Usnea arida Motyka
Details
Biostatus
Nomenclature
Motyka
Motyka
1937
492–493
ICN
Usnea arida Motyka
species
Usnea arida
Classification
Associations
Descriptions
Usnea arida Motyka
Thallus fruticose to subpendulous, spreading from base, 5-10 cm tall, green to yellowish-green, often brownish-red in parts, soft and flaccid when wet, irregularly subdichotomously branching, corticolous. Branches 0.5-2.5 mm thick, inflated, secondary branches numerous, often articulate-cracked at branch points, cortex glossy especially towards base, papillate, rarely with small, white, scattered, punctate pseudocyphellae, possibly formed through abrasion of papillae, sorediate, with many lateral fibrils, pseudoisidia and spinules, giving the plant a bristling appearance. Soredia discrete or crowded, often becoming pseudoisidiate, spinulose. Apothecia not seen. Chemistry: Salazinic, norstictic and usnic acids.
Taxonomic concepts
Collections
Metadata
223d83e2-ea3b-43b5-b5d7-58bb633f59a1
scientific name
Names_Plants
1 January 2000
24 March 2023