Stereocaulon corticatulum Nyl.
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Details
Stereocaulon corticatulum Nyl. (1859)
Stereocaulon corticatulum Nyl.
Biostatus
Nomenclature
Nyl.
Nyl.
1859
117
ICN
Stereocaulon corticatulum Nyl.
species
Stereocaulon corticatulum
Classification
Synonyms
Descriptions
Stereocaulon corticatulum Nyl.
Thallus rather small, to 2-3 cm tall, robust specimens to 6 cm tall, spreading, without a defined holdfast and often forming dense compact colonies amongst mosses or on small boulders and stones in damp places. Pseudopodetia smooth, rarely slightly furrowed, mostly ± terete or slightly flattened, becoming branched in upper parts, ± extensively corticate, cortex continuous or in flaky patches. Phyllocladia sparse and often poorly developed, ± indistinguishable from finer corticate pseudopodetial branches, or granular-papillate, spherical, rather variable in shape, sorediate. Soredia granular, white, present on most parts of the thallus, in part derived from the breakdown of phyllocladia. Cephalodia attached to main stems, sessile or shortly stalked, pale brownish- grey, rounded-globose at first, becoming scrobiculate-impressed, cortex smooth or slightly maculate. Apothecia rare, terminal, occasionally also lateral, to 1.5 mm diam., disc convex, brown or blackish-brown, immarginate. Hypothecium colourless. Ascospores acicular-fusiform, 3-septate, 35-50 × 2-3 µm. Chemistry: Atranorin, rangiformic and norrangiformic acids. Some specimens contain also perlatolic, glomelliferic and glomellic acids in place of rangiformic and norrangiformic acids.
Taxonomic concepts
Stereocaulon corticatulum Nyl.
Stereocaulon corticatulum Nyl.
Stereocaulon corticatulum Nyl.
Stereocaulon corticatulum var. complanatum I.M.Lamb
Stereocaulon corticatulum Nyl.
Stereocaulon corticatulum var. detergens (Nyl.) Müll.Arg.
Stereocaulon corticatulum Nyl.
Stereocaulon detergens Nyl.
Stereocaulon corticatulum Nyl.
Collections
Metadata
128cfc91-f4e7-42b1-8fa5-5d3a5ec6b43c
scientific name
Names_Plants
1 January 2000
14 September 2010