Resolving the species of the lichen genus Graphina Muell. Arg. in China, with some new combinations
Author
Jia, Ze-Feng
Author
Luecking, Robert
text
MycoKeys
2017
25
13
29
http://dx.doi.org/10.3897/mycokeys.25.13154
journal article
http://dx.doi.org/10.3897/mycokeys.25.13154
1314-4049-25-13
4.
Phaeographis haloniata (Zahlbr.) Z.F. Jia &
Luecking
comb. nov.
Graphina
haloniata
Bas.: Zahlbr., Feddes Repert. 31: 216, 1933; Type: China (Taiwan), Asahina 356 (holotype W!)
Graphina plumbicolor
= Zahlbr., Feddes Repert. 31: 217, 1933; Type: China (Taiwan), Asahina 340 (holotype W!)
Description.
Thallus corticolous, crustose, thick, surface grey to olive-green, waxy and slightly warty; apothecia lirelliform, elongate, single and rarely branched, at most 9.0 mm long and 0.5 mm wide; discs open, brownish, slightly pruinose, flat to somewhat concave; proper margin obvious, concolorous with thallus; proper exciple slightly carbonized basally; hymenium inspersed, 100-125
µm
high,
I-
; 8 ascospores per ascus, brownish, ellipsoid, muriform, 8/1-3 locular, I+ violet-brown, 30-35
x
10-14
µm
.
Chemistry.
Stictic acid.
Notes.
Because the material of
Graphina haloniata
in W has the typical characteristics of
Phaeographis
, such as open discs and brownish ascospores, it is here transferred to
Phaeographis
. The reported differences between
Graphina haloniata
and
G. plumbicolor
were in ascospore size: 30-34
x
12-14
µm
in
G. haloniata
and 29-30
x
10-11
µm
in
G. plumbicolor
(
Zahlbruckner 1933
), but in the studied material these measurements largely overlap. The two names were only reported from their type locations in Taiwan (
Zahlbruckner 1933
,
1940
;
Lamb 1963
;
Wang and Lai 1973
;
Wei 1991
).
Figuer 2. A, B Type
Graphina haloniata
(Asahina 356) C, D Type
Graphina plumbicolor
(Faurie 83).