208 OLAF GALLOE 
Solorina saccata (foliaceous lichen; fertile). 
Psoroma hypnorum (crustaceous lichen; fertile). 
Lecidea elæochroma v. muscorum (crustaceous lichen; fertile). 
Bæomyces byssoides (crustaceous lichen; sterile). 
Lecanora tartarea ( — ; sterile and fertile). 
Buellia parasema v. muscorum (crustaceous lichen; fertile). 
Caloplaca Jungermanniæ (crustaceous lichen; fertile). 
Lecidea vernalis ( = Bel: 
—  assimilata ( = HU yh 
Rinodina mniaræa v. cinnamomea (crustaceous lichen; fertile). 
In all, 9 crustaceous lichens, 7 foliaceous lichens and 6 fruti- 
cose lichens. | 
I observed a similar damp mountain-heath, but smaller in ex- 
tent, on Husavikrfjall near Skjalfandi (North Iceland). Here also 
the phanerogamic vegetation consisted mainly of Empetrum (F °/o 
100) and Cyperacee (F °/o 100), as also of Vaccinium uliginosum (F °/o 
80), Azalea procumbens (F °/o 80), Salix spp. (F °/o 40), grasses (F °/o 
20), and some Alchemilla alpina, — also lichens (F °/o 100). Here 
also the heath was knolly, and all the lichens occurred upon the 
knolls. The crustaceous lichens were dominant. 
The following species occurred: — 
Stereocaulon denudatum (fruticose lichen; sterile). 
Cetraria hiascens (foliaceous lichen; sterile). 
Peltigera lepidophora ( — ie A 
— aphtosa ( - = a) 
Psoroma hypnorum (crustaceous lichen; fertile). 
Lecanora tartarea ( — ; sterile). 
Bacidia flavovirescens ( == en! 
Lecidea assimilata ( — : fertile). 
Beeomyces byssoides ( — ‘ sterile): 
(An undeterminable, sterile crustaceous lichen). 
(Lepraria). 
There still remains to be mentioned a small tract of very wet 
heath which was observed on Vaölaheidi, on the mountains between 
Eyjafjördur and Fjoskädalur, where the plant-growth on the 3rd of 
July, 1913 had recently been bared of snow and was just coming 
into leaf. 
The soil was wet, peaty and springy from the roots of the 
plants, and was partially covered with Cyanophyce®. The phanero- 
gamic vegetation, which was very low in growth and poorly deve- 
loped, consisted of dwarf willows (F °/o 95), Cyperaceæ (F °/o 85), 
Cassiope hypnoides (F °/o 45), Alchemilla alpina (F °/o 25) and a few 
others which were not very conspicuous (e. g. Azalea procumbens, 
miettes 
