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Hypotrachyna croeceopustulata (Kurok.) Hale

Data Set Maintenance: Data set standard item. Data set author(s): Nash T.H. (00-01-31). Data set reviewer(s): Nash T.H.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Hypotrachyna. Synonyms: Parmelia croceopustulata Kurok.; Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Type: Parmelia croceopustulata Kurok.

Taxonomic Literature: Hale 1975 Hale & Kurokawa 1964.

Biogeography: Neotropical; montane and upper montane. Continent: Northern America and Southern America. Checklist records: Mexico, Sonoran Desert, and Venezuela.

Ecology: Biotroph; lichenized; corticolous.

Thallus: Foliose, without secondary parts, dispersed throughout and distinctly seperate, lobed; lobes horizontal; rounded at the front; plane; branches applanate (moderately flattened); bifacial; separate thallus parts 1-1.5-2 mm wide. Thallus Size and Differentiation: 2-5-8 cm in diameter; main branches basally not constricted; apex rounded. Upper Surface: Grey, plane or subconvex, glossy (shiny), smooth; not fissurate; fissures without extrusions; not foveate; not convoluted; immaculate; without patches; epruinose; not pseudocyphellate; not wrinkled; eciliate; without hairs; not isidate; without isidiomorphs; not papillate, pustulate, pustules regular; sorediate; soralia grey, laminal, erupting from pustules, erose, fully excavated, isolated, not confluent with other soralia; not tuberculate; not lobulate. Lower Surface: Present, black, black in the centre, brown along the margin; attached by holdfasts; not cyphellate; not wrinkled; rhizinate; rhizines sparse, black, branched, dichotomously branched; not tuberculate.

Hydrochasic Thallus Movement: Not performing hygrochasic thallus movement.

Upper Cortex: Double-layered. Photobiont Layer: Photobiont cells continuous. Medulla: Single-layered.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming all across the thallus surface, all across the surface, sparse. Margin: Smooth, epruinose; not sorediate; not isidiate; without pseudocyphellae pseudocyphellae; not hirsute. Disk: Brown.

Secondary Metabolites: Present; protocetraric acid and skyrin, metabolite(s) of unresolved identity: absent.

Spot Tests: Cortex: KC + deep yellow; medulla: K –, C –, KC –, PD + red.

(report generated 04.Okt.2007)

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