Freshwater Ascomycetes - Species Monograph
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| Genus |
Species |
Author |
| Ascotaiwania |
sawada |
H. S. Chang & S.-Y Hsieh. |
| Class |
Order |
Family |
| Sordariomycetes |
Xylariales |
Amphisphaeriaceae |
|
| Synonymy: |
|
Description
|
| Habit: |
Saprobic on submerged wood. |
|
| Ascomata: |
Ascomata 240-300 µm high, 200-240 µm (n=4) in diam., semi-immersed or superficial, globose, brown to dark brown, ostiolate, periphysate, solitary. |
|
| Peridium: |
Peridium thick-walled, brown, pseudoparenchymatous cells on the outer layers and compressed. |
|
| Beak: |
None |
|
| Hamathecium: |
Paraphyses hyaline, septate, filiform, simple to rarely branched, up to 3.8 µm wide. |
|
| Ascus: |
145-185 x 12.5-17.5 (n=14), cylindrical, 8-spored, short pedicellate, unitunicate with a distinct, wedge-shaped, non-amyloid apical ring. |
|
| Ascospore: |
25-30 x 7.5-10 (n=33), uniseriate to overlapping biseriate in the ascus, fusoid, 3-septate, not constricted (occasionally slightly constricted), straight to somewhat curved, smooth, central cells brown, end cells hyaline to pale brown. |
|
| Sheath: |
None |
|
| Appendage: |
None |
|
| Culture: |
Culture diffuse, no aerial mycellium, hyaline, becoming dark brown with sporulation, septate, branching. |
| Anamorph: |
Monotosporella |
|
Other info
|
| Type & Location: |
BIOTECH, SS51, Khao Yai National Park, Thailand, 25 Sep. 1996, S. Sivichai and E. B. G. Jones. |
| Other Specimens: |
|
| Substratum: |
Submerged, well rotted, decorticated hard wood. |
| Habitat: |
lotic (stream) |
| Distribution: |
Taiwan |
| Pertinent Literature: |
Mycoscience 39: 307-311 |
| Comments: |
See World Report for additional information. |
Additional Pictures
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