of the Mosses in Aberdeenshire, 3QS 



west from Aberdeen, and not 100 feet above the sea-level ; it is 

 however always barren. I have seen it in the upper parts of the 

 county at 2400 feet, which however may not be its highest limit. 



Bryum Ludwigii. Glen Callater, at 2400 feet or upwards, and 

 on Lochnagar at 3600. 



B. Zierii. Chiefly at 2400 feet. 



B. turbinatum. Sea-level to 2400 feet. 



B. elongatum. Mostly at 2000 feet and upwards. 



B. alpinum. Near Aberdeen at 280 feet, but always barren j 

 upper limit unknown. 



B. punctatum 0. attains 3600 feet. 



B. hornum. 1700 feet. 



Bartramia ithyphylla. Grows near Aberdeen ; it is abundant 

 inland at 2000 feet and upwards ; the highest point attained has 

 not however been ascertained. 



Pterogonium gracile and P.filiforine are chiefly confined to the 

 inland parts of Aberdeenshire ; I have seen them plentiful near 

 Ballater at 800 feet to nearly 2000. 



Neckera crispa is like the two last, an inland species ; I have 

 seen it attaining 1600 feet, but cannot state its absolute upper 

 Umit. 



Hookeria lucens. From the sea-level to 2400 feet and upwards. 



The altitudinal range of a few species of Hypnum have been 

 ascertained. The following are abundant at 2500 feet : H. den- 

 ticulatum, curvatum, stramineum, pulchellum (at this height also 

 H. rufescens grows in great profusion) ; Hypnum molluscuniy adun- 

 cum, complanatum, cordifolium and filicinum are all found at 1000 

 feet, and some of them attain a higher elevation. H. purum, la- 

 reum, triquetrum and splendens grow upon Morven at 3000 feet. 

 H, Crista Castrensis is abundant in some woods near Aberdeen, 

 but I have not been able to ascertain its absolute upper limit. 



The following mosses were observed growing about the summit 

 of Bennachie at 1700 feet, and twenty miles west from Aberdeen : 

 Polytrichum alpinum, Dicranum heteromallum, Bryum hornum^ 

 Dicranum scoparium, Hypnum denticulatum, purum, splendens, 

 loreum, cupressiforme, Trichostomum lanuginosum, Didymodon 

 purpureus, Polytrichum piliferum, Dia'anum polycarpon, Bartra- 

 mia ithyphylla, Andraa rupestris, Trichostomum fascicular e, Bry- 

 um nutans, Grimmia ovata. 



Adopting Mr.Watson^s regions of vegetation, the following may 

 be stated as an approximation to the species mostly characteristic 

 of these regions : — 



Region of the Plains. 



Southern. — Most species of Phascum, Schistostega, Weissia Stark- 

 eana, Tortula cuneifolia, Bryum Tozeri, Pterogonium Smithii, Leu- 

 codon, Neckera pumila, Daltonia. 



