Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Dothideales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Splanchnonema verruculospora

Splanchnonema verruculospora W. H. Hsieh et al., Mycol. Res. 101: 1095-1096. 1997.

 Description: Ascomata pseudothecia, 225-270 μm wide, 300-360 μm high, immersed in the cortex, solitary to rarely aggregated, subglobose, with a papillate apical ostiole 85-110 μm wide piercing the host surface. Peridium 15-20 μm wide, composed of dark brown, thick-walled, pseudoparenchymatous cells towards the outside and pale brown, compressed cells towards the inside forming a textura angularis. Pseudoparaphyses 1.5-4.0 μm wide, filiform, hyaline, septate, branched. Asci 140-175 × 9-25 μm, broadly cylindrical, bitunicate, short-stalked, 8-spored. Ascospores 25-34 × 10-14 μm, ellipsoid to obovoid, brown to dark brown, often unequally 1-septate with a broader upper cell and a narrower but slightly longer lower cell, sometimes septate in the middle, not or slightly constricted at the septum, distinctly verruculosa, surrounded by a mucilaginous sheath when young, ends acute or obtuse, overlapping biseriate above and uniseriate below inside the ascus.

Taiwan, Nantou County, Piluchi, 5 Dec. 1994, holotype IMI(371132) and isotype NCHUPP-2326.

 Habitat: Saprobic on the twigs of Cinnamomus. sp.



Barr, ME. 1992; Shoemaker, RA. and Claire, ML. 1975.


W. H. Hsieh

 Note: Amongst the recognized species of Splanchnonema Corda, only four have 1-septate ascospores (Shoemaker & Le Clair, 1975; Barr, 1982). Of these, only S. horizontale M. E. Barr (1933) has smooth to finely verruculose ascospores and in the other three species the ascospores are either foveolate or smooth or much larger. The ascospores are 33.0-37.5 × 10-12 μm in S. horizontale and are very close in size to S. verruculospora but this species is easily separable by its characteristic horizontal ascomata.