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Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007

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Agaricus campbellensis Geml, Laursen & D. Lee Taylor in Geml et al., Mycotaxon 100 202 (2007)
Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007

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Endemic
Present
New Zealand
Political Region

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Geml, Laursen & D. Lee Taylor
Geml, Laursen & D. Lee Taylor
2007
202
ICN
Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007
Campbell I., NZ (holotype PDD 92093) - MB 510665
species
Agaricus campbellensis
NEW ZEALAND. CAMPBELL ISLAND: PERSEVERENCE HARBOUR, TUCKER COVE (S520 33.1', E169° 9.3') PDD 92093 (Holotype), GAL9420 (Isotype), 9 March 2000, coll. G. A. Laursen [PDD 92093 not present in PDD March 2024]

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campbellensis

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Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007

Pileus 30-50 mm diam, convex to plano-convex, surface dry, tan (5A2, orange white) with appressed, clay or mustard brown (5D5, 5E6) fibrils, margin with veil remnants. Lamellae 4.5 mm broad, pinkish to pale grayish brown (5C3, 5D4,5D5) at first, later dark brown (5E4,5E5), free, crowded, unequal in length, thin. Stipe 40-60 mm long, 8-11 mm thick, whitish with yellow-brown fibrils (3A6, 3A7, 4A6, 4A7), base swollen, tapering toward the pileus, dry, context hollow, white, turning a marbled yellow, tan or grey. Odor and taste: almond. Partial veil white forming an inferior, membrane-like annulus, evanescent in age. Chemical reactions: pileus context and surface yellowing in 5% KOH; Schaeffer reaction positive. Microscopical characteristics: Basidiospores short to medium-elliptical, sometimes elongated, yellow to reddish-brown, wall smooth, thick, entire, apiculate, one- or two-guttulate, dark brown at maturity, (6-) 7-8.8 (-10) x 4-4.5 (-4.8) um, mean and standard deviation are: L 7.61+1.03, W 4.34±0.34; Q=1.69 ± 0.22. Basidia: 2-4-spored, (20.2-) 21.1-24.6 x (6.6-) 7.0 um, clavate. Subhymenium of irregular, swollen, inamyloid cells. Pileipellis of interwoven, inamyloid, cylindrical hyphae, terminal cells cylindrical to slightly swollen tipped. Pileus context of interwoven, inamyloid, cylindrical hyphae. Lamellar trama of parallel to interwoven, inamyloid hyphae. Habitat — On litter, under Dracophyllum scoparium, D. longifolium, and Polystichum vestitum in the subalpine and alpine zones. Collections examined: NEW ZEALAND. CAMPBELL ISLAND: PERSEVERENCE HARBOUR, TUCKER COVE (S52 0 33.1', E169° 9.3') PDD92093 (Holotype), GAL9420 (Isotype), 9 March 2000, coll. G. A. Laursen; same location GAL9379, 6 March 2000, coll. G. A. Laursen. NEW ZEALAND . CAMPBELL ISLAND: PERSEVERENCE HARBOUR, MOUNT HONEY (S52 0 33.5', E169 ° 8.9') GAL9573, GAL9603, 1 4 March 2000 , coll. G. A. Laursen. NEW ZEALAND . CAMPBELL ISLAND: PERSEVERENCE HARBOUR, MOUNT BEEMAN (S52 0 33.7', E 1 6 9 ° 9.2') GAL9605, GAL9633, GAL9649, 1 5 March 2000 , coll. G. A. Laursen. Specimens deposited in ALA.

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Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007
Agaricus campbellensis Geml, Laursen & D. Lee Taylor
Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007
Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007
Agaricus campbellensis Geml, Laursen & D. Lee Taylor (2007)
Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007

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Agaricus campbellensis Geml, Laursen & D. Lee Taylor 2007
[Not available]

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typification
NEW ZEALAND. CAMPBELL ISLAND: PERSEVERENCE HARBOUR, TUCKER COVE (S520 33.1', E169° 9.3') PDD 92093 (Holotype), GAL9420 (Isotype), 9 March 2000, coll. G. A. Laursen [PDD 92093 not present in PDD March 2024]

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d0b65bce-8f77-4e77-b1bc-0f2b1168daf2
scientific name
Names_Fungi
4 July 2007
19 October 2022
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