Botanic Gardens Trust, Sydney, Australia

Science




Pertusaria Group 18

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

photo = view photo synonyms = view synonyms

1

Xanthones absent

2

1a Xanthones present 4

2

Norstictic acid present; spores 84-144 µm long; S.Am. 

P. reagens (Zahlbr.) Redinger synonyms

  Spores 90-120 µm long; ostioles black; West Indies  P. plana Vain. photo
2a Stictic acid present  3

3

Stictic acid only present; spores 87-137(-165) µm long; ostioles punctiform; Java 

P. javanica Müll. Arg.

  Spores 140-160 µm long; ostioles becoming disciform; West Indies  P. dussii Vain. photo
3a Stictic and 2'-O-methylperlatolic acid present; spores 100-130 µm long; Aus P360  Pertusaria sp.

4

Lichexanthone present 

5

4a Chlorinated lichexanthones present  9

5

Lichexanthone and stictic or constictic acids present 

6

5a Fatty acids present or lichexanthone alone 8

6

Lichexanthone and stictic acid present 

7

6a Lichexanthone and constictic acid present; spores [sl. rough]125-160 µm long; S.Am  P. ochrostoma Müll. Arg. synonyms

7

Spores 97-125 µm long; S.Am. 

P. tenella Müll. Arg.

7a Spores 135-165 µm long; S.Am  P. tetrathalamia var. plicatula Müll. Arg.
7b Spores 70-90 µm long; with additional confluentic acid; Tahiti  P. trypetheliformis Nyl. synonyms
7c Spores 115-138 µm; with additional 2-O-methyl- and 2,4-di-O-methylolivetoric acid S.Am  P. ochrotheliza Nyl. photo

8

Lichexanthone and fatty acids present; spores 125-165(-200) µm long; S.Am.

P. anisospora Müll. Arg. synonyms

8a Lichexanthone alone; spores 90-95 µm long; Aus. P. subcerussata A.W. Archer
Spores 125-155 µm long; S.Am   P. tetrathalamia var. confirmans Müll. Arg.

9(4a)

2-Chlorolichexanthone present 

10

9a Polychlorinated lichexanthones present  11

10

Additional stictic acid present; spores 120-165 µm long; Java 

P. placentiformis (Mont. & Bosch) Müll. Arg. synonyms

10a Additional stictic and 2'-O-methylperlatolic acids present; spores 115-125 µm long; Aus   P. pallida A.W. Archer & Elix

11

2,4-, 2,5- Dichlorolichexanthones and 2,4,5-trichlorolichexanthone present 

12

11a 4,5-Dichlorolichexanthone present  13

12

Thallus not isidiate; with additional 2-O- and 2'-O-methylperlatolic acids; spores 80-110 µm long; Aus, PNG, New Caledonia  [±stictic acid] 

P. elliptica Müll. Arg. photo 

12a Thallus isidiate; with stictic acid; spores 80-95 µm long; Aus, NZ P. subisidiosa A.W. Archer

13

4,5-Dichlorolichexanthone only present; spores 80-110 µm long; Aus. 

P. leucophaea Elix & A.W. Archer photo

13a 4,5-Dichlorolichexanthone and additional compounds present 14

14

Additional planaic acid present; spores 75-97 µm long; Aus 

P. leucothelia Müll. Arg.

14a Additional stictic acid present 15

15

4,5-Dichlorolichexanthone and stictic acid present 

16

15a 4,5-Dichlorolichexanthone, stictic acid and additional compounds present  17

16

Spores 75-150 µm long; N.Am, S.Am. 

P. tetrathalamia (Fée) Nyl.

16a Spores 130-150 µm long; West Indies  P. ascisidioides Vain

17 

Stictic acid,  ±2-chlorolichexanthone ±4-chlorolichexanthone present; spores 100-135 µm long; S.Am. 

P. tetrathalamia var. decipiens Müll. Arg. synonyms
17a Stictic and 2'-O-methylperlatolic acids present; spores 80-106 µm long 18
18

Thallus isidiate; Thailand 

P. microstoma Müll. Arg. var. isidiata Jariangprasert
18a Thallus not isidiate; Aus, Java, PNG, New Caledonia P. microstoma Müll. Arg.