Comprehensive Description
provided by Smithsonian Contributions to Botany
Hypotrachyna andensis
Thallus arcte adnatus vel adnatus, fragilis, 4–7 cm latus, viridi-flavicans, lobis sublinearibus, separatis, 1–3 mm latis; superne isidiatus, isidiis lobulatis; cortex superior 12μ–14μ crassus, stratum gonidiale 24μ–28μ crassum, medulla alba, 120μ–130μ crassa, cortex inferior 12μ–14μ crassus; subtus niger, dense rhizinosus. Apothecia substipitata, sporis simplicibus, 10μ × 14μ.
Thallus closely adnate on twigs or on soil, fragile, 4–7 cm broad, yellowish green; lobes sublinear, rather elongate, mostly separate, 1–3 mm wide; upper surface plane, continuous, becoming isidiate, the isidia at length lobulate, the lobules dorsiventral, about 0.5 mm long, often with short cilia; lower surface densely rhizinate, the rhizines moderately dichotomously branched. Apothecia substipitate, 1–3 mm in diameter; spores 10μ × 14μ.
CHEMISTRY.—Cortex K−, medulla K+ yellow turning red, C−, P+ orange (usnic acid, norstictic acid, and salazinic acid (holotype); or more rarely norstictic acid, stictic acid, and constictic acid).
TYPE COLLECTION.—San Martín, Peru, Holligan L 128 (BM, holotype).
DISTRIBUTION.—Central America, Colombia, Venezuela, and Peru.
HABITAT.—On branches of small shrubs in the paramo or on road banks at 2800–3700 m elevation.
- bibliographic citation
- Hale, Mason E., Jr. 1975. "A Revision of the Lichen Genus Hypotrachyna (Parmeliaceae) in Tropical America." Smithsonian Contributions to Botany. 1-73. https://doi.org/10.5479/si.0081024X.25
Hypotrachyna andensis: Brief Summary
provided by wikipedia EN
Hypotrachyna andensis is a species of foliose lichen in the family Parmeliaceae. It is known to occur in the Neotropics and in Papua New Guinea.
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