Pleosporales » Diademaceae » Diadema

Diadema tetramerum

Diadema tetramerum Shoemaker & C.E. Babc. [as 'tetramera'], Can. J. Bot. 67(5): 1354 (1989).

           Index Fungorum number: IF 136222; Facesoffungi number: FoF 08209, Fig. 1

Description: see Ariyawansa et al. (2014).

Material considered: see Ariyawansa et al. (2014).

Fig. 1 Diadema tetramerum (DAOM, holotype, modified from Fig. 2 in Ariyawansa et al. 2014). a Appearance of ascomata on host surface. b Section through ascomata. c Peridium. d Pseudoparaphyses. e Apical part of the asci. f, g Asci. h, i Ascospores. Scale bars: b = 100 μm, c = 10 μm, d, f, g = 50 μm, e, h, i = 30 μm.

Importance and distribution

Diadema comprises eight species known on Potentilla agrophylla (Rosaceae), Rosa moschata (Rosaceae), Sieversia turbinata (Rosaceae) and Trisetum spicatum (Poaceae). Diadema is distributed in Asia (India, Pakistan) and The United States (Utah).

 

References

Ariyawansa HA, Phookamsak R, Tibpromma S, Kang JC, Hyde KD. 2014 – A Molecular and Morphological Reassessment of Diademaceae. Scientific World Journal 8, 1–11.

Shoemaker RA, Babcock CE. 1989 – “Diadema,” Canadian Journal of Botany 67, 1349.

 

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