Bulbothrix isidiza (Nyl.) Hale

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

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Bulbothrix. Synonyms: (see Hale 1976); Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Type: Parmelia isidiza Nyl.

Taxonomic Literature: Nylander 1884 Hale 1976.

Biogeography: Pantropical; colline and submontane. Continent: Africa, Northern America, Southern America, Pacific, and Asia-Tropical. Checklist records: Japan, Mexico, and Sonoran Desert.

Ecology: Biotroph; lichenized; corticolous; substrate non-calciferous.

Thallus: Foliose, subdivided into main parts, and secondary or without secondary parts, sub irregular, continuous throughout, lobed; lobes elongate or sub linear, horizontal; plane; branches applanate (moderately flattened); bifacial; not segmented; separate thallus parts 1-2.5-4 mm wide. Thallus Size and Differentiation: 5-7.5-10 cm in diameter; main branches basally not constricted; apex rounded. Upper Surface: Grey, plane, matt, smooth; not fissurate; not foveate; not convoluted; without patches; not pseudocyphellate; not wrinkled; cilia marginal; without hairs; isidiate; isidia central or laminal, cylindrical, ramified, sometimes moderate; without isidiomorphs; not papillate, not pustulate; not sorediate; not tuberculate; not lobulate. Lower Surface: Present, brown or brownish yellow, brown in the centre, brown along the margin; attached by holdfasts; not cyphellate; not wrinkled; rhizinate; rhizines moderately abundant, extending all across the lower surface, brown, not branched; not tuberculate.

Hydrochasic Thallus Movement: Not performing hygrochasic thallus movement.

Upper Cortex: Double-layered.

Reproduction Strategy: Sometimes with sexual (and possible asexual) stages. Ascocarps: Apothecioid, forming all across the thallus surface, all across the surface, sparse, 1-2-3 mm in diam.. Margin: Crenulate (ecoronate), epruinose; not sorediate; isidiate; without pseudocyphellae pseudocyphellae; not ciliate; not hirsute. Disk: Brown.

Asci: Dehiscence lecanoralean.

Ascospores: c. 8 per ascus, broadly ellipsoid or ellipsoid, 7-10.5-14 µm long, 5-6.5-8 µm wide.

Conidiomata: Absent resp. not observed.

Secondary Metabolites: Present; only in the upper part of the cortex, throughout the cortex, or throughout the thallus medulla, atranorin, consalazinic acid, or salazinic acid, metabolite(s) of unresolved identity: absent.

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

(report generated 04.Okt.2007)