Department of Botany,
Bharathiar University, Coimbatore - 641 046
Parmotrema andinum (Müll.Arg.) Hale
Family :
Parmeliaceae
Hale, Phytologia 28: 334. 1974
Basionym: Parmelia andina Müller Argoviensis, Revue Mycol. 1: 169. 1879
ID :
BU/BRL/2022/024
Thallus :
Foliose, loosely attached to the substratum, 4.5-13 cm across
Lobes :
Lobes ascending, rotund, up to 5-10 mm wide, 120-180 µm thick; margin crenate, eciliate
Upper Side:
Ashy white to grey, smooth, maculate
Isidia :
without Isidia, Soredia and Pustules
Lower Side :
Black, slightly wrinkled, with 3-5 mm wide, erhizinate marginal zone. Rhizines in the center, simple, short up to 1mm long
Medulla :
White, 100-120 μm thick
Rare, stipitate, up to 10mm in diameter, disc brown, amphithecium rugose, maculate, epithecium brown, 15-20 μm thick; hymenium 55-65 μm high. Asci clavate, 8-spored, 30-45 x 19 μm
Apothecia :
Spores colourless, simple, ellipsoid, 14-22 x 7-10 μm. Pycnidia laminal, towards apices, black. Conidia filiform, 10-15 μm. long
Ascospores :
Cortex K+ yellow: medulla K-, C+ red, KC + red, P- TLC: Lecanoric acid present.
Chemistry :
