Phylum：Anamorphic fungi　>>　Class： Anamorphic fungi　>>　 Order： Anamorphic fungi 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Dictyosporium heptasporum
 
   
   
　Author：

Dictyosporium heptasporum (Garov.) Damon, Lloydia 15: 118. 1952.

Basionym: Cattanea heptaspora Garovaglio, Rc. Ist. Iomb. Sci. Lee., 2 Ser., 8:125. 1875.
   
 
 
 
 
　Description： Colonies diameter on V8 Juice Agar 50 mm in 90 days at 25°C, effuse, more or less floccose, granular, yellowish grey to brownish grey or olive brown (4B-F2-3); reverse greyish yellow to greyish orange (4-5B4-5). Mycelium partly superficial, partly immersed, composed of branched, septate, hyaline to pale brown, smooth to roughened, 1.6-3.3 μm wide hyphae. Conidiophores micronematous to macronematous, short, simple or irregularly branched, septate, often flexuous, hyaline to pale brown, smooth to rougened, 5.8-21.7 × 3.3-9.2 μm. Conidiogeous cells integrated or discrete, ellipsoidal, subglobose, globose or doliform, subhyaline to pale brown, smooth, or finely roughened. Conidia holoblastic, grey reddish brown to brown, corn-like, 35.8-58.3 × 15.8-23.3 μm, consisting of a triangular basal cell on which 6-7(10) vertical, slightly curved or flexuous rows are raided in different plantes; rows closely appressed or not, thick-walled, 4-9-euseptate, constricted at the sep-tate, occasionally with a globose, hyaline or subhyaline, thin-walled, appendage at the end cell.
 
 
 
 
 
　Specimens：

Taiwan, Taipei Pref., Wulai, on rotten stem, 23 Jul. 1990. leg. J.L. Chen. TNTU 861.
 
 
 
　Habitat： on rotten stem
 
 
 
　Distribution：

Taiwan, Cuba, India.
 
 
 
　References：

Chen, JL and Tzean, SS. 1999; Ellis, MB. 1971.
   
   
   
　Provided：

S. S. Tzean and J. L. Chen
 
 
　Note： D. heptasporum (Garov.) Damon is superficially similar to D. subramanianii Sutton, but the former species has considerably longer conidia. However, our collection is close to Matsushima’s collection (1980) in conidia, conidiophores and conidiogenesis. Rao & De Hoog (1986) described a much longer specimen (up to 90 μm long) of the D. heptasporum from rotten wood in India.