02.06.2013 Views

Baden-Württemberg - Lichens of Wales

Baden-Württemberg - Lichens of Wales

Baden-Württemberg - Lichens of Wales

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

settlements, m.-v.acidoph., m.-r.(s.)photoph., a-<br />

to r.nitroph., r.toxitol., above all in the<br />

Parmelietum cap. and (air polluted regions) in<br />

the Buellietum punctatae – (arct-)bor-med –<br />

frequent to very frequent throughout the entire<br />

region, in the south (above all in calcareous<br />

regions) rarer.<br />

LIT: SCHEIDEGGER 1993.<br />

Amygdalaria Norman<br />

(Determined ↑ Lecidea PT 5/PT 6)<br />

Introduction<br />

The Amygdalaria species are crustose lichens<br />

with sunken black, lecideine apothecia, green<br />

algae as symbionts and in addition blue-green<br />

algae in brown cephalodia. Of the up till now,<br />

eight species exclusively living on silicates,<br />

which are very closely related to the Porpidia<br />

genus, three occur in Germany, A. consentiens<br />

(very rare in the Bavarian Alps), A. pelobotryon<br />

(very rare in the Rhön) and A. panaeola, an<br />

arctic-alpine lichen, which is known from the<br />

high Black Forest, Bohemian Forest and from the<br />

Rhön and grows on sites that are relatively long<br />

snow-covered, cool moist on low rocks.<br />

Genus Characteristics<br />

Thallus crustose, clearly developed, <strong>of</strong> flat to<br />

convex areoles, beige, gray, or brown, <strong>of</strong>ten rose<br />

tinted, with brown-red (to gray) cephalodia<br />

between the areoles, sometimes with soralia.<br />

Photobiont Trebouxia-like green algae,<br />

Stigonema in the cephalodia. Ap. sunken,<br />

Aspicilia-like with thalloid margin, rarely sitting<br />

up, black to brown-black, flat to concave,<br />

sometimes with a navel, without definite, rarely<br />

with proper margin. Exc. commonly weakly<br />

developed and then, rarely (not in the species<br />

occurring in Germany) clearly developed, brown.<br />

Hyp. black-brown. Hym. I+ blue, <strong>of</strong><br />

paraphysoid-like, branched and reticulate,<br />

hyphae shrunken toward the ends and at the<br />

septae. Epihym. brown to brown-black. Asci<br />

narrow clavate, <strong>of</strong> the Porpidia-type. Sp. 1celled,<br />

ellipsoidal, when young surrounded by a<br />

slime halo. Pycnosp. bacillar. Ch: <strong>of</strong>ten with<br />

Gyrophoric acid.<br />

Ecology and Distribution <strong>of</strong> the Species<br />

Amygdalaria panaeola (Ach.) Hertel & Brodo<br />

(Lecidea p. (Ach.) Ach.<br />

In high montane to alpine, rarely montane places<br />

on moist neutral to basic silicate rock (mineralrich<br />

Gneiss, Slate, basalt etc.) on high<br />

precipitation, longtime snow covered, cool,<br />

rather light-rich , usually away from the sun<br />

habitats, e.g. in boulder slopes, maritime<br />

boulders, single boulders in thin turfs,<br />

subneutroph.-m.acidoph., m.-r.photoph.,<br />

anitroph., e.g. in the Porpidion tub. – arct-mieurh’mo/alp<br />

– (v.)rare, because <strong>of</strong> removal <strong>of</strong> stones<br />

(2); süSch, Vog, He (Meissner, Rhön, je lx),<br />

BayW<br />

Amygdalaria pelobotryon (Wahlenb.) Norman<br />

(Aspicilia p. (Wahlenb.) Th.Fr.)<br />

Rather like A. panaeola – arct-bor(-mieur-h’mo)<br />

– very rare; Rhön (1x)<br />

LIT.: BRODO & HERTEL 1987<br />

Anaptychia Körber<br />

(Determined ↑ Physcia)<br />

Introduction<br />

The perhaps 10 species <strong>of</strong> the genus are gray or<br />

brown, narrow lobed fruticose and foliose lichens<br />

with flat lecanorine apothecia with dark brown to<br />

black disk and greenish to brown-black twocelled<br />

spores. In a few species – as in the case <strong>of</strong><br />

A. ciliaris – the ends <strong>of</strong> the thallus lobes are<br />

conspicuously bristly ciliate.<br />

Only A. ciliaris has been recorded in the<br />

region. It lives on mineral-rich, <strong>of</strong>ten slightly<br />

dust impregnated bark <strong>of</strong> deciduous trees on<br />

light-rich habitats, <strong>of</strong>ten on avenue trees. The<br />

lichen is as a result <strong>of</strong> developing air pollution<br />

strongly in decline. Formerly distributed over<br />

the entire <strong>Baden</strong>-<strong>Württemberg</strong> region, it is today<br />

disappearing in the north and northwest. The<br />

European area stretches from the Mediterranean<br />

area up to southern Scandinavia.<br />

Genus Characteristics<br />

Thallus fruticose, segments branched,<br />

dorsiventrally flattened, upper side gray to<br />

76

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!