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Lichens A-Pac (2007) - Flora of New Zealand Lichens - Revised Second Edition A-Pac
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Brigantiaea Trevis.

BRIGANTIAEA Trevis., 1853

=MYXODICTYON A.Massal. 1860 

Type : Brigantiaea mariae Trevis.

Type : Myxodictyon chrysostictum (Hook.f. & Taylor) A.Massal.  Brigantiaea chrysosticta (Hook.f. & Taylor) Hafellner & Bellem.]

Description : Flora (1985: 40). See also Hafellner (1997: 40).

Key

1
Apothecial margins concolorous with disc, not with thallus
2
Apothecial margins concolorous with thallus
chrysosticta
2
Thallus smooth or somewhat uneven-verrucose, never lobulate
3
Thallus with numerous small, suberect, ascending lobules
lobulata
3
Terricolous, on mosses or detritus, alpine-subalpine; apothecia mustard-yellow to matt orange, often subpedicellate, to 4 mm diam.; hypothecium colourless
fuscolutea
Corticolous; apothecia rust-brown or blackish, rusty-brown-pruinose, sessile, constricted at base, to 2.5 mm diam.; hypothecium brown
phaeomma

Brigantiaea is a genus of 15 species found in both Northern and Southern hemispheres with the major region of diversity the circum-Pacific area where more than 50% of known taxa occur (Hafellner 1997). Distinguishing characters for the genus are the ascus type (Brigantiaea -type); the single muriform ascospores; the occurrence of anthraquinones in the apothecia but not in the thallus, in which atranorin is a constant lichen compound. Brigantiaea is included in the family Brigantiaceae (Hafellner & Bellemère 1982; Eriksson et al. 2004; Pennycook & Galloway 2004; Eriksson 2005), a family of unclear relationships in the order Lecanorales. Four species are recorded from New Zealand (Hafellner 1985b, 1997).

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