Pertusaria Group 8

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

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1	Xanthones present	2
1a	Xanthones absent	11
2	Chloroxanthones present	3
2a	Lichexanthone present	4
3	5,7-Dichloro-3-O-methylnorlichexanthone present; spores 125-165 µm long; NZ	P. glaucomopsis Nyl.
3a	2-Chlorolichexanthone and 2'-O-methylperlatolic acid present; spores 100-130 µm long; NZ	P. circumcincta Stirt.
4	Lichexanthone and picrolichenic acid present	5
4a	Lichexanthone and depsides present	6
4b	Lichexanthone only present; spores 100-150 µm long; PNG	P. asterella Aptroot
5	Spores 160-195 µm long; picrolichenic acid present; PNG	P. myola A.W. Archer & Elix
5a	Spores 135-175 µm long; picrolichenic acid and homologues present; Aus.	P. clarkeana A.W. Archer
6	Lecanoric acid present; spores 110-175 µm long [120-315 µm (Dibben)]; cosmopolitan	P. velata (Turner) Nyl.
6a	Baeomycesic, thamnolic, hypothamnolic or haemathamnolic acid present	7
7	Thallus K+ violet, Pd-ve; hypothamnolic acid present; spores 115-150 µm long; Africa	P. tropica Vain.
	Spores 153-204 µm; China; [Pd+yellow!]; also on rock	P. leptospora Nitschke ex Lahm
7a	Thallus K+ yellow, Pd+ yellow	8
8	Baeomycesic acid present; spores 68-198 µm long; N.Am	P. floridana Dibben
8a	Thamnolic or haemathamnolic acid present	9
9a	Haemathamnolic acid present	10
9b	Thamnolic acid present; spores 100-130 µm long; Australia	P. miscella A.W. Archer
10	Spores 100-150 µm long; circumtropical	P. commutata Müll. Arg.
10a	Spores 150-170 µm long; S.Am.	P. superans Müll. Arg.
11(1a)	Fatty acids present; spores 100-200 µm long; N Eur & N.Am	P. panyrga (Ach.) Massal.
11a	Depsides, depsidones or picrolichenic acid present	12
12	Depsidones present	13
12a	Depsides or picrolichenic acid present	18
13	Norstictic acid present	14
13a	Physodalic acid present; spores 90-170 µm long [-242 µm, China]; Eur.	P. multipuncta (Turner) Nyl.
13b	Fumarprotocetraric acid present; spores 110-160 µm long; N.Am, Eur	P. multipunctoides Dibben
13c	Protocetraric acid and thamnolic acids present; spores 125-180 µm long; China	P. huangshanensis S.Yu & J.Wu ex Q. Ren
13d	Protocetraric acid present; spores 170-180 µm long	P. lacericans A.W. Archer
14	Norstictic and salazinic acids present; spores 120-150 µm long; S.Afr.	P. casta Zahlbr.
14a	Norstictic acid present; salazinic acid absent	15
15	Spores 200-300 µm long; thallus sorediate; Eur.	P. monogoniza Nyl.
15a	Spores < 200 µm long	16
16	Spores 150-175 µm long; disc white pruinose; apothecia pustulate; Aus, PNG	P. sublacerans A.W. Archer
16a	Spores < 160 µm long	17
17	Discs black, epruinose; spores 100-160 µm long; Japan; China	P. submultipuncta Nyl.
17a	Discs black or pink, pruinose; spores 70-150 µm long; Eur & N.Am.	P. waghornei Hult.
	Discs black; spores 30-80 µm long; Finland	P. atropallida Vain.
18(12a)	Lecanoric or picrolichenic acid present	19
18a	Thamnolic, haemathamolic, hypothamnolic or squamatic acids present	24
19	Lecanoric acid present; spores 125-160 µm long; S.Afr.	P. subvelatula Vain.
	Spores 300-325 µm; C+ red; Hawaii	P. contraria H.Magn.
	Spores 134-236 µm; C+ rose; Hawaii	P. hawaiiensis Erichs.
19a	Picrolichenic ± protocetraric acid present or spores >150 µm long	20
20	Spores 130-150µm long; ± protocetraric acid; also saxicolous and/or sterile	P. amara (Ach.) Nyl.
20a	Spores > 150 µm long	21
21	Atranorin present	22
21a	Atranorin absent	23
22	Spores 150-170 µm long; Aus; apothecia dish-shaped.	P. patellifera A.W. Archer
22a	Spores 137-180 µm long; S.Am; apothecia hemispherical.	P. grassiae Messuti & A.W. Archer
23	Epithecia yellow; spores 150-200 µm; NZ	P. flavovelata Elix & Malcolm
23a	Epithecia not yellow; spores 170-225 µm; Australia, PNG, Brazil, Fiji, Sri Lanka	P. lacerans Müll. Arg.
24(18a)	Squamatic acid present; spores 112-140 µm long; Indonesia	P. gedehana Zahlbr.
24a	Thamnolic, haemathamolic or hypothamnolic present	25
25	Thallus Pd-ve, K+ violet; hypothamnolic acid present; spores 140-170 µm long; Australia, NZ	P. novaezelandiae Szatala
25a	Thallus Pd+ yellow, K+ yellow	26
26	Haemathamnolic acid present	27
26a	Thamnolic acid present	29
27	Spores 105-150 µm long; S.Am; Japan	P. aggregata Müll. Arg.
27a	Spores140-200 µm long	28
28	Disc pallid; spores 140-200 µm long; S.Am.	P. variolosa (Kremp.) Vain.
28a	Disc black; spores 162-190 µm long; S.Am.	P. ornatula Müll. Arg
29	Spores usually < 150 µm long	30
29a	Spores usually > 150 µm long	31
30	Spores 112-132 µm long; disc black, pruinose; PNG	P. yupna A.W. Archer & Elix
30a	Spores 100-150 µm long, soredia yellow; Lappland	P. efflorescens Vain.
30b	Spores 100-140 µm long; soredia white; Japan	P. variolina Nyl.
31	Disc orange, pruinose; spores 150-185 µm long; NZ	P. scutellifera A.W. Archer & Elix
31a	Disc black, epruinose; spores 140-230 µm long; Japan	P. nigrodisca Oshio

Botanic Gardens Trust, Sydney, Australia

Science

Pertusaria Group 8

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