NEW LICHENS. 173 
virescentibus, lævigato, inæquabili, subtus  corrugato, 
margine albido, cœterum scabroso-fuscescenti; gemmis 
marginalibus, subrotundis, planis; apotheciis sessilibus, 
planis, castaneis, margine radiato-gemmiferis. 
Has. Organ Mountains ; Brasil; Gardner, G. J. Lyon, Esq. 
Thallus five inches in diameter, deeply and irregularly 
divided into broad linear lobes. The upper surface has - 
shallow unequal and irregular pits. Apothecia of a con- 
spicuous size. Lobes of “the thallus imbricated, but by 
no means sinuate. 
33. P. polycarpa, Tayl.; thallo orbiculari, membranaceo, 
rugoso, albido-cinereo, virescenti, subtus centrum versus 
nigrescenti, exterius fixuris nigris devincto, sub ipso mar- 
gine nudo, rugoso; gemmis marginalibus, granulatis, 
albidis; apotheciis demum concavissimis, extus rugosis, 
disco Pinet, margine tenui crenato-rupto, incurvo. 
Has.—On bark ; Swan River; Mr. James Drummond. —Dif- 
fers from P. Borreri, Ach., by the want of cup-shaped 
receptacles of the buds, and from P. corrugata, Ach., by 
the paler colour of the thallus, and less red disks of the 
a. besides the lobes of the thallus are less rotun- 
MF. plumosa, Tayl.; thallo stellato, émet: subtus | 
_subconcolori, fixuris nigrescentibus | devincto, l : 
moso-rugosis ; gemmis subglobosis, pulver 
apotheciis minutis, concavis, disco aigro- 
| gine crasso, incurvo, crenulato. 
E Has.—On bark Low Island; i eh es. herbie 
thallus 3 s wide, lying closely adnate to thé bark; —— 
lobes radiating, wrinkled. Beneath a black pruinose disk — 
o isa colourless: lamina with a few erect jan ec, 
Testing on a layer of black matter as in ,ecanor 
