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Lichens A-Pac (2007) - Flora of New Zealand Lichens - Revised Second Edition A-Pac
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Megalospora Meyen

MEGALOSPORA Meyen, 1843

Type : Megalospora sulphurata Meyen

Description : Flora (1985: 265).

Key

1
Isidiate
bartlettii
Without isidia
2
2
Ascospores straight, 1 per ascus
3
Ascospores curved, 2–8 per ascus
7
3
Thallus yellowish, KC+ yellow, Pd−
4
Thallus whitish, KC−, Pd+ orange
5
4
Thallus of coarse, irregular granules, granules inflated, bursting to become sorediate; apothecial disc brown, margins pale-brown; exciple K+ yellow
disjuncta
Thallus thick, warted–papillate, not granular; apothecial disc dark reddish brown, margins dark-brown to black; exciple K+ red
atrorubicans ssp. australis
5
Ascospores transverse-septate only
6
Ascospores muriform
lopadioides
6
Orange-brown layer present below hymenium
gompholoma ssp. gompholoma
Dark-brown layer present below hymenium
gompholoma ssp. fuscolineata
7
Thallus yellowish, sorediate, KC+ yellow, Pd−
7
Thallus whitish, without soredia, KC−, Pd+ orange
campylospora
7
Thallus smooth
subtuberculosa
Thallus warted-papillate
knightii

Megalospora is a mainly tropical genus of c. 30 described corticolous species (Sipman 1983, 1986b; Kantvilas 1994d) accommodated in the family Megalosporaceae (Hafellner & Bellemère 1982; Eriksson et al. 2004; Pennycook & Galloway 2004; Eriksson 2005). Main areas of speciation are New Zealand, New Guinea and Australia. Nine taxa are known from New Zealand.

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