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Ramariopsis alutacea R.H. Petersen 1988

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This is indigenous
Threat status: Data deficient
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Ramariopsis alutacea R.H. Petersen 1988
Ramariopsis alutacea 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
122
ICN
Ramariopsis alutacea R.H. Petersen 1988
NZ holotype
species
Ramariopsis alutacea
North Island: Waipoua Forest Sanctuary, Hokianga Co., Northland, [New Zealand], vic. Forestry Headquarters, 21.vi.81, coll .RHP, no. 42452 (holotype, PDD 46651, isotype, TENN)

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alutacea

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Ramariopsis alutacea R.H. Petersen 1988

Fruit bodies up to 3.0 x 1.2 cm, branched, arbuscular, arising from small white mycelial patches. Stipe up to 12 x 3 mm, discrete, white or whitish ("pale pinkish cinnamon") at base and there villous, upward tan. Branches dichotomous, terete, arising rather abruptly, tan to pallid tan ("light ochraceous buff") when young, fleshy tan, ("cinnamon-buff", "tawny olive", "clay-color", "pinkish buff", "sayal-brown") when mature; axils rounded; internodes all short, diminishing gradually. Apices awl-shaped, slender, somewhat paler tan ("light ochraceous buff") than branches. Taste and odour negligible.

Macrochemical reaction: FCL on hymenium very pale grey to slate-olive.

Tramal hyphae of branches hardly inflated, hyaline to yellowish in mass, clamped, parallel, free. Subhymenium rudimentary, of tortuous, uninflated hyphae. Hymenium thickening; basidia 35-60 x 7-8 gm, clavate, attenuate downward, clamped, hyaline; contents homogeneous to finally guttulate, with scattered refringent guttules; sterigmata 4, stout, up to 8 gm long, curved-ascending. Basidioles abundant, appearing as leptocystidia or paraphyses. Sclerified basidia occasional (cf. TENN no. 43470).

Spores 5.8-6.8 x 5.0-6.1 gm (E _ 1.00-1.21; E°' = 1.13; L°' = 6.19 gm), globose to very broadly ovate, smooth, non-reactive in IKI, thin-walled, hyaline; contents opalescent; hilar appendix prominent, conical, up to 1.5 gm long.

On woody debris.
Receptacula ad 30 x 12 mm, ramosa, arbuscularia; stipite albo deorsum, sursum alutaceo; ramis alutaceis; apicibus pallide alutaceis; hymenio in FCL olivaceo. Hyphis fibulatis; basidiis 35-60 Nm longis. Sporis globosis ad late ovatis, laevibus, hyalinis, 5.8-6.8 x 5.0-6.1 gym.

This taxon is very similar to others in the Ramariopsis corniculata complex, of which Clavaria pallidorosea Fawc. and R. alcicornis (Zoll. & Mor.) Pet. are Pacific representatives. Another taxon, with light brownish orange fruit bodies, as yet unpublished, fruits in the Himalayas (specimen: PAN no. 22270).

Spores are typical of the group - virtually globose, with prominent hilar appendix, and non-reactive in IKI. The positive FCL reaction is typical of the Comphaceae, in which I consider the complex to be best placed.

Collection TENN no. 43466 is identical micromorphologically, and in stature, but paler (branches and tips "pale pinkish cinnamon" to "pale ochraceous buff"; downward "light ochraceous buff"), and with a bitter taste. It cannot currently qualify as a separate taxon.

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Ramariopsis alutacea R.H. Petersen 1988
Ramariopsis alutacea R.H. Petersen (1988)
Ramariopsis alutacea R.H. Petersen 1988
Ramariopsis alutacea R.H. Petersen (1988)
Ramariopsis alutacea R.H. Petersen 1988
Ramariopsis alutacea R.H. Petersen (1988)

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Ramariopsis alutacea R.H. Petersen 1988
[Not available]

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taxonomic status
Placement in Ramariopsis requires support.
typification
North Island: Waipoua Forest Sanctuary, Hokianga Co., Northland, [New Zealand], vic. Forestry Headquarters, 21.vi.81, coll .RHP, no. 42452 (holotype, PDD 46651, isotype, TENN)

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1cb1a13f-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
20 March 1996
15 December 2003
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