Helotiales » Helotiales genera incertae sedis » Apiculospora

Apiculospora spartii

Apiculospora spartii Wijayaw., W.J. Li, Camporesi, A.J.L. Phillips & K.D. Hyde, in Wijayawardene et al., Fungal Diversity: 10.1007/s13225-016-0360-2, [44] (2016)

Index Fungorum number: IF 551762; Facesofungi number: FoF 01426

Etymology: Named after the host genus.

Holotype: MFLU 15-3556.

Saprobic on dead branches of Spartium junceum. Sexual morph: Undetermined. Asexual morph: Conidiomata 160–220 μm diam., 120–140 μm high, pycnidial, immersed, semi-erumpent at maturity, solitary, scattered, unilocular, globose, black. Conidiomata outer wall 10–15 μm, composed of thin-walled, brown cells of textura angularis; inner wall thin, almost reduced to conidiogenesis region. Conidiophores reduced to conidiogenous cells. Conidiogenous cells 5–8 × 2–4 μm, subcylindrical to ovoid, enteroblastic, phialidic with percurrent proliferation, discrete, indeterminate, hyaline, smooth. Conidia 17–25 × 8–11 μm (x̄ = 21.3 × 9.5 μm, n = 20), ellipsoid to sub-cylindrical, straight to slightly curved, base truncate, apex with apiculus, 1-septate, sometimes constricted at septum, pale brown to dark brown, guttulate, thick-walled, verruculose.

Culture characteristics: Colonies on PDA slow growing, reaching 10mm diam., after one week, circular, whitened, spreading, flattened, felt-like, sparse, aerial, surface, smooth with crenate edge, filamentous; reverse yellowish in the central zone, whitened at the edge.

Material examined: Italy, Forlì-Cesena [FC] Province, Castello di Corniolino - Santa Sofia, dead branch of Spartium junceum (Leguminosae), 25 October 2012, Erio Camporesi , IT 844 (MFLU 15-3556, holotype); (HKAS92537, isotype), ex-type living cultures MFLUCC 13-0400, ibid. IT844.


Notes: As far as we know, our taxon is morphologically distinct from other taxa recorded from Spartium spp. (Sutton 1980, Ellis and Ellis 1985, Nag Raj 1993, Farr and Rossman 2016). Hence, we introduced it as a new species (Wijayawardene et al. 2016).