Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 17

Apothecia present, verruciform; ascospores 4 per ascus, smooth; on wood

photo = view photo synonyms = view synonyms

1

Xanthones present 

2

1a  Atranorin only present; spores  88-104 µm long; Thailand  P. phukaensis Jariangprasert
1bXanthones absent 38

2

Lichexanthone or derivatives present 

3

2aNorlichexanthone derivatives present [including thiophaninic acid] 29

3

Lichexanthone present 

4

3aChlorinated lichexanthone derivatives present 11

4

Lichexanthone only present; spores 80-120 µm long; N.Am, Central Afr. 

P. valliculata Dibben

4aLichexanthone and stictic acid ± depsides or 2-chlorolichexanthone present 5

5

Lichexanthone and 2-chlorolichexanthone present 

6

5aLichexanthone and stictic acid ± depsides present7

6

With additional 2-O-methylsuperlatolic and 2-O-methylhyperlatolic acids; spores 90-115 µm long; Aus, S.Am, Cuba, PNG 

P. depressa (Fée) Müll. Arg. synonyms

6aWith additional stictic acid; spores 85-120 µm long; Aus. P. atromaculata A.W. Archer & Elix

7

Lichexanthone, constictic and stictic acids present; spores 75-130 µm long; S.Am 

 P. rhodiza Nyl.

7aLichexanthone, stictic acid and depsides present8

8

Confluentic acid present 

9

8aStenosporic acid derivatives present 10

9

Spores 2-4/ascus, 80-176 µm long; Thailand 

 P. inthanonensis Jariangprasert

9aSpores 4-6-8/ascus, 87-110 µm long; S.Am.P. gracilis var. heteromera Müll. Arg.

10

2'-O-Methylstenosporic acid present; spores 90-110 µm long; Thailand

 P. elixii Jariangprasert

10a2,2'-Di-O-methylstenosporic acid present; spores (3-)4/ascus 76-92 µm long; Thailand P. alboaspera var. tetraspora Jariangprasert photo

11(3a)

2-Chlorolichexanthone, stictic, 2-O-methylisohyperlatolic and 2-O-methylsuperlatolic acids present; spores 105-125 µm long; Aus. 

P. follmanniana A.W. Archer & Elix photo

 2-Chlorolichexanthone and 2-O-methylsuperlatolic acid present; spores 100-120 µm long  P438var. nov. 'P. follmanniana var. toonumbarensis' 
11a4.5-Dichlorolichexanthone or 2,4,5-trichlorolichexanthone present 12

12

4,5-Dichlorolichexanthone present 

13

12a2,4,5-Trichlorolichexanthone present 26

13

4,5-Dichlorolichexanthone only present; spores 75-110 µm long; ostioles inconspicuous,  pale brown, translucent; S.Am., Aus

P. platystoma Malme  photo synonyms 

13a4,5-Dichlorolichexanthone and depsidones and/or depsides present14

14

4,5-Dichlorolichexanthone and norstictic acid present; spores 80-110 µm long; S.Am; [H-NYL 3702 pm] 

P. 'rhodiza' Nyl. synonyms

14a4,5-Dichlorolichexanthone and stictic acid or depsides present 15

15

4,5-Dichlorolichexanthone and depsides present 

16

15a4,5-Dichlorolichexanthone and stictic acid ± depsides present18

16

4,5-Dichlorolichexanthone and 2,2'-di-O-methylstenosporic acid present; spores 2-3(-4)/ascus 84-142 µm long; Thailand 

P. subplanaica var. tetraspora Jariangprasert & A.W.Archer

16a4,5-Dichlorolichexanthone and 2'-O-methylstenosporic acid; spores 80-100 µm; Thailand P. kansriae Jariangprasert
16b4,5-dichlorolichexanthone and 4-O-demethylplanaic acid present; spores 100-156 µm long; Thailand  P. khuntanensis Jarinagprasert
16c4,5-Dichlorolichexanthone and perlatolic acid derivatives present17
17

4,5-Dichlorolichexanthone and planaic acid present; spores (1-)2-3/ascus 90-174 µm long; Thailand 

P. siamensis Jariangprasert 
 4,5-Dichlorolichexanthone, planaic and 2-O-methylperlatolic acids present; spores 4/ascus, 95-125 µm long; Aus P. doradorensis Elix & A.W. Archer
 
17a4,5-Dichlorolichexanthone and 2-O-methylperlatolic acid present; spores 80-94 µm long; Aus, S.Am P. malmei Elix & A.W. Archer photo synonyms
Spores 64-78 µm long; Vanuatu P. wilsoneana A.W. Archer & Elix photo
17b4,5-Dichlorolichexanthone and 2'-O-methylanziaic acid present; spores 84-146 µm long; Thailand P. phusoidaoensis Jariangprasert. photo
17c4,5-Dichlorolichexanthone and 2-O-methylisohyperlatolic; spores 105-115 µm; PNG P. streimannii Elix & A.W. Archer photo
18

4,5-Dichlorolichexanthone and stictic acid only present 

 19
18a4,5-Dichlorolichexanthone, stictic acid and depsides present21
19

Thallus isidiate; spores 90-160 µm long; Eur. 

