Pertusaria Group 6

Apothecia present, verruciform; ascospores 1 per ascus; on wood

= view photo = view synonyms

1	Xanthones present	3
1a	Xanthones absent; protocetraric or fumarprotocetraric acid present	2
2	Protocetraric acid present; thallus not isidiate; spores 220-225 µm long; Indonesia	P. leeuwenii Zahlbr.
2a	Fumarprotocetraric acid present; thallus isidiate; spores 160-280 µm long; Greece	P. graeca Erichs.
3	Thiophaninic acid present	4
3a	Lichexanthone or 4,5-dichlorolichexanthone present	7
4	Thiophaninic acid only present; spores 142-187 µm long; ostioles black, disciform; Canary Is	P. calderae C.Hdez.-Padr et al.
4a	Thiophaninic acid and 2'-O-methylperlatolic or confluentic acids present	5
5	Confluentic acid present; spores 150-250 µm long; Greece	P. corinthiaca Erichs.
5a	2'-O-Methylperlatolic acid present; spores 120-220 mm long	6
6	Spores 180-220 µm long; Eur	P. caesioalba (Flot.) Nyl.
6a	Spores 120-150µm long; ± planaic acid; Turkey	P. paramerae A.Crespo & Vezda
7	Lichexanthone present; spores 170-225 µm long; S.Am. [also 2/ascus]	P. tetrathalamia var. major Müll. Arg.
7a	4,5-Dichlorolichexanthone and stictic acid present; spores rarely 1 per ascus, 262 x 45 µm, usually 4 per ascus (q.v.); West Indies	P. ascidioides Vain.