133 
Enumeration of Micro-lichens parasitic on other 
Lichens. By W. Lauder Lindsay, M.D., F.R.S.E., 
F.L.S. 
{Continued from page 57.) 
Calicium stigonellum , Salwey (excl. syn.). 
On thallus (1) of several Pertusarice, corticolous and saxi- 
colous, in various conditions of growth, especially variora- 
rioid, e.g. P. communis and Wulfenii ; (2) of various Lecanorce, 
e. g. L. parella, L. tartarea, var. Turneri, L. subfusca ; (3) 
of various Peltidece j and (4) of Bceomyces rufus Nyl. ; 
Mudd, Brit. Licli., 224; and in my herbarium, 1856, from 
Cliffiig, Cleveland, on a Pertusaria ; Richardson and Leigh- 
ton (Lichens of Arctic America, 1 ) on Peltidece and Hypna ; 
Tul., 118, on Bceomyces ; Korb., Syst., 217, on Lecanora 
subfusca ; and generally on a variety of saxicolous, crus- 
taceous Lichens. 
Spores 8, oblong or ellipsoid, 4- rarely 2-locular ; 
yellow, becoming brown. 
9. L. scabrosa, Ach. 
Syn. Lichen scabrosus, E. Bot., t. 1878, pr. p. 
L. citrinellus, E. Bot., t. 1877, pr. p. 
Lecidea flavovirescens, Fries. 
,, ,, var., Seiner. 
L. citrinella, var., Ach. 
Buellia scabrosa , Korb., Syst., 227 ; Th. Fries, 
Arct., 232. 
On sterile thallus of Bceomyces 'rufus and B. placophyllus ; 
sometimes only associated therewith (Nyl., Prod., 142 ; 
Scand., 247 ; Th. Flies). 
Spores 8, sub-ellipsoid, 2-locular, brown. Korber 
(Syst., 277) describes it also with a proper thallus. Nylander 
suggests that L. Hookeri, Schser., which has its proper thallus, 
may be referred to L. scabrosa. L. Hookeri is itself affected 
by a parasite, Verrucaria innata (<p v.). 
10. L. micraspis, Smrf. 
Syn. L. saxatilis, Naeg. ; Hepp, 145. 
L. Schcereri, Fw. 
Trachylia saxatilis, Rabenhorst, 
Buellia, Korb., Syst., 228. 
Acolium, Mass. 
Calicium, Seiner. 
On thallus of Lecanora calcarea and Squamariu saxicola 
1 ‘Journal of Linnean Society,’ vol. ix, Botany, 1867, p. 154. 