P. coronata (Ach.) Th.Fr. synonyms
19aThallus not isidiate20
20

Spores 2-3(-4)/ascus; 75-100 µm long; Tahiti; verrucae confluent

P. hypochrysea Vain.
Spores 2-4/ascus, 51-140 µm long; pantemperate, N. hemisphere; Hawaii; verrucae flattenedP. leucostoma (Bernh.) Massal. synonyms
 Spores 4/ascus, 112-142 µm long, apothecia multiostiolate; Fiji

 P. athrocarpa var. deficiens Elix & A.W. Archerphoto

20aSpores 60-90 µm;  Eur. long; verrucae contricted at base P. caesioumbrina Eitner
20bSpores 150-185 µm long, (2-)4(-5) per ascus; JapanP. glauca Zahlbr.
21

4,5-Dichlorolichexanthone, stictic acid and perlatolic or stenosporic acid derivatives present

22
21a4,5-Dichlorolichexanthone, stictic acid and 2-O-methylconfluentic acid present;  spores (3-)4/ascus, 85-125 µm long; PNGP. bogia A.W. Archer & Elix
 
21b4,5-Dichlorolichexanthone, stictic acid and confluentic acid present; spores 75-90 µm long; India P. cinchonae Müll. Arg.
 
22

4,5-Dichlorolichexanthone, stictic acid and perlatolic acid derivatives present 

23

22a4,5-Dichlorolichexanthone, stictic acid  and 2'-O-methylstenosporic acid present; spores 3-4/ascus, 80-108 µm long P. thailandica Jariangprasert
23

4,5-Dichlorolichexanthone, stictic acid and planaic acid present; spores 82-100 µm long; S.Am.

P. bonariensis Malme 
23a4,5-Dichlorolichexanthone, stictic acid and 2-O-methylperlatolic or 2'-O-methylperlatolic acidpresent24

24

Containing 2'-O-methylperlatolic acid; spores 90-125 µm long; ostioles hyaline; Aus 

P. hermaka A.W. Archer photo

 Spores 130-150  µm long; ostioles black; Fiji

 P. athrocarpa Elix & A.W. Archer photo

24aContaining 2-O-methylperlatolic acid25
25

Spores (2-)4/ascus, 163-200 µm long; PNG, Philippines 

P. copelandii Vain. 
25aSpores 4/ascus, 100-120 µm long; PNGP. laeana A.W. Archer & Elix
26(12a)

2,4,5-Trichlorolichexanthone, 2-O-methylperlatolic and stictic acids; spores (2-)3(-4)/ascus, 70-100 µm long; Aus

 P. tjaetabensis A.W. Archer & Elix
 2,4,5-Trichlorolichexanthone, 2'-O-methylperlatolic and stictic acids; spores 100-130 µm longP 360 Pertusaria sp.
26a2,4,5-Trichlorolichexanthone and 2,5-dichlorolichexanthone present 27
27

Additional 2-O-methylperlatolic acid present; spores 70-80 µm; Aus 

P. aquilonia A.W. Archer & Elix
27aAdditional stictic acid present 28 
28

Additional confluentic acid present; spores (3-)4/ascus, 64-75 µm long; Aus 

P. ewersii A.W. Archer & Elix photo
28aDepsides absent; spores 95-125 µm long; Sri Lanka, Java, PNG, Aus. P. ceylonica Müll. Arg. synonyms
29(2a)

Arthothelin and derivatives present 

30
29aThiophaninic acid present 31
30

6-O-Methylarthothelin, arthothelin and stictic acid present; spores 117-125 µm long circumtropical?

