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Keys to the macrolichens and checklist of the lichens and ...

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3b. Medulla C- ............................................................................................................... 4<br />

4a. Medulla P+ yellow, K+ red (salazinic)....................................................... B. isidiza<br />

4b. Medulla P+ red (pro<strong>to</strong>cetraric)...............................................................B. subinflata<br />

Bunodophoron Key:<br />

1a. Thallus hollow ...................................................................................... B. diplotypus<br />

1b. Thallus solid............................................................................................................. 2<br />

2a. Branched thin, less than 2 mm wide .........................................................B. murrayi<br />

2b. Branches thick, more than 2 mm wide............................................... B. patagonicus<br />

Canoparmelia Key:<br />

1a. Thallus isidiate........................................................................................ C. adspersa<br />

1b. Thallus sorediate .........................................................................................C. texana<br />

Cetraria Key:<br />

1a. Thallus broad; lobes usually over 2 mm wide ........................................C. isl<strong>and</strong>ica<br />

1b. Thallus narrow; lobes usually under 2 mm wide................................... C. nigricans<br />

Cetrelia Key:<br />

1a. With (mostly marginal) soredia; medulla UV+ or UV-........................................... 2<br />

1b. With (mostly marginal) isidia or lobuli; medulla UV+ white.................................. 3<br />

2a. Medulla C+ red, UV- (olive<strong>to</strong>ric acid) ................................................ C. olive<strong>to</strong>rum<br />

2b. Medulla C-, KC+ reddish, UV+ white (alec<strong>to</strong>ronic acid).........................C. chicitae<br />

3a. With (usually short) isidia (alec<strong>to</strong>ronic acid)...................................... C. braunsiana<br />

3b. With marginal lobules (microphyllinic acid)...........................................C. japonica<br />

Cladonia Key (after Stenroos, S. 1986. The family Cladoniaceae in Melanesia. 2. Cladonia<br />

section Cocciferae. Annales Botanici Fennici 23: 239-250. <strong>and</strong> Stenroos, S. 1988a. The<br />

family Cladoniaceae in Melanesia. 3. Cladonia sections Helopodium, Perviae <strong>and</strong><br />

Cladonia. Annales Botanici Fennici 25: 117-148.):<br />

1a. Thallus without squamules ...................................................................................... 2<br />

1b. At least some squamules present ............................................................................. 3<br />

2a. Thallus inflated, little branched ...............................................................C. papuana<br />

2b. Thallus not inflated, densely (at least 5 times) branched.......................... C. confusa<br />

3a. Podetial axils, scyphi <strong>and</strong> <strong>of</strong>ten tips open................................................................ 4<br />

3b. Podetial axils, scyphi <strong>and</strong> tips closed....................................................................... 7<br />

4a. Podetia richly branched; contains fumarpro<strong>to</strong>cetraric acid (PD+ red) .................... 5

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