ON MOSSES OF THE GENUS CAMPYLOPUS 103 



R. maritimus, Z., 72(?), 8if, 85 (?) 86 cas., 87, [92, 94, probably 



errors], 1047, in (?). 



(R. limosus, Thuill., recorded from 75, 82, 90, requires further proof.) 

 (R. pulcher, Z, recorded from 75, 77, requires further proof; 80, 



casual on ballast.) 

 R. obtusifolius, Z., except 10-1. 

 R. crispus, Z., all. 



crispus x domesticus (propinquus, Aresch.\ 1 12. 



crispus x obtusifolius (R. acutus, Z.), 78, 80, Si, 83, 85, 



87-89, 92, 97, 100, 105, in, 112. 



R. domesticus, Hartm., except <SV, 99 (?), 100, 101, 102, 103, 106. 

 domesticus x obtusifolius (R. conspersus, Hartm.\ 78, So, 



Si, 85, 87, 88, 91, 92, 96, 97, 105, in, 112. 

 R. Hydrolapathum, Huds., 73!, 75, 77!, 80, 81, 85, 88, 89, 90 (?), 



93 (?), 9 6 > 99 (?), 102. 



b. latifolius, Borr., 88. 



R. alpimts, L., 72f, 73!, 747, 75t, 3!, 85!, 88f, Sgj. 

 R. Acetosa, Z., all. 



1?. scutatus, L., rare escape in, 83, 85. 

 R. Acetosella, Z., all. 



(To be continued.} 



ON MOSSES OF THE GENUS CAMPYLOPUS 

 By JAMES STIRTON, M.D., F.L.S. 



THE western portions of Scotland, and more especially the 

 outer Hebridean Islands, are singularly prolific of species of 

 the genus Campylopus a genus only meagrely represented in 

 Europe, although largely so in America. There is, however, 

 a strong probability that the species are not yet sufficiently 

 investigated. The diversity in form and appearance of the 

 species, especially from the Outer Islands, forms a barrier to 

 their study, inasmuch as this diversity renders them some- 

 what puzzling and even perplexing to the bryologist. Ben- 

 becula, one of this group of islands, is perhaps the richest in 

 species and varieties. In places such species seem to consti- 

 tute the usual undergrowth instead of grass, and one may 

 tread over patches of Campylopus brcvipilns many yards in 

 extent. 



I have again gone over my large collections of species 

 gathered in these islands, and have picked out two which 



