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Clavulina samuelsii R.H. Petersen 1988

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Threat status: Data deficient
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Clavulina samuelsii R.H. Petersen 1988
Clavulina samuelsii R.H. Petersen 1988

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Endemic
Present
New Zealand
Political Region

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R.H. Petersen
R.H. Petersen
1988
67
ICN
Clavulina samuelsii R.H. Petersen 1988
NZ holotype
species
Clavulina samuelsii
Type New Zealand PDD 46628

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Clavulina samuelsii R.H. Petersen 1988

Fruit bodies up to 35 x 4 mm, usually simple and then narrowly fusiform to subcylindrical with club and stipe flattened somewhat, to occasionally branched, and then branches few, often appearing adventitious, with acute axils and lobed apices, arising from significant white mycelial mat, often connate into groups of 2-4; colour violaceous ivory-colour ("tilleul-buff") all over when young, slowly becoming tan to orange-ochre in the stipe; flesh white; hymenium amphigenous, pruinose under x100, especially on lower club; distinction between stipe and hymenium well marked, especially when dry.

Hyphae of club trama 2.5-6 gm diam., thin-walled, hyaline, clamped, long-celled, generally parallel. Subhymenial hyphae similar to those of the trama, short-celled, hardly inflated. Hymenium thickening significantly; basidia 60-70 x 7.5-9.5 gm, subcylindrical to narrowly clavate, more or less refringent when 'mature but without discrete guttules, clamped; sterigmata (1)-2-(3), stout, divergent, curved; post¬partal septation not observed; cystidia (Fig. 57) up to 150 gm long, cylindrical, arising in subhymenium, projecting from the hymenium up to 50 gm, 9-12 gm diam., septate 1-4 times, with clamps at all septa, golden-refringent apically.

Spores (Fig. 58) 7.2-9.4 x 6.1-7.6 gm (E =1.05-1.41; E'° =1.18; L'° = 8.35 gym), very broadly ellipsoid to broadly ellipsoid, thin-walled, opalescent (not discernibly uniguttulate) when mature; hilar appendix small, papillate.

Under mixed forest, often with kauri.
Receptacula ad 35 x 4 mm, plerumque simplicia, sed subinde sparsim ramosa, juniora cremea, vetustiora murina, avellanea, siccitate alutacea. Hyphis fibulatis; basidiis 60-70 Fun longis; cystidiis ad 150 x 9-12 Fun, cylindricis, septatis, fibulatis. Sporis late ellipsoideis, L- = 8.35 Fun, ut in oratione infra.

All the collections cited were gathered under the name Clavulina tasmanica, at a time when I confused C. tasmanica and C. geoglossoides. Because the latter was so commonly collected, no fresh-colour notes were taken. On microscopic examination, however, cystidia are found consistently to be septate with clamps, to occur singly but abundantly, and spores are somewhat smaller and more ellipsoid than those of C. tasmanica. Moreover, dried specimens show tan to orange-ochre stipes (and overall colour when immature), not seen in dried material of C. tasmanica.

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Clavulina samuelsii R.H. Petersen 1988
Clavulina samuelsii R.H. Petersen (1988)
Clavulina samuelsii R.H. Petersen 1988
Clavulina samuelsii R.H. Petersen (1988)
Clavulina samuelsii R.H. Petersen 1988
Clavulina samuelsii R.H. Petersen (1988)

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Clavulina samuelsii R.H. Petersen 1988
New Zealand
Auckland
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Bay of Plenty
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Buller
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Mid Canterbury
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Northland
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Southland
Clavulina samuelsii R.H. Petersen 1988
New Zealand
Wanganui

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typification
Type New Zealand PDD 46628

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1cb18389-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
19 March 1996
15 December 2003
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