taxonID	type	description	language	source
6E00B52EFFA7214BFF53F886FACA6851.taxon	description	Description: Sexual morph not observed. Colony diam., 7 d, in mm (average): PDA: 5 ˚ C (2), 10 ˚ C (8), 15 ˚ C (11), 20 ˚ C (26), 25 ˚ C (31), 30 ˚ C (31), and 35 ˚ C (no growth); MEA: 25 ˚ C (34). Colonies on PDA at 25 ˚ C, matted felt at center, indistinctly zonate, with undulate margins, irregularly oriented and coarsely undulated, producing radially oriented fan-shaped structures from the center to margin, amber with white margin and reverse sienna with white margin. Colonies on MEA at 25 ° C, matted felt at center, indistinctly zonate, with undulate margins, irregularly oriented and coarsely undulate, producing radially oriented fan-shaped structures from center to margin, white with ochreous margin, and reverse umber with fulvous margin. On PDA: hyphae 1.4 ‒ 6.3 µm wide, hyaline, smooth, thin-walled, branched and septate. Conidiophores 167.7 ‒ 798.4 µm (mean 451.0 µm, n = 50) long, 3.7 ‒ 8.5 µm (mean 6.1 µm, n = 50) wide at the basal cell, generally macronematous, mononematous, erect, septate, smooth thin-walled, hyaline, bearing short branches with 1 – 2 whorls of 2 – 5 phialides, or phialides formed in verticils on long main stalk. Phialides 6.2 ‒ 16.9 × 1.2 ‒ 2.4 (mean 10.4 × 1.7 µm, L / W 6.2, n = 50), typically slender flask-shaped, hyaline and smooth-walled. Conidia 4.7 ‒ 10.9 × 1.8 ‒ 3.2 µm (mean 6.2 × 2.5 µm, L / W 2.5, n = 50), generally fusiform to ellipsoidal, hyaline, smooth and thin-walled, aseptate and produced in imbricate chains. Chlamydospores 7.2 ‒ 22.2 × 4.6 ‒ 12.3 µm (mean 10.8 × 6.2 µm, L / W 1.7, n = 50), intercalary or terminal, produced singly or in short chains, globose to sub-globose, hyaline and thick-walled. Etymology: The epithet “ imbricata ” refers to the irregularly oriented and coarsely undulate morphology from the center to margins of colonies grown on PDA and MEA. Type: Sugadaira, Nagano, Japan, 2008, isolated from the decayed needles of Pinus densiflora (Holotype, TNS-F- 91410, dried culture on PDA; ex-type culture, NBRC 33105). Notes: Mariannaea imbricata is morphologically similar to M. atlantica, M. fusiformis, M. punicea, and M. terricola, but can be distinguished from these congeners by its slender flask-shaped phialides with a smooth-walled texture. The colonies are characterized by an amber to white pigmentation on PDA and a central matted felt texture, and with the center to margins irregularly oriented and coarsely undulate on PDA and MEA. This species does not form reddish-purple colonies. Phylogenetic analysis based on ITS and TUB- 2 sequences can also be used to distinguish these species.	en	Watanabe, Kohei, Hirose, Dai (2021): A novel Mariannaea species isolated from decayed pine needles in Japan. Phytotaxa 522 (3): 211-220, DOI: 10.11646/phytotaxa.522.3.4, URL: http://dx.doi.org/10.11646/phytotaxa.522.3.4
