(JIO A. HESSELBO 



lare, M. orthorrhijnchuni, Brijiun (vneiun, B. incUnatum, B. pallescens, 

 B. ventricosuiu, Mniobrijum albicans (conimon), Pohlia crada, Plagio- 

 brijnin Zierii, Anomohnjum fiUforme (in one place in IV.), Amphidium 

 Moiigeottii, A. lapponiciim, Anæctangiuin conipaciiiin, Hijinenostijliiuu 

 ciirvirostre, Blindia aciita, Ditrichiim flexicanie, Distichinm nwntaniiin, 

 Barbula cylindrica, Didijnwdon rubeUiis, Toiiella toiiiwsa, T. fragilis, 

 Griinmia apocorpa, Myiirella jnlacea, Haplozia riparia, H. atrovireus, 

 Madotheca Cordæana, Lejeunea serpijlUfoUa, Radula complanala, Metz- 

 geria fiircata, Chil()scijj>hus pohjanihus, Lophocolea cnspidata (scanty), 

 Scapania irrigiia, Lophozia qiiinqiiedeidata, L. Miilleri and Aneiira 

 pingiiis. The moss-carpet covering dry rock-faccs and large blocks 

 was chiefly composed of Hglocomium loreum (also in fr.), H. proli- 

 feriim, Hijpmim uncinatum, H. hamulosum and H. callichroum. In a 

 dry cave above the den there grew Neckera complanata, Brachijthe- 

 chim populeiim, B. vehitimim, Plngiothecium denticnlatiim, P. depressiim, 

 Isothechiin teniiinerve, Mniiim cuspidatum, and on the roof of the 

 cave there grew Aniblijstegium Sprncei and Blepharostoma. 



The Southern side of Drangshlid.arfj all and the small neigh- 

 bouring group of mounlains, Hrutafjall (Fig. 34), consist, in a 

 great measure, of dry, lofty faces of tuff-rock, as much as 200 metres 

 high, the base of which is moss-grown. One of the commonest 

 species here is Leucodon sciaroides var. morensis which covered the 

 rock-face for a considerable distance upwards with its extensive and 

 oflen richly-fruiting mats. The following species were also coni- 

 mon : Homalotheciiim sericeum, Pterigynandriim fdiforme, Hypiuini 

 revoluinm and Grimmia torquata. At the foot of the rock-faces there 

 grew Isolhecium mynriim (in abundance), Orthotrichum rupeslre, 

 Didymodon rubellns, Barbula cy lindrica. Bryum capillare, Tortella 

 tortuosa, Encalypla ciliata, Neckera complanata, Mynrella jnlacea and 

 Metzgeria fnrcata, and where the waler was oozing through cracks 

 and crevices the rock-face was covered with Blindia acnta inter- 

 niixed wålh Hypnnm nwllnscum . H. pahistre and the rare Anomo- 

 bryum concinnatnm. 



Among the large blocks of tuff on a small Urd there grew, 

 among olhers, Mnium nndulainm, Enrhynchinm pilifernm, Bhyncho- 

 steginm nuirale (abundantly), Amblystegium Jnrcdzkannm , Leskea 

 nervosa and Lejeunea cavifolia. 



The walls in the interior of a ralher dry, open cave, were 

 covered with Preissia commutata, Fegatella conica, Marchantia poly- 

 morpha, Distichinm montamim, Bryoxiphium norvegicum,Anæctangium 



