Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Dothideales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Glonium curtisii

Glonium curtisii (Duby) Lohman, Bull. Torrey Bot. Club 64:66. 1937.

Basionym: Hysterium curtisii Duby, Mem. Soc. Phys. Hist. Nat. Geneve 16:30. 1862.

 Description: Ascomata aggregated or dispersed, 0.5-0.8 mm long, erumpent, becoming superficial, with immersed and flattened base, oval or ellipsoid, opening by a longitudinal slit, 167-273 μm high, 214-282 μm wide. Peridium 47-82 μm wide at sides, carbonaceous, brittle, becoming thin or absent at ascomatal base, composed of black or dark brown, polygonal cells. Pseudoparaphyses numerous, filiform, branched, anastomosing above asci, 0.8-1.6 μm wide, thickened at apex, with short stipitate, 8-spored. Ascospores 35-39 × 8.7-10 μm, oblong to cylindrical, straight or slightly curved, hyaline at first then becoming pale brown to dark brown, biseriate inside ascus, 2-celled, with a septum below the middle, the upper bigger cell, 19-21 × 8.7-10 μm, the lower smaller one, 12.6-19 × 7.9-10 μm, often with a guttule in each cell.

Taiwan, Nantou County, Kuantaochi, May, 1999, NCHUPP-2573.

 Habitat: On indet. dead wood.

Brazil, Taiwan, U. S. A.


Barr, ME. 1975; Wang, CL. 2000; Zogg, H. 1962.


W. H. Hsieh

 Note: Barr (1975) described the size of ascospores from the type specimen of Glonium curtisii as (45)62-82 × (10)12-15(-17) μm. However, Zogg (1962) reported a collection from Brazil as G. curtisii with somewhat smaller ascospores, (31-)35-45 (-53) × (8-)9-11(-13) μm. The size of ascospores in this specimen is 35-39 × 8.7-10 μm and is similar to G. curtisii.