i — 
Pannaria brunnea — 
Rinodina mniaræa v. cinnamomea — 
Bacidia flavovirescens — 
— umbrina — 
Baeomyces byssoides = 
Buellia scabrosa — 
— parasema v. muscorum — 
Lecidea vernalis — 
— helvola — 
— elæochroma v. muscorum — 
— assimilata — 
Lepraria FE 
5 
— ; procumbent). 
SØN NON PS 
Nr 
er À et 
N IN oncle 
~ 
To these must probably be added almost all the other species 
which have been found, some by me on. the ground in other plant- 
