Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Dothideales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Kalmusia clivensis

Kalmusia clivensis (Berk. & Br.) Barr., Mycotaxon 29: 504. 1987.

Basionym: Sphaeria (Caulicolae) clivensis M. J. Berkeley & C. E. Broome, Annals and Mag. Nat. Hist., Ser. 2, 9: 379. 1852.

 Description: Ascomata scattered, immersed, 340-360 μm wide, 400-480 μm high including surface, ostiolar canal lined with periphyses and filled with pseudoparaphyses extending from below. Peridium 10-20 μm thick, composed of 6-8 layers of pale brown, strongly compressed cells. Asci clavate, 120-160 × 18-20 μm, 8 or occasionally 6-spored, short-stl-alked, stalk up to 30 μm long. Pseudoparaphyses branched, 2-3 μm wide. Ascospores broadly fusiform, 28-32 × 8-11 μm, rounded or slightly constricted at septa, inconspicuous verrucose, exhibiting irregular clefts after pressure is exerted on the mounted cover slip, dark brown, 4-guttuolate, biseriate in the upper part of ascus and becoming uniseriate below, or obliquely uniseriate.

Taiwan, Yilan County, Shuangliepi, 20 April, 2003, NCHUPP-c1031.

 Habitat: On Bidens sp.

England, Noth America, Taiwan.


Chen, CY. and Hsieh, WH. 2003; Huhndorf, S. M.


W. H. Hsieh

 Note: The morphology of ascospores recalls Leptosphaeria at first sight. However, Kalmusia can be separated from Leptosphaeria by the lack of sclerotial cell wall structure, and by the possession of strongly compressed cells in peridium. The irregular clefts on asco-spore are indicative of this species.