Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 9

Apothecia present, disciform; ascospores 2 per ascus; on wood

photo = view photo synonyms = view synonyms

1

Xanthones present 

2

1a Xanthones absent  4

2

4,5-Dichlorolichexanthone and perlatolic acid derivs. present; N.Am. 

P. sulcata Dibben

2a Thiophaninic acid present   3

3

Thiophaninic acid only present; spores 125-182 µm long; Canary Islands  

P. aceroae C.Hdez.-Padr. et al.

3a  Thiophaninic and norstictic acids present; spores 90-155 µm long; N.Am. 

 P. lecanina Tuck.

4

Lichen compounds absent 

5

4a Lichen compounds present  6

5

Spores 70-115 µm long; N. hemisphere, ?boreal 

P. stenhamerii Helb.

5a Spores 75-90 µm long; S.Am.  P. kalbii A.W. Archer & Messuti photo
5b Spores 80-110 µm long; epithecia K+violet; N.Am  P. rhexostoma Nyl. ex Hue synonyms

6

Depsidones [protocetraric, norstictic or salazinic acids] present 

7

6a Depsides [2-O-methylconfluentic, gyrophoric, lecanoric, planaic, thamnolic acids] present 11

7

Norstictic acid present  

8

7a Protocetraric acid present; spores 70-156 µm long; Japan, China P. composita Zahlbr. synonyms
7b Salazinic acid present [trace]; spores 50-55 µm long; China P. bambusetorum Zahlbr. photo

8

Spores to 120-300 µm long; disc black; Eur. 

P. rhodiensis Erichs.

8a Spores shorter 9

9

Spores 110-145 µm long 

10

9a Spores 80-100 µm long; Aus P. amnicola Elix & A.W. Archer

10

Spores 120-145 µm long; discs 0.8-1.3 mm diam.; Aus. Thailand 

P. asiana Vain.

10a Spores 110-135 µm long; discs 0.5-0.75 mm diam.; S.Am P. purpurascens Müll. Arg.

11(6a)

Thallus K-, KC+ red, C+red 

12

11a  Thallus K-, KC-, C- 

 13

11b  Thallus K+ yellow, thamnolic acid present; spores 100-140 µm long; Japan  

 P. subcomposita Oshio

12

Lecanoric acid?[KC++ red]; spores 105-125 µm long; Philippines 

P. philippina Vain.

12a Gyrophoric acid present; spores 130-162 µm long; NZ P. murrayi Elix & A.W. Archer

13

Planaic acid present; spores 100-180 µm long; China 

P. paraquilianensis Q. Ren & Z.T. Zhao 

13a 2-O-Methylconfluentic acid present; spores 50-140 µm long; Arctic alpine  P. saximontana Wetmore synonyms