MR. BUNBURY ON THE BOTANY OF MADEIRA. 17 



Parnielia affinis (Squamaria, Hook. Brit. EL). Among moss 

 on trees near Santa Anna. 



Borrera leucomela, Ach. On old trees at Kibeiro Erio, abun- 

 dant, but barren. 



Borrera Jlavicans, Ach. On trees in the mountain forests. 



Ramalina scopulorum ? On rocks, Great Curral. 



JJsnea barbata, Extremely common on trees and shrubs in the 

 mountain forests. 



JJsnea articulata. In the forests at the head of the Serra 

 d'Agoa valley. 



Alectoria Canariensis ? On trees and shrubs in the above- 

 mentioned forests. 



Cladonia rangiferina (a variety of rather small growth, with 

 the branchlets scarcely bending down). Erequent on open ground 

 on the mountains, even below 2000 feet of elevation, as for instance 

 near the Palheiro. 



Stereocaulon paschale ? Very abundant on rocks on the moun- 

 tains, above 2000 feet. 



Sphcerophoron ? On rocks in the Laurel forests. 



Above the Laurel forests, in ascending from Ribeiro Erio to the 

 Poizo Pass, are extensive low thickets of the Vaceinium padifoliwm 

 (or Maderense), which is here as thoroughly a social plant as the 

 V. Myrtillus with us ; it covers the upper slopes and plateaux of the 

 mountains to a great extent, and is very conspicuous in January 

 and Eebruary, when its foliage assumes a rich vinous red colour. 

 It ascends, in a more scattered manner, to the top of the Poizo 

 Pass, 4560 feet above the sea ; while, on the north coast, it grows 

 in the ravines about Santa Anna, at an elevation scarcely exceeding 

 1000 feet. Erica arborea also is pretty plentiful about Santa 

 Anna. On the south side of the island it is confined to much 

 higher regions, and is by no means as general as F. scoparia. My- 

 rica Faya (Faya fragif era, "Webb and Berth.) abounds, particularly 

 along the cliffs of the northern coast, between S. Vicente and S. 

 Jorge. 



Two large and remarkable species of Sempervivum form, by their 

 size, abundance, and peculiar appearance, very conspicuous features 

 in the botanical scenery of Madeira : one of them in particular 

 (S. tabulceforme) , spotting the rocks with its broad, flat, compact 

 rosettes of light green leaves, has a very singular effect. Both are 

 exceedingly plentiful along the north coast, on the bare precipitous 

 rocks of all the ravines and headlands ; they abound also in the 



Linn. Proc. — Botany. c 



