Freshwater Ascomycetes - Species Monograph
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| Genus |
Species |
Author |
| Aquapoterium |
pinicola |
Raja & Shearer |
| Class |
Order |
Family |
| Leotiomycetes |
Helotiales |
Helotiaceae |
Genbank ID:
483894
MycoBank ID:
506628
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| Synonymy: |
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Description
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| Habit: |
Apothecia superficial on Pinus needles submerged in water. |
|
| Ascomata: |
Ascomata apothecial. Apothecia on Pinus needles 95–200 X 125–240 µm, scattered, shiny white to cream colored when fresh, becoming brown on drying, superficial; cupulate, appearing convex in the center, becoming applanate toward the periphery, stipitate or sessile, if stipe present ca. 50–350 X 20–25 µm, cylindrical. |
|
| Peridium: |
Excipulum one cell layer thick, composed of a single layer of parallel hyphae composed of chains of cells narrow at basal end and enlarged at apical end, at the base they appear to be globose to isodiametric; cells ca. 13–15 X 5–7 µm, forming textura oblita. |
|
| Beak: |
Absent |
|
| Hamathecium: |
Paraphyses 40–72 X 2 µm, hyaline, filiform, obtuse to clavate at apex; apical region of paraphyses ca. 2–5 µm wide, smooth, branched, occasionally in a gel matrix. |
|
| Ascus: |
Asci 50–80 X 7–10 µm (mean = 63 X 9 µm, n = 40), cylindric-clavate, thin-walled, inoperculate, with a broad, rounded apex; apical wall slightly thickened; apex MEZ-, with an apical slit, with 8 uniseriate or biseriate ascospores. |
|
| Ascospore: |
Ascospores 12–18 X 4–5 µm (mean = 14 X 4 µm, n = 50), clavate-cylindric, multiguttulate, hyaline, aseptate, with a gelatinous sheath ca. 1–3 µm wide, which occasionally detaches in water. |
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| Sheath: |
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| Appendage: |
None present. |
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| Culture: |
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| Anamorph: |
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Other info
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| Type & Location: |
TYPE. UNITED STATES. FLORIDA: Liberty County, Apalachicola National Forest, unnamed swamp, 30°17'02"N, 84°50'25"W, water temperature 30 C, pH 6.4, on submerged Pinus needles, 12 Jul 2004, Huzefa A. Raja and Christopher Brown, F47-1 (HOLOTYPE ILL 40117). |
| Other Specimens: |
Ocala National Forest, unnamed swamp, 29°07'46"N, 81°37'34"W, water temperature 15 C, pH 5–5.5, on submerged Pinus needles, 20 Feb 2006, Huzefa A. Raja and J.L. Crane, F47-2;- Chain O’ Lakes, 29°07'57"N, 81°38'35"W, water temperature 17 C, pH 5–5.5, on submerged Pinus needles, 20 Feb 2006, Huzefa A. Raja and J. L. Crane, F47-3; Blackwater River State Forest, swampy area along Mason Branch Creek at Highway 191, 30°49'31"N, 86°54'53"W, water temperature 7 C, pH 5.5, on submerged Pinus needles, 12 Feb 2006, Huzefa A. Raja and J.L. Crane, F47-4; Callaway Swamp, 30°57'27"N, 86°59'48"W, water temperature 30 C, pH 5.5, on submerged Pinus needles, 7 Jul 2006, Huzefa A. Raja and J.L. Crane, F47-5; Big Coldwater Creek East Fork, 30°50'47"N, 86°59'02"W, water temperature 25 C, pH 5–5.5, on submerged Pinus needles, 7 Jul 2006, Huzefa A. Raja and J.L. Crane, F47-6; Archbold Biological Station on the Lake Wales Ridge, on submerged Pinus needles, 12 Jan 2000, Carol A. Shearer, A424-1. |
| Substratum: |
Pinus needles. |
| Habitat: |
Lentic. |
| Distribution: |
USA (FL) |
| Pertinent Literature: |
Raja, H. and C. Shearer. 2008. |
| Comments: |
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Additional Pictures
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Asci and paraphyses.
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Paraphyses.
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Paraphyses with associated gelatinous material.
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