THE BKYOPHYTA OF ICELAND 475 



NW. Iceland: Bildudalr C. H.)!. W. Iceland: Lundur!. S. Iceland : Traust- 

 holtsholm in the Thjorsa (F.)!; Breidabolstadr!. 



Pxather common, especially in N. and E. Iceland. It grows on damp 

 sandy or peaty soil, especially in places where the peat has been pared 

 of]', and by the sides of ditches. Near Husavik it was growing plentifully 

 on damp slopes stretching down towards the sea, in association with 

 Lcptobnjnm, Aongstnvmia, Bryum inclinatum, etc. Near Lundur it was 

 growing in company with Dichodontium, Aongsli-n>mia, Dicranella Schreberi 

 and Bryum inclinatum on peaty flats which had been pared oil'. The 

 fruit was ripe near Berufjordur on June 20th, near Breidabolstadr on 

 July 16th. 



135. Bryum Kaurini Philib. 



E. Iceland: Berufjordur (Grl.)!. 



The specimens, which are quite typical, were gathered with ripe 

 fruit on July 6th, 1878, and determined by Bcrggren as/?, inclinatum 



136. Bryum archangelicum Br. ear. 



NW. Iceland: Hesteyri!. W. Iceland: Esja (Grl.)!; Brjanshekur (H. J.) !. 

 S.Iceland: Drangshlid (H.J.)!. 



Both rare and scanty on rather dry, sandy ground or on soil-covered 

 rocks. The fruit ripens at the end of July. 



137. Bryum Jorgensenii Kaurin. 



SW. Iceland: Thingvellir!. 



The Iceland plant agrees exactly with B. archangelicum in habit. 

 The leaves are narrowly and indistinctly bordered ; the perichaetial leaves 

 have their margins revolute to the apex. The plants are often purely 

 ^; usually, however, a few antheridia and many archegonia are present. 

 In none of the plants investigated did the lamella? show the slightest 

 sinuosity. The spores, which \vere yellow and almost smooth, were of 

 very much the same size as in B. archangelicum. 



138. Bryum inclinatum (Sw.) Br. eur. 



Very common everywhere on a more or less damp substratum, on 

 peat, sand and gravel, on soil-covered rocks, and in rock-clefts. It does 

 not appear to ascend higher than about 300400 metres above sea-level. 



Bryum inclinatum varies so considerably in all its parts, in habit 

 and size, in the length of the setae, in the form and degree of inclination: 

 of the capsule, in the structure of the peristome, the size of the spores 

 and in the form and cell-tissue of the leaf, that it is hardly possible to 

 collect t\vo tufts which do not show diversities in one respect or another. 

 Perhaps on a closer investigation many of the forms might possibly 

 be referred to some of the numerous "small .species" established by 



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