Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Diaporthales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Dictyoporthe cinnamomi

Dictyoporthe cinnamomi W. H. Hsieh et al., Mycol. Res. 101. 1092.

 Description: Ascomata perithecia, 750-1200 μm wide, 450-700 μm high including the oblique or more or less lateral, erumpent ostiolar beaks, immersed in the cortex in small groups. Ectostroma forming pustules below the converging ostiolar beaks. Ostiolar beaks 280-300 μm long, 150-200 μm wide, cylindrical. Peridium of venter 28-50 μm wide, composed of two layers, an outer layer of brown, rounded to somewhat compressed, pale brown to hyaline cells. Paraphyses 1.0-1.5 μm wide, hyaline, filiform, septate, unbranched. Asci 95-120 × 20-40 μm, broadly clavate, unitunicate, short-stalked, 8-spored, rarely 4-spored, without any apical rings. Ascospores 20-30 × 12-20 μm, globose to ovoid, hyaline, smooth, dictyoseptate with 4-9 transverse septa and 1-3 vertical septa in all cells but rarely in the end cells, overlapping biseriate in the ascus, lacking mucos sheaths or appendages.

Taiwan, Nantou County, Piluchi, 28 Apr. 1995, holotype IMI 371135 and isotype NCHUPP-2360.

 Habitat: On dead twigs of Cinnamomum sp.



Barr, ME. 1978; Müller, E. 1961.


W. H. Hsieh

 Note: Four species of Dictyoporthe Petr. are known (Barr, 1978. 1983; Müller, 1961).Of these, D. acerophila M. E. Barr and D. appendicular E. Müll. have ascospores with appendages and this character clearly separates them from D. cinnamomi. The other two species, D. ahmadii Petr. and D. canadensis (Ellis & Everh.) M. E. Barr, have ascospores lacking apical appendages as in D. cinnamomi but their ascospores are much narrower (not more than 12 μm wide) than D. cinnamomi.