Hypogymnia mundata
Synonyms
Parmelia mundata Nyl.
Family
Parmeliaceae
Flora category
Lichen – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Lichens - Foliose
Current conservation status
2018 | Not Threatened | Qualifiers: SO
Brief description
Characterised by the corticolous habit; the loosely branched, extended, strap-like lobes, lacking lateral contacts; and the mostly solid medulla.
Distribution
South Island: Nelson (Pelorus Bridge), Westland (Runanga), Marlborough (Wairau Valley), Canterbury (Hanmer, Omihi), Otago (Kidd’s Bush Lake Hawea, Earnslaw Burn, near Kinloch, Mt Cargill Dunedin, Rongahere Gorge), Southland (Eglinton Valley, Alton Valley near Tuatapere, Manapouri, Lake Monowai, near Invercargill).
Known also from Australia, Argentina, Chile and Oregon.
Habitat
On twigs and bark of Betula pendula*, Leucopogon fasciculatus, Leptospermum scoparium agg., Fuscospora fusca and Pinus nigra*.
Detailed description
Thallus forming orbicular patches, to 12 cm diam., but generally smaller, corticolous or lignicolous. Lobes ± flattened, repeatedly dichotomously branched, outer lobes free and without lateral contacts, varying from 3-4 mm wide in older parts to 1 mm near apices. Upper surface grey to yellowish-grey, consistently and extensively deeply wrinkled, pycnidia common, appearing as black dots, particularly near apices. Medulla solid for most part, white. Lower surface black, fading to pale brown or whitish near apices, strongly wrinkled. Apothecia common, subpedicellate to pedicellate, exciple thick, wrinkled, funnel-shaped, disc pale brown to brown, 5-10(-18) mm diam., concave at first, becoming ± flat or convex with age, margins entire at first, then crenate. Ascospores ellipsoid 6-8 × 4.5-5 µm.
Chemistry: Cortex K+ yellow; Medulla K− or weakly + yellow, C−, KC+ reddish, Pd−; containing atranorin, chloroatranorin, physodic acid, oxyphysodic acid, 2’-O-methylphysodic acid (minor) and alectoronic acid (tr.).
Similar taxa
Similar to Hypogymnia billardierei but with dichotomously divided lobes without extensive lateral contacts.
Substrate
Corticolous
Attribution
Fact sheet prepared by Marley Ford (1 October 2022). Brief description, Distribution, Habitat, and Features sections copied from Galloway (1985) & Galloway (2007).
References and further reading
Galloway D.J. 1985: Flora of New Zealand: Lichens. Wellington: PD Hasselberg, Government Printer. 662 pp.
Galloway D.J. 2007: Flora of New Zealand: Lichens, including lichen-forming and lichenicolous fungi. 2nd edition. Lincoln, Manaaki Whenua Press. 2261 pp.