The Lichens and Lichenicolous Fungi of Belgium and Luxembourg ...

THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 151
On calcareous or slightly schistose rocks, incl. on
tufa, in shaded or periodically humid habitats.
B Mosan: AR. L Lorr.: RRR.
The material referred to this species in the study
area might be heterogeneous.
Lit.: Ertz: 20, NL97: 31-32.
caesia (Nyl.) Forssell, see P. schaereri
diffracta (Nyl.) Forssell. Reported erroneously from B
Mosan (NL84: 17, as P. cf. diffracta), the corresponding
specimen belonging to an unidentified cyanobacterial
lichen (NL97: 31).
tongletii B. de Lesd. Described from B Mosan by Bouly de
Lesdain (1909: 174-175) (type locality), but no material
seen. A name of uncertain application.
PUNCTELIA Krog
borreri (Sm.) Krog
Syn.: Parmelia borreri (Sm.) Turner, P. borreri
var. pseudoborreri (Asahina) Lambinon & Targé
Corticolous, on isolated trees (Fraxinus, Salix or
Ulmus).
B Mosan: RR, Ard.: RRR. L Lorr.: RRR. Probably
overlooked.
Most herbarium specimens named P. borreri belong
either to P. subrudecta or to P. ulophylla.
Lit.: La66: 442-443, Targé & Lambinon (1965).
subrudecta (Nyl.) Krog
Syn.: Parmelia subrudecta Nyl., P. borreri auct.
p. p., non (Sm.) Turner
Mainly on old isolated trees, in orchards, on roadside
or in pastures, rarely in forests or on slightly
calcareous rocks in disused quarries or on road
cuttings.
B Mar.: CC, Fl.: CC, Camp.: AR, Brab.: C, Mosan:
RR, Ard.: AR, Lorr.: AR. L Ard.: AR, Lorr.: AC.
Lit.: Ca: 148-149, Ho: 192, La66: 441-442, NL84: 16,
Qu: 110, 112, VGH: 114, WS: 43, 86, van Herk &
Aptroot (in prep.).
ulophylla (Ach.) van Herk & Aptroot, comb. ined.
Syn.: Parmelia borreri var. ulophylla (Ach.) Nyl.,
P. borreri auct. p. p., non (Sm.) Turner
Mainly on isolated trees, in orchards, on roadside or
in pastures, rarely in forests, often occurring
together with P. subrudecta.
B Mar.: RR, Fl.: RRR, Brab.: RRR, Mosan: RR,
Ard.: AR, Lorr.: RRR. L Ard.: RRR, Lorr.: R. F
Mosan: RRR, Lorr.: RR.
The distinction of this species from P. subrudecta
s. s. has been made recently and the exact
distribution and ecology of both species in the
area of study require further investigations.
Lit.: van Herk & Aptroot (in prep.).
stictica (Duby) Krog, syn. Parmelia stictica (Duby) Nyl.
Reported from B by DG: 36, but no material seen.
PYCNOTHELIA (Ach.) Dufour
papillaria (Ehrh.) Dufour
Syn.: Cladonia papillaria (Ehrh.) Hoffm.
Terricolous on sand or humus-rich soil, formerly
locally abundant in heathlands, also found once
on soil contaminated with heavy metals by a
disused mine.
B Brab.: RRR, Ard.: R, Lorr.: RRR. L Ard.: RR,
Lorr.: RR (†1891).
Lit.: La68: 74, La69: 85, 94, 130, Mü1: 144, Mü2: 196,
Feltgen (1902: 173), Vanek (1976).
PYRENIDIUM Nyl.
*hetairizans (Leight.) Arnold
On Staurothele fissa in a stream over siliceous rocks.
B - . L Lorr.: RRR.
Lit.: Molitor & Diederich (1997: 77).
PYRENOCHAETA De Not.
*xanthoriae Diederich
On Xanthoria parietina.
B - . L Lorr.: RR (type locality).
Lit.: Di: 251, LF1: 318-319.
PYRENOCOLLEMA Reinke
chlorococcum Aptroot & van den Boom
Terricolous, on zinc-contaminated soil, plant detritus
and weathered wood in industrial wasteland.
B Camp.: RRR. L - .
Lit.: Aptroot & van den Boom (1998).
halodytes (Nyl.) R. C. Harris
Syn.: Arthopyrenia halodytes (Nyl.) Arnold, A. kelpii
Körb., Thelidium halodytes (Nyl.) Erichsen
On artificial calcareous walls (incl. on bricks and
mortar) and on Balanus in the littoral zone.
B Mar.: R. L - . F Mar.: RR.
Lit.: La69: 82, 98, Duvigneaud & Lambinon (1963: 27),
Santesson (1939: 59).
+saxicola (A. Massal.) Coppins, see Naetrocymbe saxicola