598 



A. HESSELBO 



Sælania cæsia 

 Anomobryuiii filiforme 

 *PIagiobryum Zierii 

 Brj'um oeneum 



— pallescens 

 capillare 



*Mnium orthorrhynclnim 



— serratum 



— stellare 



*Orlholhccium chrysciim 



— intricatum 

 Eurhynchium strigosum 



Swartzii 

 *Plagiotheciuni pulchelluni 



— depressum 



— Ræseanum 

 *Aniblystegiiim Sprucci 



Hypnum haimilosum 



Among the species met willi liere, which liowever cannot he 

 reckoned to the choniophytes proper, the foUowing are the most 

 frequent: Bartramia itijphylla, Pohlia criida, Bryiim inclinatum, B. 

 ventricosiim , Oncophorus virens, O. Wahlenbeiqii, Didymodon rii- 

 belliis, Distichiiini montaimni, Schistidiuin apocarpiim , S. gracile, Di- 

 tricbum fiexicaiile, Pbilonotis tomentella, Marchantia polymorpba, 

 Lophozia spp., Scapanid curta, S. siibalpind and Blepharostoma tricho- 

 phylliim. 



Stony and Gravelly Slopes. The Bryophyte vegetation 

 is, as a rnle, rather poor in species, and not very characteristic. 

 Rhacomitriiim heaths are common where the slope is not too steej), 

 but slony and gravelly slopes are often almost bare of vegetation, 

 only here and there occur some cushions of Dicranoweisia crispula 

 and species of Rhacomitriiim. 



A Stony Slope near Grunnavik in NW. Iceland consisted 

 of large blocks at the foot, and in the ui)per and steeper part of 

 smaller stones. Vegetation was absent at the lo[), but increased in 

 abundance lower down as the ground gradually become more level, 

 and the conditions thereby became more stable. Scaltered among 

 the stones grew i)lanls of the rocky flat, for instance Salix herba- 

 cea, Papaver radicatiim. Oxyria digyna, Sibbaldia prociimbens and in 

 the shelter afforded by larger stones Athyriiim alpestre, Alchemilla 

 alpina, etc. Upon the stones grew Rhacomitriiim hypnoides, R. fas- 

 ciciilare and Dicranoweisia crispula and on the ground between the 

 stones Brachythecium reflexiim, Hypnum iincinatum, Lescuræa pa- 

 tens, L. filamentosa, Hylocomiiim sqiiarrosum, Polytrichiim alpiniim, 

 Dicranum fiiscescens, Lophozia ventricosa, L. lycopodioides and Anthelia 

 jiilacea. 



Stony Slope near Beru fjord ur. On the sleep somewhat 

 damp slope there grew Rhacomitriiim fasciciilare, Schistidium gracile, 

 Dicranoweisia crispula, Lescuræa decipiens, Heterocladium s(juarrosu- 

 liim and Timmia aiistriaca. 



