79 



Teifi, between 40 and 50 miles from the coast (unless brought direct by sea birds). 

 Unlike the case of Cochlearia alpina, these intermediate stations seem due to the 

 plant ascending, rather than descending, the river courses. 



8 Silene acaulis, L. 1, 2, 3. Northern Group, higher precipices. 

 Absent from Central and Southern Wales, but abundant northwards, in the 

 EngUsh Lakes, and in Scotland. Very abundant in the Cwm Idwall cliff. 

 Nothing can exceed the beauty of the Cushion Pink, when in full flower. 



9 Cerastiumtriviale,iinA-,var.alpestre. 1,2,3,0. Northern 

 and Southern Groups. This Mouse-ear Chickweed is very abundant on the 

 higher cliffs of Carnarvonshire, and recurs in small quantities near the summit 

 of the central cliff of the Brecon Beacons. See Mr. B. Barrett's Contribution 

 mvards a Flwa of Breconshire, in the Journal of Botany, 1885, p. 43. It will 

 probably be found a far more general mountain plant than had been supposed ; 

 though I did not find it on Cader Idris. I feel sure, also, that a complete series 

 will be found to join the mountain form to the common lowland C. triiiale. I have 

 not seen any Welsh specimens of C. alpestre so well marked as the Scottish plant 

 from Little Kilrannock ; but I have the authority of Professor Babington for 

 namin- the Snowdon plant alpestre. Forms intermediate between this and 

 ordinary C. triviale occur about springheads, on Micklefell, Teesdale ; and should 

 be searched for in similar situations upon our own Black Mountain ground. 



10 Cerastium alpinum, L. 1. Northern Group, Clogwyn-y 

 Garnedd at 3,300 feet. Still to be found (1886) at this old and well-known 

 station but now in minute quantities, owing, it is to be feared, to collectors' 

 depredations. Apparently not elsewhere in Carnarvonshire ; and this is its 

 southern limit in Great Britain. Abundant upon the Helvellyn range, West- 

 moreland ; and far more general in the Scottish Highlands than the next. 



11 Cerastium latifolium, Auct ang. C. alpmum, var. 

 pubescens, Syme.* Clogwyn-y-Gamedd at about 3,000 feet. I have not seen 

 it at any other Carnarvonshire station ; but this and the last Mouse-ear Chick- 

 weed should be found on Carnedd Dafydd. Absent from the Central and 

 Southern Groups ; present northwards in the Scottish Highlands. It is curious 

 that this plant misses over the Lakeland summits. 



12 Alsine verna, Bartling. 1, 2, 3, 4, 5, 6. Northern, Central, 

 and Southern Groups. Though common on lower hills in many counties, 

 especially in limestone districts, this pretty little Sandwort asserts itself as a 

 true Cliff plant, by its abundance and luxuriance in such situations, both in Wales 

 and elsewhere. It is probably present on all the higher cliffs of Wales ; ascending 

 in Clogwyn-y-Garnedd to 3,000 feet or higher. Very fine and luxuriant in Cwm 

 Idwall ; abundant on the Central Cliff of the Brecon Beacons. Its absence from 

 the Black Mountain Tarens is remarkable. 



13 Alchemilla vulgaris, i., variety. 1,2,3,4,5,6,7. Northern, 

 Central and Southern Groups. The Common Lady's Mantle exhibits a note- 

 worthy ' variety when growing in mountain stations, ^hich reaches its fullest 



. Note -This plant has, since the writing of this paper, been determined by Prof. Lange 

 to be C.SV» arctUum. See Journal of Botany for 1887, PP. 373, 374- 



