Bulletin of the British Museum (Natural History)
Bulletin of the British Museum (Natural History)
Bulletin of the British Museum (Natural History)
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186 BRIAN JOHN COPPINS<br />
vertically arranged in upper part, 1 •5-2-5 ^im wide, embedded in densely pigmented gel-matrix;<br />
ascogenous hyphae c. 2-5-5 /xm wide. Excipulum ± distinct in young apo<strong>the</strong>cia, but soon<br />
reflexed, dark purple-brown (K-l- dark green) within, changing to green (K-l- green intensifying)<br />
towards <strong>the</strong> outer edge; hyphae radiating, branched, c. 1-5-2 fxm wide.<br />
Pycnidia: Not found.<br />
Chemistry: Thallus K— , C— , KC— , PD— ; t.l.c: no substances.<br />
Observations: In his protologue, Magnusson allied his new species with <strong>the</strong> Lecidea [Micarea]<br />
sylvicola group. However, Th. M. Fries, 75 years earlier, was probably nearer <strong>the</strong> truth when he<br />
described material <strong>of</strong> M. subviolascens as a form {'aberrans') <strong>of</strong> Lecidea [Micarea] assimilata. In<br />
my opinion M. subviolascens is very closely related to M. assimilata, and <strong>the</strong> reader is referred to<br />
<strong>the</strong> account <strong>of</strong> that species for fur<strong>the</strong>r discussions.<br />
Habitat and distribution: M. subviolascens appears to have a very restricted distribution, being<br />
known only from <strong>the</strong> provinces <strong>of</strong> Troms and Hordaland in Norway. It is <strong>the</strong> only known<br />
saxicolous member <strong>of</strong> <strong>the</strong> M. assimilata group, and occurs on acidic rocks (schists and gneiss) in<br />
ra<strong>the</strong>r open situations. In <strong>the</strong> Hordaland localities it was collected at altitudes <strong>of</strong> 650 m and 795<br />
m. The labels accompanying <strong>the</strong> specimens provide little extra ecological information, and <strong>the</strong><br />
specimens have few associated species, although Pyrenopsis pulvinata and Rhizocarpon obscuratum<br />
have been noted.<br />
Exsiccata: Havaas Lich. Exs. Norv. 139 (BG, H), 694 (BG), 710 (BG). Havaas Lich. Norv. Occid. 269<br />
(BG).<br />
41. Micarea sylvicola (Flotow) Vezda & V. Wirth<br />
(Figs31C,51A;Map23)<br />
in Folia geobot. phytotax, Praha 11: 99 (1976). - Lecidea sylvicola Flotow, Lich. Schles. 171 (1829).<br />
Type: Poland, Schlesien, Flotow, Lich. Exs. 171A (UPS - lectotype!, sel. Hertel (1975: 74); WRSL-<br />
isolectotype!).<br />
Lecidea aggerata Mudd, Man. Br. Lich.: 208 (1861). Type: England, Yorkshire, Battersby, Mudd, Lich.<br />
Brit. 175 (BM - lectotype! ; isolectotypes: E!, H-NYL 14016!, M!, MANCH!).<br />
Lecidea incincta Nyl., Lich. Scand. : 231 (1861). Type: Finland, Satakunta, Kallfjard [Ahlainen: Kellahti],<br />
1859, /i. /. Malmgren (H - holotype!).<br />
Biatora smaragdina ArnoXd'm Verh. zool. bot. Ges. Wien 19: 613 (1869). Type: Italy, Trentino-Alto Adige,<br />
'Melaphyr in Walde unterhalb Bad Razzes am Schiern [Monte Pez]', vii 1867, Arnold (M - holotype!).<br />
Lecidea hellbomii Lahm in Flora, Jena 53: 177 (1870). Type: Sweden, Narke, Vredstorp, Urby, on granitic<br />
rock, 1869, P. J. Hellbom (M- lectotype!).<br />
Lecidea sylvicola f. sublivida Vainio in Medd. Soc. Fauna Fl. fenn. 10: 104 (1883). - Lecidea sylvicola var.<br />
sublivida (Vainio) Vainio in Acta Soc. Fauna Fl. fenn. 57 (2): 298 (1934). Type: Finland, Ostrobottnia<br />
kajanensis, Kuhmo,Kylmala, 1877, E. A. Vainio (TUR-VAINIO 25226 -holotype!).<br />
Lecidea hypocyanea Vainio in Acta Soc. Fauna Fl.fenn. 57 (2): 300 (1934), non Stirton (1879). - Lecidea<br />
vainioi Magnusson in Blyttia 7: 31 (1949); nom. nov. Type: Finland, Regio aboensis, Turku, Hirvensalo,<br />
10 vii 1924, E. A. Vainio (TUR-VAINIO 33172 -lectotype!, sel. Hertel (1975: 74)).<br />
Lecidea sylvicola \ar.flotowii Vainio in Acta Soc. Fauna Fl. fenn. 57 (2): 297 (1934); nom. inval. (Art. 26).<br />
Thallus effuse, thin and ± smooth or weakly rimose to ra<strong>the</strong>r thick, uneven and coarsely<br />
rimose, or sometimes with irregularly granular or verrucose areolae up to 0-3 mm diam, pale<br />
buff, pale to dark grey or bluish grey; in section without a cortex or hyahne covering layer, but<br />
walls <strong>of</strong> outermost hyphae sometimes greenish, K— , HNO^-f- purple-red. Phycobiont not<br />
micareoid; cells thin-walled, ± globose and c. 5-12 /xm diam, or ellipsoid and up to 15x 10 fxm.<br />
Apo<strong>the</strong>cia numerous, convex-hemispherical from <strong>the</strong> start, <strong>of</strong>ten becoming ± globose or<br />
tuberculate, black and <strong>of</strong>ten with bluish tinge, sometimes dark blue-grey (deep shade forms),<br />
0-2-0-5 diam, or to 1-2 mm when tuberculate. Hymenium 40-60(-70) /xm tall, dilute bright or<br />
sordid aeruginose, but <strong>of</strong>ten darkish aeruginose in upper and lower parts, and in vertical streaks<br />
(due to presence <strong>of</strong> stout pigmented paraphyses), K— or -I- aeruginose intensifying, HNO3-I-<br />
purple-red. Asci cylindrical-clavate, c. 35-45x8-12 /xm. Spores ellipsoid or ovoid, simple (an<br />
occasional 1-septate spore seen in a few collections), (6-)7-10x(2-5-)3-4-5 /am. Paraphyses