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Rinodina innata Sheard

Data Set Maintenance: Data set compiled (from Sheard manuscript submitted to The Bryologist (2002)). Data set author(s): Bungartz F. @EXCL@ Sheard J. (02-08-29). Data set not to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Currently accepted name Rinodina innata Sheard. Rinodina. Physciaceae Zahlbr. (1898); Lecanorineae; Lecanorales.

Type Information: Basionym: Rinodina innata Sheard. Type: Rinodina innata Sheard ined.; protologue: Species saxicola. Thallus cinereus ad fuscescens, sine substantis lichenum. Apothecia erumpentia, crypto-lecanorina, abundantia. Ascosporae typo Physciarum, 13.1-(16.6-17.6)-21.0, 17.1 x 8.9, 6.9 (8.7 -9.2) - 10.9 µm. parietibus et toris demum valde pigmentiferis, interdum tandem typo Physconarium. Distributo in regione Pacifica austro-occidentali maritima.; type specimen label data: U.S.A. California. Santa Barbara Co., Santa Cruz Island, 7 km SSE
Prisoner's Harbor along road to radar station, 335 m, 34.00.00N
119.40.30W, with R. gennarii Bagl., J.W. Sheard 5128a. Holotype -
ASU, isotype - GZU.

Taxonomic Literature: Bryologist 105: ? (2002).

Biogeography: Northern hemispheric (warm temperate); Mediterranean; coastal. Continent: Northern America. Checklist records: Mexico, Sonoran Desert, and United States and Canada (continental).

Ecology: Biotroph; lichenized; episubstratic; growing sun-exposed; under conditions which are dry; substrate non-calciferous or calciferous.

Thallus: Crustose (areolate, areoles to 0.60-1.00 mm wide), subdivided into main (areoles) parts, areolate (primarily areolate); lobes angular at the front; plane (or uneven); separate thallus parts.6-1 mm wide; thin. Thallus Outline: Orbicular; indistinct; soon disappearing. Upper Surface: Grey or grey-brown, matt; not isidate; not sorediate. Lower Surface: Attached by the whole lower surface.

Upper Cortex: Present.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, not emerging (margin sometimes indistinguishable from thallus), abundant, .35-.4 mm in diam.. Margin: Smooth, indistinct, 60-100 µm wide; without a thin rim between disk and thalline margin. Disk: Excavate (at first) to typically plane; black to brown. Exciple: White. Parathecium (proper excipulum): Broad (expanding to 10-30 µm above), up to 10 µm wide, white. Amphithecium (thalline excipulum): Present; 60-70 µm wide. Lower Amphithecium: Up to 80 µm high. Amphithecial Cortex: Outer cortical layer white; inner cortical layer white. Epithecium: Apical cells spathulate, brownish yellow to brownish red. Hymenium: 80-100 µm high; gelatinized; not inspers; iodine reaction: Lugol’s positive. Interascal Hyphae: Distinctly branched, not or scarcely anastomosed. Hypothecium: 50-90 µm high; white.

Asci: Clavate; 50-60 µm long, 16-18 µm wide; dehiscence lecanoralean.

Ascospores: Physcia-type or sometimes Physconia-type, c. 8 per ascus, spores 8 per ascus, ellipsoid, (13)-16.6-17.1-17.6-(21) µm long, (7)-8.7-8.9-9.2-(10.9) µm wide; septa present; transversally septate; 1-transversally septate; forming early during spore ontogeny (Physciaceae-type A); wall apically thickened, thickened at the septum, becoming pigmented, dark brown or middle brown, ornamented.

Conidiomata: Present.

Conidiophores: Vobis-type I. Conidia: Bacilliform; 3.5-4 µm long; 1 µm wide.

Secondary Metabolites: Not detected.

(report generated 13.Nov.2007)

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