Usnea torulosa (Müll.Arg.) Zahlbr.
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Usnea torulosa (Müll.Arg.) Zahlbr. (1930)
Usnea torulosa (Müll.Arg.) Zahlbr.
Biostatus
Nomenclature
(Müll.Arg.) Zahlbr.
Müll.Arg.
Zahlbr.
1930
594
ICN
species
Usnea torulosa
Classification
Subordinates
Synonyms
Descriptions
Usnea torulosa (Müll.Arg.) Zahlbr.
Thallus fruticose, erect or partly decumbent, branches short, stiff, to 5 cm tall, pale greenish-yellow or pale yellow or yellowish-white blackened at base, crowded and convergent at base. Branches uniform, mostly simple, straight or rarely curved, 1-1.5 mm thick, thinner at apices, cortex glossy, waxy, annulate- cracked or fissured in parts, occasionally slightly faveolate, with small, round to irregular, punctate to spreading pseudocyphellae which become granular- sorediate. Soredia granular in convex masses, yellowish or blackened. Apothecia not seen. Chemistry: Three distinct chemodemes are found in this species; (i): Psoromic, conpsoromic, ± squamatic and usnic acids. (ii): Squamatic and usnic acids (type has this chemistry). (iii): Barbatic 4-O-demethylbarbatic, squamatic (UV+ white) and usnic acids (type of has this chemistry).
Taxonomic concepts
Usnea aurescens Motyka
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea dasypogoides var. torulosa Müll.Arg.
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea glomerata Motyka
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea torulosa (Müll.Arg.) Zahlbr.
Usnea torulosa var. aurescens (Motyka) G.N.Stevens
Usnea torulosa (Müll.Arg.) Zahlbr.
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Metadata
46c41243-bfb7-4517-ad9b-02cea5b7e820
scientific name
Names_Plants
1 January 2000
15 February 2016