Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 8

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

photo = view photo synonyms = view synonyms

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. synonyms

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 photo

5a Spores 135-175 µm long; picrolichenic acid and homologues present; Aus.  P. clarkeana A.W. Archer photo synonyms

6

Lecanoric acid present; spores 110-175 µm long [120-315 µm (Dibben)]; cosmopolitan 

P. velata (Turner) Nyl. synonyms

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. synonyms

  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 synonyms

10

Spores 100-150 µm long; circumtropical 

P. commutata Müll. Arg. synonyms

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. synonyms
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 synonyms
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. photo synonyms
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. photo

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 photo synonyms
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. synonyms
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. photo
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 synonyms