376 
ST. HELENA. 
992. P. saxatilis, Ach. — A species collected from the bark of 
Oak trees, growing in the interior of the Island. Alt. 4. — Found 
also in Great Britain. Sterile. 
993. P. laevigata, Ach.— A species very like the last mentioned. 
— Found also in Great Britain. Sterile. 
994. P. conspersa, Ach. ; forma Mougeotii, Schser. — Found on 
the rocks at St. Helena, and also in Great Britain. Sterile 
995 P. incurva? Fr.— Found on the rocks at St. Helena, and 
also m Great Britain. Sterile. 
996. P. caperata, Linn.— Found at St. Helena; as also in Great 
Britain. 
997. P. hyperopta, Ach. ? — A very white Lichen, from the 
clay rock above The Hermitage ; also from trunks of Fir trees on 
the high land. Alt. 4. 
998. P. lepidiota, Smrf. 
Physcia, Nyl. 
999. P. flavicans, D.C. — A bright orange-yellow shrubby 
Lichen, found on the rocky outskirts, and on the stems of Fir trees 
m exposed places.— Found also in Great Britain. Sterile. 
1000. P. leucomela, Mich.; forma avgas! folia, (Mey. & Fit.) 
A delicate thread-like Lichen, white, with black lateral hairs, found, 
with Cora pavonia, running amongst the grass on the central ridge of 
the high land at Diana’s Peak. Fertile. 
1001. P. speciosa, Fr. ; and var. hypolcuca, Ach. — A flat, 
spreading, pale-greenish Lichen, growing on the stems and branches 
of trees; may be recognised by its beautifully divided branches. 
H. L. Alt. 4. Fertile. 
1002. P. picta, (Sw.) — A very minute fine grey Lichen, found 
on the bark of decaying stumps of Cabbage-trees in the neighbour- 
hood of Diana’s Peak. H. L. Alt. 5 '4. Sterile. 
1003. P. astroidea, Clem— A greyish-white Lichen, from the 
rocks generally in the Island.— Found also in Great Britain. 
PliACODEI. 
Pannaria, Del. 
1004. P. rubiginosa, Del.— Found at St. Helena, and also in 
Great Britain. 
