ADDITIONS TO THE BRITISH LTCIIEN-FLOUA. 99 



L. symj)horella, n. sp., Nyl. in Flora, 1870, p. 35. — On quartzose 

 stones in alpine places. Rare and local on the summit of Morrone, 

 Braemar. This new species, Nylander observes, is somewhat doubtfnl 

 as to genus ; that which apparently is the trne thallus being adnate, 

 or under the apothecia, with green, elliptical gonidia (almost go- 

 nimia). 



L. agl(ea, Smmrf. Lapp. 144. — Extremely rare on the Scottish 

 Grampians, having been found only very sparingly on Ben Cruachan 

 (Crorabie). The thalline reaction shows L. Cromhiei, Jones, to be 

 only a var. of this, distinguished chiefly by the colour of the hypo- 

 theciura. 



L. alpicola (Schser.), Nyl. Prod. 142. — On rocks in alpine places. 

 Though reported from various localities, I have met with the true 

 plant only once, on whinstone boulders, towards the summit of Ben 

 Nevis. 



L. colludens, Nyl. in Flora, 1870, p. 38 = L. albo-atra,vnx. chloro- 

 spora, Nyl. olim. — On rocks in subalpine districts. Perhaps not un- 

 frequent, as near Dolgelly in Wales (Holl.), and if I mistake not, also 

 on the coast of Kincardineshire. 



Schizoxylon corticola (Frs.), Nyl. Scan. 249. — On tranks of trees 

 in wooded districts. Not unfrequent on old oaks about Lyndhurst in 

 the New Forest (Crombie). This genus is allied to Odontotrema, 

 Nyl., but both, perhaps, are rather to be regarded as belonging to the 

 Fungi. 



F'errucaria subumbrina, Nyl. — This was originally gathered on Ben 

 Lawers by Admiral Jones, and Mr. Carroll informs me that the plant 

 from the Irish locality given in my Enum. was doubtfully referred to 

 this species. 



There are thus eighteen species, four of which are neio to science, 

 and nine varieties, collected chiefly in August and September last, to 

 be added to the list of the British Lichen-flora. Nor does this repre- 

 sent the sum total, for amongst many rare Lichens collected by Dr. 

 Holl last autumn, in the Brcadalbane Highlands, there are evidently 

 several new species, which will no doubt be duly recorded in this 

 Journal. 



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