Freshwater Ascomycetes - Species Monograph
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| Genus |
Species |
Author |
| Lambertella |
advenula |
(W. Phillips) Hosoya & Otani, Mycoscience 38: 303. 1997. |
| Class |
Order |
Family |
| Discomycetes |
Helotiales |
Rustroemiaceae |
|
| Synonymy: |
≡ Helotium advenulum W. Phillips in W. Phillips and Plowright, Grevillea 6: 24. 1877.
≡ Hymenoscyphus advenulus (W. Phillips) W. Phillips, British Discomycetes, p. 133. 1887.
≡ Phialea advenula (W. Phillips) Sacc., Syll. Fung. 8: 256. 1889.
≡ Ciboriopsis advenula (W. Phillips) Dennis, Kew Bull. 16: 319. 1962.
≡ Moellerodiscus advenulus (W. Phillips) Dumont, Mycologia 68: 235. 1976. |
Description
|
| Habit: |
Ascomata on submerged decomposed Picea mariana needles. |
|
| Ascomata: |
Stroma not seen. Apothecia 600–700 x 128–200 µm, scattered, yellow; disc 230–370 µm in diam., convex, pruinose; receptacle cylindrical, tapering to a slightly wider base; base light brown. |
|
| Peridium: |
Ectal excipulum of textura globosa, thin-walled. Paraphyses 1.5–2 µm wide, mostly simple, at times branched and with rounded ends. |
|
| Beak: |
Not applicable. |
|
| Hamathecium: |
Paraphyses 1.5–2 µm wide, mostly simple, at times branched and with rounded ends. |
|
| Ascus: |
Asci 74–83 x 7.5–9.5 µm, cylindric-clavate, inoperculate, thin-walled, tapering to a short hoof-shaped stipe; apex broadly conical, with pore staining in MLZ. |
|
| Ascospore: |
Ascospores 8–12 x 2–3.5 µm ellipsoid, guttulate, at first surrounded entirely with a gelatinous sheath that becomes bipolar in water; sheath at each end 10–15 µm long. |
|
| Sheath: |
Gelatinous sheath present that surrounds the ascospore and becomes bipolar in water; sheath at each end 10–15 µm long. |
|
| Appendage: |
None observed. |
|
| Culture: |
|
| Anamorph: |
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Other info
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| Type & Location: |
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| Other Specimens: |
SPECIMEN EXAMINED: USA. WISCONSIN: Vilas Co., Trout Bog, UTM Zone 16, 292189mE, 5102049mN, 46°02'427"N, 89°41'146"W, on submerged decomposed Picea mariana needles, 1 May 1997, PMF & JLC P6-30 (ILLS 53998). |
| Substratum: |
Picea mariana needles; Larix needles. |
| Habitat: |
Terrestrial and aquatic habitats. |
| Distribution: |
North America (Wisconsin), Europe, Japan. |
| Pertinent Literature: |
Fallah & Shearer 2001. |
| Comments: |
See Discussion in Fallah & Shearer 2001. |
Additional Pictures
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Figs. 1–6, bar = 50 µm; Fig. 7, bar = 10 µm.
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