Freshwater Ascomycetes - Species Monograph
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| Genus |
Species |
Author |
| Natantispora |
retorquens |
(Shearer & J.L. Crane) J. Campb., J.L. Anderson & Shearer (2003) |
| Class |
Order |
Family |
| Sordariomycetes |
Halosphaeriales |
|
Genbank ID:
85911
|
| Synonymy: |
Basionym: Halosarpheia retorquens Shearer & J.L. Crane |
Description
|
| Habit: |
Ascomata on wood superficial, partially immersed or immersed. |
|
| Ascomata: |
Ascomata 150–326 x 150–366 (mean = 230 x 222), solitary to gregarious, superficial, partially immersed or immersed, globose to subglobose, hyaline at first, becoming black, ostiolate. |
|
| Peridium: |
Peridium membranous, pseudoparenchymatic, multi-layered, the outer layer brown to black, inner layer hyaline, of laterally compressed cells. |
|
| Beak: |
Neck cylindrical, periphysate, dark at base, hyaline at apex, 108–564 x 13.5–50 µm (mean = 269–31 µm). |
|
| Hamathecium: |
Hamathecium of catenophyses. |
|
| Ascus: |
Asci unitunicate, clavate, thin-walled, deliquescing before or at maturity, 53–144 x 14.4-24 µm (mean = 80 x 18 µm) |
|
| Ascospore: |
Ascospores ellipsoidal, hyaline, 1-septate, appendiculate, 20.4–33.6 µm (mean = 27.3 x 8.0 µm). |
|
| Sheath: |
None observed. |
|
| Appendage: |
Ascospore appendages bipolar, composed of a single,coiled or folded filament, at first hamate, finally unwinding in water to produce a long, fine filament. |
|
| Culture: |
Colonies on EmersonÕs yeast extract soluble starch agar effuse, floccose, hyaline, becoming gray to black. Mycelium composed of branched, septate, subhyaline to brown hyphae. |
| Anamorph: |
None observed. |
|
Other info
|
| Type & Location: |
ILLS 38994 |
| Other Specimens: |
|
| Substratum: |
Woody and herbaceous debris submerged in fresh water. |
| Habitat: |
Lotic and lentic. |
| Distribution: |
See World Records Database |
| Pertinent Literature: |
Shearer & Crane 1980; Hyde et al. 1999; Campbell et al. 2003. |
| Comments: |
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Additional Pictures
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