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Lachnum palmae (Kanouse) Spooner 1987

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Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner 1987

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Indigenous, non-endemic
Uncertain
New Zealand
Political Region
Specimens identified as L. palmae from Japan and from China have different ITS sequences to those from NZ; whether either of the Asian or New Zealand specimens represent the same species as the type specimen (from Central America) remain unknown. The morphologically similar palm-inhabiting species from Australia, L. pritzelianum, differs in lacking gelatinous tissue in the excipulum. [PRJ, Aug 2019]

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(Kanouse) Spooner
Kanouse
Spooner
1987
484
ICN
species
Lachnum palmae

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palmae

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Lachnum palmae (Kanouse) Spooner 1987

See Manaaki Whenua datastore https://doi.org/10.7931/wrwv-2563, Erioscyphella in New Zealand

Lachnum palmae (Kanouse) Spooner 1987

Apothecia scattered, stipitate, up to 1 mm high; disc pure white, up to 1.6 mm in diam when fresh, Greyish Red (7B6) when dry, with elevated, incurving margin; receptacle white when fresh, buff white when dry; stipe stout, shearing 1/2-2/3 of the height, composed of elongate cells, 15-25 x 3.5-5 µm. Ectal excipuium two layered; outer layer "textura prismatica" of thick-walled, agglutinated prismatic cells, 19.5-34 x 4.5-9 µm; inner layer thin-walled, non-agglutinated hyphae of 1.5-2 µm, wide, running parallel to the outside, poorly developed near the margin. Medullary excipulum 'textura intricata', of vertically developing hyphae arising from inner ectal excipulum. Hairs cylindrical, thin-walled, multi-septate, granulate all over, up to 150 µm long, 3-3.5 µm wide. Asci 89-95 x 6-7 µm, uniform in shape, cylindrical clavate, thick-walled, arising from simple septa; apex conical with flattened top, MLZ+ without KOH pretreatment. Ascospores 60-74 x 1.5 µm, filiform, flexuous, borne in one fascicles in the asci, non-septate, very rarely (about one out of 50) septate; septation irregular, 2- to 3-septate near the end. Paraphyses narrowly lanceotate to cylindrical with pointed apex, straight, 2-3 µm wide at the widest point, septate, not exceeding the asci.
Colonies on PDA 1 5-18 mm in diam (23C, 3 wk), low and dense, plane, funiculous, smooth at the margin, slimy, Light Yellow (4A4) to Brownish Orange (5C3); reverse concolorous. Context tough and glutinous. Aerial mycelium little to not developed, forming fascicles. Sectors and zonations absent. Margin distinct, entire, superficial or immersed.
Notes. There is another species of Lachnum on Livistona leaves with filiform ascospores: L. pritzelianum (Henn.) Spooner. Lachnum palmae has agglutinated tissue in the ectal excipulum. This is a remarkable characteristic in the genus Lachnum, which distinguishes L. palmae from L. pritzelianum. Nagao (1996a) collected L. pritzelianum from the same substrate in Bonin Isl.

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Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner (1987)
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner (1987)
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner (1987)
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner 1987
Lachnum palmae (Kanouse) Spooner (1987)

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Lachnum palmae (Kanouse) Spooner 1987
New Zealand
Auckland
Lachnum palmae (Kanouse) Spooner 1987
New Zealand
Bay of Plenty
Lachnum palmae (Kanouse) Spooner 1987
New Zealand
Northland

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taxonomic status
Based on ITS sequences closely related to 'Lachnellula' rhopalostylidis, both perhaps belonging in Erioscyphella sp.; the thick-walled excipular cells fit for this genus, cf Tanaka & Hosoya (2001) [PRJ, Aug 2019]

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1cb18ffe-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
22 April 2010
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