SPITSBERGEN LICHENS 
81 
Rinodina demissa Arn. 3, on a stone = Rinodina exigua, saxi- 
colous form. 
Lecanora atra Acli. 4, on rocks; L. epibryon Ach. 1, 3; L.galac- 
tino Acli. subsp. disperse Nyl. 2, on siliceous rock; L. polytropa 
Seiner, and f. alpigina Leight. 2, on siliceous rock ; L. tartarea Acli. 
var. frigido 1, 2, 3, over mosses and other lichens. 
Gyrophora erosa Ach. 1, 4; G. hyperborea Ach. 1; G. pro- 
bo scide a Ach. 2. We note the absence of G. arcticq Ach. from the 
collection. 
Stereocaulon alpinum Laur. 1, 2; S. denudatum Floerke 2, on 
siliceous rock; S. paschale Fr. 1, on earth among* moss. 
Gladonia bellidifora Sc hser. 1, on earth; *0. cervicornis Seiner. 
2. This agrees with Wainio’s description of 0. verticillata var. cer¬ 
vicornis , and as C. verticillata has not been recorded among Spits¬ 
bergen lichens, the asterisk is attached; *C. foliacea Willd. 1; 
*C. fur cat a Schrad. var. spinosa Leight. 1, 2, 3, and var. sur recta 
Floerke 2 ; C. gracilis Willd. 1; *0. lepidota Nyl. 2—this lichen has 
probably been included in previous records under C. degenerans 
Spi’eng : the specimen is in excellent condition and is sufficiently 
distinct to be included under Nvlander’s species ; C.pyxidata Hoft’m. 
1, 2, 3 ; C. sylvatica Hoifm. 1, 2 ; C. rangiferina Web. 1,2; C. ran- 
g if or mis Hoifm. 1, 2—these occur generally on earth and mixed with 
moss. 
Lecidea confuens Ach. 1, 2, on stones ; L. goniophila Seiner. 2, 
on rocks ; L. lapicida Ach. var. deciduous Nyl. 1, 2, on a stone ; 
*L. sanguineoatra Ach. Sassen Valley, over moss. 
Jj. vernal is Ach. 1, 2, over moss. 
ddilimbia sabulosa Massal var. montana A. L. Sm. = Toninia 
syncomysta (Floerke) Th. Fr. (Th. Fr. Scand. p. 335) 1, on the 
ground with mosses. 
Buellia disciformis Mudd. 2 and var. trifragmia Boist. 2, 3, on 
stones; B. sororia Th. Fr. 2, on stones. 
*Bhizocarpum distinctum Th. Fr. 2; 11. geminatum Koerb. 2; 
JR. geographicum I)C. and var. atrovirens Koerb., all on rocks or 
stones. 
Verrucaria nigrescens Pers. 1, on stones. 
Thelidium pyrenophorum Massal. 2, 3, on calcareous rocks. 
Bolyblastia intercedens Lonnr. 2, on calcareous rocks. 
Microglcena spkinctrinoides (Nyl.) Th. Fr. 1, 2, over moss on 
rocks. 
Parasitic Fungi on the Lichens. 
The following parasitic Fungi were found upon certain of the 
specimens :— 
Discothecium qemmiferum Tayl. on Lecidea conduens Acli. 
Fpicoccum neglectum Desm. on Lecanora tartarea Ach. 
Ticothecium pygmeeum Koerb. on Lecanora polytropa Schair. 
The number of species collected on Bear Island and Prince Charles 
Foreland collectively amounts to 53 : of these 18 are common to both 
localities ; 19 were gathered on the first only and 1G on the second. 
Journal of Botany.—Vol. 61. [March, 1923.] g 
