NEW LICHENS. 163 
confertis, atris; gemmis marginalibus, minutis, albido- 
pulverulentis, demum explanatis. 
Has. Nepal; Wallich—Patches very white, several inches 
wide, but consisting of crowded, minute thalli, scarcely 
exceeding one quarter of an inch in length: the younger 
thalli are simple roundish disks. The grains of the buds 
separate and at length expand into new thalli. No apo- 
thecia observed. | 
6. P. Caraccensis, Tayl. ; thallo laxe cæspitoso, albido-virenti, 
lævigato, anguste lineari, dichotomo, supra canaliculato, 
subtus margineque densissime atro-villoso. 
Has. Caraccas; J. Linden, 576. Hook. herb. Near Quito; 
Professor Wi liam Jameson, 1845. — Thallus 5-6 inches 
long: laciniæ elongated, channelled, narrow, and thus dis- 
tinguished from P. sinuosa, Ach.; besides it is not sinuato- 
pinnatifid, nor are the sinuses circular. 
7. P. carporrhizans, Tayl. ; thallo stellato, nudo, fusco-cine- 
rascenti, minutissime albido-reticulato, subtus atro-fibril- 
loso, laciniis contiguis, subpinnatis, sinuato-lobatis, atro- - 
marginatis, lobulis planis, sinubus ovalibus; gemmis — - 
granulatis ; apotheciis initio sessilibus subglobosis, demum 
planis, disco rufo, margine tenui, craonlatos extus fibrillis - 
atris radicantibus. — —™ 
Has. On bark ; Canaries; ; Dr.L Hook. 
aei inches in diamstós, pale brownish ash. coloure 
hs of re lobed like some. RUPEM of 
ma: ‘sometimes, be. observ d, which, : 
— ciui are converted into thalli. Th 3 
