78 
ST. HELENA. 
1015. L. haematomma, Ach.— A knotted, whitish rock Lichen 
from the Black Square. H. L. Alt. 3. 
1010. L, fusco-lutea, (Licks.) — A whitish Lichen with bright- 
red seed-spots, from the stems of Cabbage-trees at Harding’s 
Spring. H. L. Alt. 4. 
ihe whitish lichens, which cover the rocks generally and give 
them their peculiar grey aspect, are species of lecanora, amongst 
which are doubtless others than those which have been already 
identified by Mr. Leighton. 
Urceolaria, Ach. pr. p. Xyl. 
1017. TJ. scruposa, Linn. — A whitish Lichen from the clay 
roadside hanks, on the high land in the interior of the Island. 
Found also in Great Britain. 
Pertusaria, D.C. 
1018. P. fallax, Pers. — A broad, knotted, white Lichen, from 
the stems of Gumwood trees at Plantation House. H. L. Alt. 36. 
Pound also in Great Britain. 
Lecidea, Ach. 
1019* L. approximans, Leight.— Described and figured by 
Mr. Leighton as a new species. Trans. Linn. Soc. Lond. vol. xxvii. 
p. 157, t. xxxv. f. 1, 2, 3. 
1020. *L. lactescens, Leight— Also described and figured by 
Mr. Leighton as a new species. Trans. Linn. Soc. Lond. vol. xxvii. 
t. xxxv. f. 4, 5. 
1021. L, saxatilis, Schser. ? — Growing on rocks on Kupert’s 
Hill. C. Alt. 16. — Found also in Great Britain. 
1 022. L. enteroleuca, Ach. — A very fine grey Lichen from 
rocks near Bed Hill. H. L. Alt. 2'6.— Found also in Great 
Britain. 
1023. L. stellulata, Tayl. — In appearance very much re- 
sembling a dark blue mark on the very hard rocks. — Found also in 
Great Britain. 
Opegrapha, Ach., Xyl. 
1024. O. Leightonii, Cromb— A chalky- white Lichen, from 
the rocks at Rupert’s Hill. C. Alt. 1 '6.— Found also in Great 
Britain. 
