Chaetothyriales » Herpotrichiellaceae » Capronia

Capronia camelliae-yunnanensis

Capronia camelliae-yunnanensis M. Raza, Z.F. Zhang & L. Cai, in Phookamsak et al., Fungal Diversity: 10.1007/s13225-019-00421-w, [93] (2019)

Index Fungorum number: IF555356         Facesoffungi number: FoF04884

 

Sexual morph: Ascomata 175–200 μm high, 215–220 µm diam., scattered or clustered, solitary, superficial on decorticated bark of host, with papilla, globose to subglobose, lodged on a basal subiculum, which form loose hyphae penetrating the underlying cells, setose around the surface of the wall, setae up to 30 μm long. Peridium 20–30 μm wide, thickwalled, of equal thickness, composed of several layers of small, pseudoparenchymatous cells, inner layers comprising hyaline cells, arranged in a textura angularis, outer layers comprising brown to dark brown becoming blackened cells of textura prismatica. Hamathecium composed of dense, 3–5 μm wide, broad, filamentous paraphyses with indistinct septate, not constricted at the septa, embedded in a gelatinous matrix. Asci (51–)57–78(–80) × (5–)6–10(–12) μm (x̄ = 67.8 × 8.7 μm, n = 40), 8-spored, bitunicate, fissitunicate, broadly cylindrical, short pedicellate with knob-like pedicel, apically broad rounded, with a blunt ocular chamber. Ascospores (10–)13–17(–19) × (2–)3–5 lm (x̄ = 15.1 9 4.5 μm, n = 40), overlapping 1–3-seriate, hyaline and aseptate when young, becoming light brown to yellowish, ellipsoidal to fusiform, muriform, with 3–7 transverse septa and 1–3 longitudinal septa, slightly constricted at the septa, smooth-walled. Asexual morph: Undetermined.

Culture characteristics: Colonies on PDA reaching 15–20 mm diam. after 5 weeks at 25 ± 2 °C, colonies circular, umbonate, smooth to woolly with entire edge, velvety, smooth at the margin; from above, light green at the fruiting zone, whitish green at the productive zone and ageing zone; from below, light green at the fruiting zone, dark green to blackish at the productive zone, grey at the ageing zone; not producing pigmentation in PDA.

Material examined: CHINA, Yunnan Province, Baoshan City, Longling County, on decorticated bark of Camellia yunnanensis Cohen Stuart (Theaceae), October 2015, M. Raza, HMAS 255435 holotype), ex-type living culture, CGMCC3.19061.

GenBank Accession No: ITS = MH807377, LSU = MH807378, SSU = MH807379.

Notes: Capronia camelliae-yunnanensis forms a well supported clade, sister to C. pilosella (P. Karst.) E. Mu¨ll. et al. (100% ML and 1.00 BYPP). Capronia camelliae-yunnanensis differs from C. pilosella in the shape and size of the ascospores (C. camelliae-yunnanensis, (10–)13–17(–19) × (2–)3–5 lm versus 12–14 9 4–4.5 µm, C. pilosella; Karsten 1873). Capronia pilosella has hragmosporous, fusoid to clavate-fusoid, 3-septate ascospores (Karsten 1873; Mu¨ller et al. 1987), while C. camelliaeyunnanensis has muriform, ellipsoidal to fusiform, ascospores with 3–7 transverse septa and 1–3 longitudinal septa.

Figure 3. Capronia camelliae-yunnanensis (HMAS 255435, holotype). a Blackish ascomata on decorticated bark of Camellia yunnanensis. b Vertical section of ascoma. c Peridial structure. d Paraphyses. e–h Asci. i Asci stained with Melzer’s reagent. j Apical ring stained with Melzer’s reagent. k, l Immature ascospores. m, n Mature ascospores. o Germinated ascospore. p, q Culture characteristics on PDA (p = from above, q = from below). Scale bars b = 50 µm, c, d = 20 µm, e–i = 10 µm, o = 5, j–n = 2 µm

 

Reference:

 

Phookamsak R, Hyde KD, Jeewon R, Bhat DJ (2019) Fungal diversity notes 929–1035: taxonomic and phylogenetic contributions on genera and species of fungi. Fungal Diversity 95:1–273.

 

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