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Thallus with conspicuous white pseudocyphellae on
the upper and/or lower surface
2
1
Thallus without pseudocyphellae
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2
With soredia or isidia
3
2
Without soredia or isidia
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3
Thallus with soredia
Cetrelia cf. olivetorum (Nyl.) W.L. Culb. & C.F. Culb.
Cetrelia cf. olivetorum
(Nyl.) W.L. Culb. & C.F. Culb.,
Contr. U.S. Natl. Herb. 34: 515 (1968).
Description:
Thallus to 10 cm diam.; lobes 0.5-2 cm wide,
rounded at apices and with wavy, crisped, raised margins;
upper surface glaucous-grey, sometimes tinged brown, dotted
with minute white pseudocyphellae; older part of lobes
sorediate at margins; lower surface black, somewhat
wrinkled, with scattered simple rhizines and a wide pale e-
rhizinate zone. Upper Cortex K+ yellow; atranorin. Medulla
K-, KC+ red, P-.
Ecology and distribution:
Reported from
Chiang Mai, Doi Inthanon National Park by WOLSELEY &
AGUIRRE-HUDSON (1997). Our material of
Cetrelia
is
presently under revision. For a distribution map see
RANDLANE & SAAG (2004).
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Thallus with isidia
Cetrelia cf. braunsiana (Müll. Arg.) W.L. Culb. & C.F. Culb.
Cetrelia cf. braunsiana
(Müll. Arg.) W.L. Culb. & C.F.
Culb., Contrib. U.S. Natl. Herb. 34 (7): 493-498 (1968).
Description:
Thallus medium to large, 5~17 cm broad; lobes
0.5~0.7 cm broad. Granular or coralloid isidia finely or
poorly developed along the margins or on the upper surface;
upper surface ashy-green, tan or uniformly brownish in old
herbarium specimens. Margins ascendent, with small,
punctiform to irregular pseudocyphellae rarely exceeding 1
mm. Lower surface black; margins brown or greyish; rhizines
black, c. 1 mm. Pycnidia present in some specimens, limited
to the tips of isidia. Thalllus K+ yellow; atranorin. Medulla
K-, C
−, KC+ pink, P−; alectoronic,
α
-collatolic acids, 4-
Omethylphsodic, and physodic acid.
Ecology and
distribution:
Reported from Chiang Mai, Doi Inthanon
National Park by SATO (1962) as
Cetraria collata
f.
isidiata
.
Our material of
Cetrelia
is presently under revision. For a
distribution map see RANDLANE & SAAG (2004).
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Upper surface K-
5
4
Upper surface K+ yellow (atranorin)
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Pseudocyphellae on the lower surface only. Apothecia abundant. Medulla P-
Nephromopsis pallescens (Schaer.) Y. S. Park var. pallescens
Nephromopsis pallescens
(Schaer.) Y. S. Park, Bryologist
93: 122, (1990).
Syn.:
Cetrariopsis pallescens
(Schaer.) Randlane & A. Thell,
Cryptog. Bryol. Lichénol. 16: 42 (1995);
Cetraria pallescens
Schaer., in Moritzi, Syst. Verzeichn.: 129, (1845–1846);
Cetrariopsis wallichiana
(Taylor) Kurok., Mem. Natl. Sci.
Mus. Tokyo 13: 140, (1980).
Description:
Thallus
dorsiventral, loosely attached; upper surface greenish yellow,
lower surface white to yellow. Lobes rather wide (8–15 mm).
Pseudocyphellae on the lower surface on special plug-like
outgrowths. Apothecia small and numerous, mainly laminal.
Cortex K-; usnic acid; Medulla K-, C-, KC+ reddish, P-;
alectoronic and/or lichesterinic, protolichesterinic acids. The