Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 4

Apothecia absent; soredia present; on wood

photo = view photo synonyms = view synonyms

1

Xanthones present

2

1aXanthones absent  9

2

Lichexanthone or 4,5-dichlorolichexanthone present 

3

2aArthothelin, thiophaninic acid or thuringione present  5

3

4,5-Dichlorolichexanthone present 

4

3aLichexanthone present with depsone, depsidone or depside 7
3b

2,4- and 2,5-Dichlorolichexanthone, 2,4,5-trichlorolichexanthone and stictic acid present; Australia and New Zealand; also saxicolous 

P. puffina A.W. Archer & Elix photo 

4

4,5-Dichlorolichexanthone present alone; Central Am. RL 33103 (F) 

Pertusaria sp.

4a4,5-Dichlorolichexanthone and stictic acid present: N.Am

 P. expolita Harris

 Aus, PNG P. balekensis A.W. Archer & Elix photo

5

Thiophaninic acid and depsidones or depside present

6

5aArthothelin and thuringone present; Australia P. flavopunctata A.W. Archer & Elix
5bArthothelin, thuringone and stictic acid present; Norfolk Island P. cyathicola Elix

6

Thiophaninic acid and stictic acid present; Australia 

P. maritima A.W. Archer & Elix photo 

6aThiophaninic acid and norstictic acid present; N.Am P. azulensis de Lesd.
6bThiophaninic and gyrophoric acid present; Central Am, RL 33030 (F)    Pertusaria sp.

7

Lichexanthone, picrolichenic and superpicrolichenic acids present; Norfolk Island, Australia  

P. verdonii A.W. Archer

7aLichexanthone & dihydropertusaric acid present: Fiji

P. cisalbescens Elix & A.W.Archer photo 

7bLichexanthone and methyl 2'-O-methylmicrophyllinate present

 P. variabilis Elix & A.W. Archer

7cLichexanthone and confluentic, thamnolic, or stictic acid present 

 8

8

Lichexanthone and thamnolic acid present; Australia, PNG, Sri Lanka 

P. leucosorodes Nyl. photo synonyms

8aLichexanthone and confluentic acid present; Australia, ThailandP. confluentica Jariangprasert 
8bLichexanthone and stictic acid present; HawaiiP. oahuensis H. Magn. photo

9a(1a)

Fatty acids present 

 10

9bDepsides or depsidones present 11

10

Allopertusaric acid present; Northern Hemisphere 

P. albescens (Huds.) Choisy & Werner synonyms

10aLichesterinic acid present; Central AfricaP. krogiae A.W. Archer et al.
10bIsomyelochroic acid present P. ophthalmiza (Nyl.) Nyl.

11(9a)

Depsidones present 

12

11aDepsides or picrolichenic acid present or lichen compounds absent 18

12

Norstictic, stictic or fumarprotocetraric acid present 

13

12aPsoromic acid present; Australia & NZP. psoromica A.W. Archer & Elix photo

13

Stictic acid present; Australia 

P. albopunctata A.W. Archer & Elix photo

13aNorstictic or fumarprotocetraric acid present 14

14

Fumarprotocetraric acid present; Eur, N.Am; also fertile 

P. borealis Erichs.

14aNorstictic acid present 15

15

Australia; soralia white 

16

15aElsewhere 17

16

Soralia 0.5-1 mm diam., well-defined; stictic acid absent. 

P. erythrella Müll. Arg. photo

16aSoralia to 2 mm diam, ill-defined; with additional stictic acid; sp. nov.P. alloerythrella
17a

India; soralia ochraceous to ochraceous red, 0.5-2 mm diam.

P. colorata Awasthi & Srivastava
17bWest Indies; K+ red; soralia 0.4-2 mm diam. P. torulosa Vain.
18(11a)

Lichen compounds absent; Philippines 

P. amara var. philippinensis Räs. photo
18aDepsides or depsone present19
19Thamnolic acid or 2’-O-methylperlatolic acid or hypothamnolic acid present20
19aLecanoric or picrolichenic acids present 21
20Thamnolic acid present; Japan P. violacea Oshio
20a2'-O-Methylperlatolic acid present; ThailandP. uttaraditensis Jariangprasert
20bHypothamnolic & cryptothamnolic acids present; ChinaP. subviolacea Q. Ren photo 
21Lecanoric acid present; also fertile; Aus, PNG; cosmopolitan P. velata (Turner) Nyl. photo synonyms
Lecanoric and variolaric acids present P. hemisphaerica (Flörke) Erichs. synonyms
21aPicrolichenic acid present 22 
22Picrolichenic ± protocetraric acids present; ± fertile 

P. amara (Ach.) Nyl. synonyms

22a ?Picrolichenic acid only present; K-, C-, KC+ reddish; Hawaii P. molokaiensis H. Magn.
22bPicrolichenic and subpicrolichenic acids present; PNG P. buloloensis A.W. Archer, Elix & Streimann photo