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Ramaria avellaneovertex R.H. Petersen 1988

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Threat status: Critical
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Ramaria avellaneovertex R.H. Petersen 1988
Ramaria avellaneovertex 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
105
ICN
Ramaria avellaneovertex R.H. Petersen 1988
NZ holotype
species
Ramaria avellaneovertex

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avellaneovertex

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Ramaria avellaneovertex R.H. Petersen 1988

North Island: OSF, Kauri Reserve, Lake Loop Track, 1.vi.82, coll. RHP, no. 43440 (TENN); WKR, vic. Forestry Headquarters, 11.v.83, coll. RHP, no. 43819 (holotype, PDD; isotype, TENN).
Fruit bodies up to 6 x 2.5 cm, branched, obypramidal in profile. Stipe single, up to 23 x 6 mm, tapering downward, rounded at base, with a few aborted branchlets, off-white. Major branches 2 - several, arising at about the same level, up to 4 mm thick, terete, ascending to erect, pallid greyish yellow ("colonial buff"); axils narrowly rounded, internodes diminishing gradually. Apices cuspidate to dichotomous, short, stout, pallid lavender when young ("avellaneous") muting and fading in age ("vinaceous buff", "cream buff"). All parts appearing subtranslucent or water-soaked; flesh of all parts watery except at stipe, more or less soapy or slippery when rubbed; flesh concolourous to surface, somewhat darker at branch tips. Dirt specks clearly watery vinescent. Odour and taste negligible.
Macrochemical reactions: FCL = deep forest-green; PHN = ambiguous; ANW, KOH, NOH, PYR, ANO, GUA = negative.
Tramal hyphae of branches up to 20 µm diam., inflated, of barrel-shaped cells, adherent when dry, hyaline, clampless, strictly parallel, tightly packed. Hymenium thickening significantly and irregularly; basidia 40-45 x 5-7 µm, clavate, clampless, hyaline singly, golden in mass; contents more or less homogeneous; sterigmata 4, spindly, erect.
Spores (Fig. 102) (8.3) 9.4-11.2 x 4.3-5.0 µm (E =1.77-2.42; Em = 2.15; Lm = 10.02 µm), ellipsoid to subcylindrical, conspicuously roughened in profile; contents sludgy to uni- to several-guttulate, deep golden refringent; wall less than 0.2 µm thick; hilar appendix from oblique to almost perpendicular to spore axis, papillate; ornamentation of significantly raised warts and meandering ridges covering significant amounts of wall surface.
Under Agathis.
Receptacula ad 60 x 25 mm, in circumsciptione obpyramidalia. Stipite indivisibili, ad 23 x 6 mm, deorsum contracto, cremeo; ramis et ramulis flavis sordidis; apicibus cuspidatis ad dichotomis, junioribus avellaneis, vetustioribus leniter vinaceis; odore et sapore nullo; in stipite guttulis parvulis leniter vinascentibus. Hyphis efibulatis, inflatis; basidiis 40-45 µm longis, davatis, efibulatis; sterigmatibus 4. Sporis 9.4-11.2 x 4.3-5.0 µm, ellipsoideis ad subcylindricis, ornatis, ut in oratione infra.

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Ramaria avellaneovertex R.H. Petersen 1988
Ramaria avellaneovertex R.H. Petersen (1988)
Ramaria avellaneovertex R.H. Petersen 1988
Ramaria avellaneovertex R.H. Petersen (1988)
Ramaria avellaneovertex R.H. Petersen 1988
Ramaria avellaneovertex R.H. Petersen (1988)

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Ramaria avellaneovertex R.H. Petersen 1988
New Zealand
Auckland
Ramaria avellaneovertex R.H. Petersen 1988
New Zealand
Mackenzie
Ramaria avellaneovertex R.H. Petersen 1988
New Zealand
Nelson
Ramaria avellaneovertex R.H. Petersen 1988
New Zealand
Northland
Ramaria avellaneovertex R.H. Petersen 1988
New Zealand
Wellington

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1cb1b7c6-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
15 December 2003
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