Paradictyoarthrinium diffractum Matsush., Matsush. Mycol. Mem. 9:18 (1996). Index Fungorum number: IF415849

Conidiogenous cells blastic, integrated, terminal, determinate. Conidia (8–)9–11(−14) × (6.5–)8.5–19.5(−13) (x = 10 × 9μm n = 20), muriform, initially globose to subglobose, becoming ellipsoidal to irregular shape, brown to black, solitary or developing in branched chains, with 1– 2 short chains, verrucose, very variable in size and shape; circular to irregular with a protruding basal cell; rounded to truncate at the base.

Habitat: Known to inhabit dead twig in strea (Matsushima 1996), dead decaying spathe of Cocos nucifera (Prabhugaonkar and Bhat 2011) and dead stumps and stems of T.grandis (current study).

Known distribution: South Africa (Matsushima 1996), India (Prabhugaonkar and Bhat 2011), and Thailand (currentstudy).

Material examined: THAILAND, Chiang Rai Province, Mae Suai District, on dead stumps of T. grandis, 18 August 2012, M. Doilom, living culture MFLUCC 12–0557, MKT 073, GenBank Accession No: ITS: KP744454, LSU: KP744497, Chiang Rai Province, Mae Chan District, on dead stems of T. grandis, 2 December 2012, M. Doilom, MFLU 14–0631, living culture MFLUCC 13–0466, MKT 109/1, MUCL, GenBank Accession No: ITS: KP744455, LSU: KP744498, SSU: KP753960.

Notes: Phylogenetic analyses of P. diffractum were provided in Liu et al. (2015). Paradictyoarthrinium diffractum is described and illustrated here as it was collected from a different host with the type being collected from a dead decaying spathe of Cocos nucifera. This species has not been illustrated on teak before, and the details including sequence data will be useful for others studying microfungi associated with teak.

FIG Paradictyoarthrinium diffractum (MFLU 14–0631). a Colonies on host surface. b–i Conidia. j Germinated conidium. k Colony on MEA after 7 days (above and below views). l–s Conidia with conidiophores on MEA. Notes: q–s Micrograph from Scanning Electron Microscope (SEM). Scale bars: b–e = 5 μm, f–j, l–p, r, s = 10 μm, q = 30 μm