Search on : Taxa descriptions


 Add this item to the list  822647 Original description
Remarks (public):Habitat. Decorticated, well-decayed wood of Freycinetia, Fuchsia, Nothofagus, and Podocarpus in mixed native forest.
Distribution. Known only from the North and South Islands of New Zealand.
Description type:Original description 
Description:Ascomata ampulliform to ovoid, papillate, 400–500 µm diam, 500–600 µm high, numerous, scattered to gregarious, superficial; young ascomata tomentose, white, tomentum becoming tightly appressed, crust-like and cream to waxy and brownish-gray with age, occasionally areolate, finally tomentum wearing away and ascomata becoming black and glabrous; neck conical, glabrous, black. Ascomatal wall of textura angularis in surface view, in longitudinal section 3-layered, 36–90 µm thick, inner layer pseudoparenchymatous, 7–24 µm thick, composed of 4–6 layers of elongate, flattened, hyaline to pale brown cells, middle layer pseudoparenchymatous, 12–34 µm thick, composed of 5–8 layers of polygonal to angular, pale brown cells, outer layer prosenchymatous, 17–32 µm thick, composed of several to few layers of hyphae depending on age of ascomata, hyphae 1–3 µm wide, hyaline to pale brown, septate, thin-walled. Ascomatal apex with periphyses. Centrum with yellow pigments that quickly diffuse in water. Paraphyses filiform, 2–5 µm wide, longer than asci, hyaline, numerous, septate, unbranched, persistent. Asci cylindrical, 160–230 × 14–20 µm, stipitate, stipe 27–80 (–120) × 4–5.5 µm, numerous, unitunicate, thin-walled, apex truncate; ring narrow, shallow, refractive; subapical globule typically absent, with 8, biseriate to triseriate ascospores. Ascospores short cylindrical, ends rounded, 32–45 (–50) × 5–7.5 (–10) µm [39.5 ± 4.0 × 6.0 ± 0.5], allantoid to occasionally geniculate, usually aseptate, becoming up to 7-septate with age, hyaline to yellowish, occasionally containing globose, refractive oil droplets, appendages absent, occasionally producing phialides directly from the ascospores. Culture characteristics — Colonies (of holotype and paratypes) moderately slow-growing on all media, covering the WA, CMA, and PDA plates in 28 d, silky and hyaline on WA and CMA, felty and white (5A1-5A2) on PDA; margin even, appressed, hyaline on all media; reverse same as the mat. Asexual morph: Hyphae largely undifferentiated, 1–4 µm wide, thin-walled, hyaline. Conidiogenous cells phialides, abundantly produced from hyphae as single terminal phialides on WA and CMA, not seen on PDA, delimited by a basal septum, monophialidic, cylindrical to lageniform, 8–15 × 1.5–5 µm at widest part, hyaline; collarette absent. Conidia pyriform to obclavate, truncate at base, 2.5–5.5 × 2–3 µm, hyaline. 
Taxon name: