Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 21

Apothecia present, verruciform; ascospores 8 per ascus, on rock

photo = view photo synonyms = view synonyms

1

Xanthones present 

2

1a Xanthones absent  19

2

Lichexanthone or derivatives present 

3

2a Arthothelin, thiophanic or thiophaninic acids present   10

3

Lichexanthone present 

4

3a 4,5-Dichlorolichexanthone present 7

4

Lichexanthone and stictic acid present; spores 2-seriate, 115-150 µm long; Aus, Easter Island 

P. hadrocarpa Zahlbr. synonyms

4a Lichexanthone and depsides ± protocetraric acid present  5

5

Lichexanthone and depsides present 

6

5a Lichexanthone, planaic and protocetraric acids present; spores rough walled, 1-seriate 80-125 µm long; Central Afr   P. lambionii A.W. Archer et al.

6

Lichexanthone and 2-O-methylconfluentic acid present; spores 1-seriate, 60-70 µm long; Central Afr 

P. clercii Messuti & A.W. Archer

6a Lichexanthone and 2-O-methylperlatolic acid present: spores 1-seriate, 75-105 µm long  Aus, PNG, S.Am, Mexico P. consanguinea Müll. Arg. synonyms
  On dead moss; spores 80-95 µm long; Japan P. nagasakensis Nyl. photo

7(3a)

4,5-Dichlorolichexanthone and 4-chlorolichexanthone present; on moss; spores 2-seriate, 150-185 µm long; S.Am 

P. confundens Nyl.

7a 4,5-Dichlorolichexanthone and norstictic acid or 2'-O-methylperlatolic acid present  15

8

Norstictic acid present; spores 70-85 µm long, irreg. 2-seriate; Ins. Rodrigues 

P. impallescens Nyl. synonyms

8a 2'-O-Methylperlatolic acid present   16

9

Spores 2-seriate, 85-105 µm; Aus 

P. lavata Müll. Arg. photo

9a Spores 1-seriate, 45-75 µm; Aus, NZ P. lophocarpa Körber synonyms

10(2a)

Thiophaninic acid present 

11

10a Arthothelin or thiophanic acid present    17

11

Thiophaninic acid only present; spores 2-seriate, 62-75 µm long; S.Afr. 

P. diaziana A. Massal.

Spores 65 µm  long; Eur, Asia P. flavicans Lamy
11a Additional depsidones or 2-O-methylperlatolic acid present  12

12

Additional 2-O-methylperlatolic acid present; spores 1-seriate, 60-85 µm long; Aus, NZ, PNG, Zimbabwe. 

P. petrophyes C. Knight photo synonyms

12a Additional norstictic or stictic acids present  13

13

Thiophaninic acid and norstictic acid present; spores 85-110 µm long; Eur

P. huneckiana Feige & Lumbsch

13a Thiophaninic acid and stictic acid present 14

14

Thallus lacking isidia and soredia  

15

14a Thallus isidiate or sorediate 16

15

Spores 2-seriate, 70-90 µm long; Aus 

P. dissita Elix & A.W. Archer

15a Spores 1-seriate, 65-80 µm long;  S.Am  P. hypoxantha Malme
15b Spores 70-100 µm long ?seriate; Eur. P. rupicola (Fr.) Harm.

16

Thallus isidiate; spores 1-seriate, 50-90 µm long; Aus  

P. xanthodactylina A.W. Archer & Elix

16a Thallus sorediate; spores 50-75 µm long, 1-seriate; Aus, NZ, PNG P. xanthoplaca Müll. Arg. photo synonyms

17(10a)

Thiophanic acid present; spores 2-seriate, 60-85 µm long; Aus 

P. thula A.W. Archer
17a Arthothelin present  18
18

Spores subglobose, hyaline to brown, 1-seriate, 12-30 µm long; SW US  

P. occidentalis Bratt, Lumbsch & Schmitt
18a Spores ellipsoid, hyaline to pale grey, 2-seriate, 60-75 µm long; Aus, NZ S.Afr. S.Am. P. melanospora Nyl. synonyms
19(1a)

Lichen compounds absent; spores 2-seriate, 37-55 µm long; Aus.  

P. paratropa Müll. Arg.
Spores 1-seriate, 50-58 µm long; S.Afr.  P. pseudomelanospora V. Wirth & Elix 
19a Lichen compounds present  20
20

2'-O-Methylperlatolic acid present 

21
20a Norstictic, stictic or virensic acid present  22
21

Spores hyaline, 1-seriate, 65-85 µm long; S.Am 

P. cerebrinula Zahlbr. synonyms
21a Spores hyaline to brown, 2-seriate, 55-80 µm long; N.Am  P. islandica Bratt, Lumbsch & Schmitt
22

Stictic acid present; spores 2-seriate, 30-36 µm long; Aus 

P. macra Müll. Arg.
  Spores 25-45 µm long; Eur.  P. eiteriana Erichs. synonyms
22a Norstictic or virensic acid present 23
23

Virensic acid present; spores 80-125 µm long; S.Am 

P. rochae  Räsänen synonyms
23a Norstictic acid present  24
24

Spores 1-seriate, 80-135 µm long; ± virensic acid; S.Am 

P. patagonica Müll. Arg.
Spores 50-70µm long, N.Am, Arctic  P. octomela (Norm.) Erichs
24a Spores 2-seriate  25
25

Spores 115-150 µm long; NZ, S.Am. 

P. perrimosa Nyl. synonyms
25a Spores 87-112 µm long; S.Am  P. colorans Malme