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Hypotrachyna neodissecta (Hale) Hale

Data Set Maintenance: Data set standard item. Data set author(s): Nash T.H. (00-02-04). Data set reviewer(s): Nash T.H.

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

Type Information: Type: Parmelia neodissecta Hale.

Taxonomic Literature: Hale 1971 & 1975.

Biogeography: Pantropical and neotropical; montane. Continent: Africa, Northern America, Southern America, and Asia-Tropical. Checklist records: Mexico, Sonoran Desert, and Venezuela.

Ecology: Biotroph; lichenized; corticolous.

Thallus: Foliose, subdivided into main parts, and secondary or without secondary parts, isotomic-dichotomous or sub irregular, continuous throughout, lobed; lobes elongate, horizontal; subconvex; branches applanate (moderately flattened); bifacial; not segmented; separate thallus parts 1-2-3 mm wide. Thallus Size and Differentiation: 3-5-7 cm in diameter; main branches basally not constricted; apex rounded. Upper Surface: Grey, plane or subconvex, glossy (shiny), smooth; not fissurate; not foveate; not convoluted; immaculate; epruinose; not pseudocyphellate; not wrinkled; eciliate; without hairs; isidiate; isidia central or laminal, cylindrical; without isidiomorphs; not papillate, not pustulate; not sorediate; 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 moderately abundant, black, branched, dichotomously branched; not tuberculate.

Hydrochasic Thallus Movement: Not performing hygrochasic thallus movement.

Upper Cortex: Double-layered.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming all across the thallus surface, sparse, 2-2.5-3 mm in diam.. Margin: Crenulate, epruinose; not sorediate; isidiate; without pseudocyphellae pseudocyphellae; not ciliate; not hirsute. Disk: Brown.

Asci: Dehiscence lecanoralean.

Ascospores: c. 8 per ascus.

Secondary Metabolites: Present; throughout the cortex or throughout the thallus medulla, atranorin or gyrophoric acid.

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

(report generated 04.Okt.2007)


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