REVUE BRYOLOGIQUE 59 
often hairless forms of 7. aciphylla ; Barbula gracilis, the highest 
_ allitude for which given by Limprieht is 1800 m. in Algaü, and 
… recorded by Molendo from one station in the Tirolese Alps at 
2970 m.; and finally £ncalypta vulgaris (efr.), which according 
to Limpricht is not recorded from any higher altitude than 
4700 m. in the Central Alps, though found in several higher 
stations in the Austrian Tirol up to 2500 m. 
These species it will be seen indicate a very abrupt transition 
of elimatal conditions, owing without doubt in great measure to 
the southern aspect of the escarpment, and the entire shelter 
- afforded by it from all northerly winds. Itis worth noting that 
Christ (Das Pflanzenleben der Schweiz, 1882) commenting on the 
Flora of the Bernese Oberland and the fact that it is isolated 
against the plants of the South and West, goes on Lo point out 
that on the South Slope of the Bernese chain the rich South- 
west flora.begins to spread itself; as soon as we cross the Gemmi 
there meet us, on the Torrenthorn and the Cherbenon Alp, 
Potentilla nivea, Androsace carnea, etc., etc. ; while in another 
passage he speaks of meeting the Valaisian flora as soon as the 
Grimsel is left behind. This however does not appear Lo imply 
the presence of a more meridional or less alpine phanerogamous 
flora. À more extended study of the flora of this southern escarp- 
ment might probably reveal further striking and interesting facts 
of distribution. 
= L'append a list of the more interesting m°sses collected. I have 
omitted several records which might have found a place here, but 
which have been rendered unnecessary by the interesting articles 
in this Revue by Mr W. E. Nicholson (1905, p. 3) and D' Culmann 
(4905, p.73; 1906, p. 7). 
: Note. B. — Berne. Y. = Valais. All the Adelboden records belong 
: to Berne. 
Molendoa tenuinervis Limpr. © In crevices of rock, Rothe 
Kumme, above the Daubensee, 2700 m. V. Previously recorded 
‘only from the Bretterwants Kopf, near Windischmatrei in the 
described by Limpricht. It is a curious little plant, closely resem- 
bling Weisia rupestris in habit, but in more compact tufts, with 
much shorter, wider, densely imbricated leaves, incurved and 
scarcely twisted when dry ; usually conspicuous at once from the 
_ numerous, pale axillary © branchiets, { find the nerve somewhat 
_ broader than as figured by Limpricht, the leaf margin, as he des- 
cribes it, either plane or slightly recurved. 
_Tirol, where Breidler gathered itin 1871, and whence it was 
