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Agrocybe sp. 2 Watling & G.M. Taylor 1987

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Uncertain
Uncertain
New Zealand
Political Region
No PDD vouchers and Kew material marginal. [JAC]

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Watling & G.M. Taylor
Watling & G.M. Taylor
1987
27
dubious name, invalidly published
ICN
Agrocybe sp. 2 Watling & G.M. Taylor 1987
species
Agrocybe sp. 2

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Hebeloma strophosum (Fries) Fig. 25 = Agrocybe sp.

The characters of a collection under this name at Kew ("New Zealand") indicate that this material is not a Hebeloma. Because of the still visible ring and smooth spores with a broad germ pore, this fungus is placed in Agrocybe. In the absence of data on the colour and other ephemeral characters of fresh carpophores, a reliable identification cannot be made.

Pileus subglobose, soon expanding and becoming convexo-plane and rather umbonate, fragile, viscid when wet, disc dark-tan, even, margin pale and silky from the remains of the veil, but not squamulose, 1.5-3 cm. across; flesh rather thin, watery; gills slightly adnexed, ventrieose, 4-8 mm. broad, pallid, then dingy - cinnamon; spores - 7-8 x 4 µ; stem 2.5.-5 cm. long, hollow, about 6 mm. thick, equal, fragile, pallid and becoming brownish downwards, adpressedly silky,, with a more or less perfect silky ring near the apex.
Wairarapa, Northern Island, New Zealand. Europe.
Grassy spots.
Distinguished more especially by the hollow stem, which is not rooting, and the silky ring very near to the apex of the stem.

Agrocybe sp. 2 Watling & G.M. Taylor 1987

A collection also in K simply labelled 'Agaricus strophosus Fries, New Zealand' is not a species of Hebeloma as would be assumed from the use of Fries' name but a species of Agrocybe. We are grateful to Egon Horak for drawing this Colenso collection, which appears to be from Wairarapa (Massee, 1898), to our attention. The collection consists of a partially expanded basidioma with distinct velar remains on both the pileus-margin and stipe. The gill-margin is badly damaged but the basidiospores are characteristically bolbitiaceous, with thick-wall and large, truncate germ-pore; the basidia are 4-spored.

It can only be assumed that the basidioma when fresh was relatively pale-coloured from the epithet chosen but it is impossible without field data to trace the relationships of this collection. The following additional data are offered:

Basidiospores 10-12 x 7-8.5 µm, ellipsoid, slightly flattened in side-view, smooth, thick-walled, ochraceous brown in water, darker in aqueous alkali solutions; germ-pore distinct, broad. Cystidia not found.

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Agaricus strophosus sensu Berk. (1855)
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 sensu Watling & G.M. Taylor (1987)
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 sensu Watling & G.M. Taylor (1987)
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 sensu Watling & G.M. Taylor (1987)
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 Watling & G.M. Taylor 1987
Agrocybe sp. 2 sensu Watling & G.M. Taylor (1987)
Hebeloma strophosum sensu Massee (1899) [1898]
Hebeloma strophosum sensu Massee (1899) [1898]
Agrocybe sp. 2 Watling & G.M. Taylor 1987

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1cb1d1d7-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
15 March 2001
11 July 2017
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