P. quassiae (Fée) Nyl. synonyms
30a6-O-Methylarthothelin and arthothelin present; spores 45-62 µm long; PNGP. inconspicua A.W. Archer & Elix photo
31

Stictic or norstictic acid present, or stictic acid absent 

32
31aDepsides or anthraquinone present37
32

Thiophaninic and norstictic acids present 

33
32aStictic acid present or absent 34
33

Spores 68-110 µm long; N.Am 

P. wulfenoides de Lesd.
33aSpores 85-120 µm long; SocotraP. socotrana Müll. Arg. 
34

Lacking stictic acid 

35
34aWith stictic acid36
35

2'-O-Methylperlatolic acid present; spores 4/ascus, 95-120 µm long: PNG 

P. rechingeri Zahlbr.
35aGlomelliferic acid present; spores (2-)3/ascus, 80-120 µm long; Aus P. glomellerifica Elix & A.W. Archer photo
35b2-O-Methylperlatolic acid or 2,2'-di-O-methylstenosporic acid or confluentic acid present; spores 70-110 µm long; ostioles black, conspicuous; Aus P. trimera (Müll. Arg.) A.W. Archer photo
35cThiophaninic acid only present; spores 4/ascus, 70-80 µm; New Caledonia, Thailand   P. endochroma Müll. Arg. 
36

Spores (3-)4/ascus, 75-90 µm long; Aus, China 

P. aberrans Müll. Arg. 
36aSpores 4/ascus, 100-130 µm long; JapanP. boninensis Shibuichi
37(31a)

Unknown anthraquinone present [K+violet]; spores 4/ascus, 100-160 µm long; Japan also saxicolous 

P. kashiwadanii Shibuichi 
37a4-O-Methylisocryptochloropheaic acid present; spores 4/ascus, 95-125(-145) µm long P. paradoxica A.W. Archer & Elix var. tetraspora A.W. Archer & Elix
38(1a)

Stictic or norstictic acid present 

39
38aStictic and norstictic acid absent 44
39

Stictic acid present 

40
39aNorstictic acid present43
40

Spores 100-150 µm long, walls rough;  Japan 

P. radiata Oshio
 Spores 140-160 µm, walls smooth; West IndiesP. dussii Vain. photo
40aStictic acid and perlatolic or stenosporic acid derivatives41
41

Perlatolic acid derivatives present 

42
41aMethyl 2'-O-methylstenosporate present; spores 2-3/ascus 118-150 µm long; Thailand P. methylstenosporica Jariangprasert
42

2-O-Methylperlatolic acid present; spores 2-(3-4)/ascus, 84-130 µm long; Thailand; Aus 

P. loeiensis Jariangprasert
42a2'-O-Methylperlatolic acid present; spores 115-150 µm long; PNG P. novaeguineae A.W. Archer & Elix
43(39a)

Spores 85-110 µm long; Hawaii [K++red] 

P. rubroreagens H. Magn.
43aSpores 62-85 µm; ostioles pale; S.AmP. cryptocarpa Nyl. 
Spores 65-85 µm; ostioles black; PNGP. naduriensis A.W. Archer & Elix photo
44(38a)

Lichen compounds present 

45
44aLichen compounds absent 50
45

2-O-Methylsuperlatolic, 2'-O-methylisohyperlatolic or protocetraric acid present 

46
45a2'-O-Methylperlatolic or confluentic acid present 49
46

Protocetraric acid present; spores 16-22 µm long; S.Am 

P. huanicola Messuti & A.W. Archer
46aPerlatolic acid or its derivatives present47
47Perlatolic acid and fumarprotocetraric acid present; spores 90-150 µm long; Japan  P. nakamurae (Räs.) Dibben synonyms
47aDerivatives of perlatolic acid present48
48

2-O-Methylsuperlatolic acid present; spores 3-(4)/ascus, 80-100 µm long; PNG 

P. manamensis A.W. Archer & Elix
48a2'-O-methylisohyperlatolic acid present; spores 65-69 µm long; Mexico P. polystictoides Vain.

 photo

49Confluentic acid present; spores 2-3(-4)/ascus, 72-134 µm long; Thailand P. orientalis Jariangprasert 
49a

2'-O-methylperlatolicacid present:

Spores (2-)3/ascus, 140-168 µm long; China

Spores 90-120 µm long; Cook Islands 

 

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

P. atroguttata A.W. Archer & Elix photo

50(44a)

In S.Am; spores 80-100 µm long

P. polita var. tetramera Müll. Arg.
50aIn Australasia51
51In PNG; spores 90-110 µm long; ostioles inconspicuous, translucent    P. plethocarpa A.W. Archer, Elix & Streimann photo
51aIn Norfolk Island; spores 95-115 µm long; ostioles black, lacking a hyaline marginP. nebulosa A.W. Archer photo