Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 10

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

photo = view photo synonyms = view synonyms

1

Thiophaninic and stictic acids present 

2

1a Thiophaninic acid absent; depsidones or depsides present  3

2

Spores 100-180 µm long, 'transvesely striate'; Eur. 

P. pluripuncta Nyl. synonyms

Spores rough walled, 100-180 µm long; France  P. gallica de Lesd 
Spores 60-80 µm long; on moss; N.Am  P. flavicunda Tuck.
2a Spores 48-60 µm long; on moss; N.Am Arctic P. atra Lynge

3

Depsidones [norstictic, protocetraric or salazinic acids] present 

4

3a Depsides [lecanoric, 2-O-methylperlatolic or thamnolic acids] present  14

4

Protocetraric acid present; spores 100-126 µm long; disc white pruinose; thallus esorediate; Eur.  

P. pseudoparotica Sipman

Spores 100-150 µm long; thallus sorediate; Eur  

 P. digrediens Nyl.

4 Norstictic or salazinic acid present  

5

5

Salazinic acid present; spores 120-150 µm long; Greece 

P. parotica Sipman

5a Norstictic acid present  6

6

Norstictic acid only present 

7

6a Norstictic and protocetraric or picrolichenic acids present  10

7

Spores ≥ 110µm long 

8

7a Spores ≤ 110 µm long 9

8

Spores 120-175 µm long; S.Am. 

P. albidopallens Nyl. 

8a Spores 110-115 µm long; S.Am.  P. scutellina Nyl.
8b Spores 110-160 µm long; Eur.  P. pentelici J. Steiner

9

Spores 80-100 µm long, becoming grey brown; Eur 

P. lactescens Mudd

9a Spores 88-92 µm long; S.Am   P. lecanorina Nyl.
9b Spores 75-110 µm long; N.Am   P. brattiae Lumbsch & T.H. Nash

10(6a)

Norstictic and protocetraric acids present; spores 80-150 µm long; N. Afr 

P. fdoulesiana Harm.

10a  Norstictic and picrolichenic acids present  

 11

11

Spores ca. < 80 µm long 

12

11a Spores > 80 µm long 13

12

Spores 67-70 µm long; S.Afr. 

P. wawreanoides Nyl.

12a Spores 46-56 µm long; S.Afr., S.Am  P. subdealbata Nyl. photo
12b Spores 70-85 µm long [110-115 µm long, H-NYL 23820]; S.Afr.  P. leonina Stizenb.

13

Spores 84-125(-150) µm long; S.Am.  

P. alterimosa Darbishire

13a Spores 80-150 µm long; N.Afr.  P. fdoulesiana Harm. 
13b Spores 162-250 µm long; S.Am.  P. rugifera Müll. Arg.

14(3a)

Thamnolic acid present; spores 80-110 µm long; N.Am, China, Eur. 

P. trachythallina Erichs. synonyms

14a  Lecanoric acid or 2-O-methylperlatolic acid present  

 15

15

Lecanoric acid present[?]C+red; spores 140-160 µm long; Asia 

P. haematommoides Zahlbr.

15a 2-O-Methylperlatolic acid present; on soil, moss; spores 50-160 µm long; Arctic alpine  P. saximontana Wetmore synonyms