102 MR. G. E. HUNT ON BRITISH MOSSES. 



Weber a Ludwigii differs in its narrower, hardly concave, 

 patulous leaves, more strongly decurrent, with larger, 

 longer, and more diaphanous areolae. The whole foliage 

 also is frequently of a fine red colour. 



Fruit matures in August. 



Hab. Abundant on the fine debris of granitic rocks, by 

 streamlets issuing from the perpetual snow-beds near the 

 summits of Ben-mac-Dhui, Ben-na-Boord, and doubtless 

 all the other mountains of like character. On the slaty 

 formations it is rare, and I have only seen it by a steamlet 

 in one small ravine above Glen Callater, where, in the 

 middle of July, the snow was lying abundantly. 



Weber a Schimperi, Wils. (not of B. & S. Bry. Eur.), has 

 leaves more rigid, erect, narrow- lanceolate, less decurrent, 

 nerve stronger, continued almost to the apex; areolae a 

 little longer, more obscure. 



Fruit matures in July. 



Hab. Frequent on debris of micaceous rock, on Ben 

 Lawers, and on most of the other Perthshire mountains. 

 It also occurs on debris near the summit of Snowdon, but 

 barren. 



Philonotis adpressa, Ferg. 



Plant widely caespitose, erect, 2 or 3 inches high, either 

 dull glaucous green or with a fine red tinge ; leaves papil- 

 lose, when moist erect, with one wide plica on each side of 

 the nerve, incurved towards the apex, when dry slightly 

 twisted, widely ovate, from an amplexicaul base, not acu- 

 minate, apex either obtuse and cucullate, with a very slight 

 mucro, or in the more slender forms of the plant rather 

 acute; margin denticulate, slightly reflexed; nerve very 

 thick, continuous ; cells in the upper part of the leaf 

 small, ovoid, towards the base a little shorter and wider. 



I have seen neither flowers nor fruit. 



Hab. Glen Prossen, Clova, and various other places in 



