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Propolis dracophylli P.R. Johnst. 1986

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P.R. Johnst.
P.R. Johnst.
1986
115
ICN
Propolis dracophylli P.R. Johnst. 1986
NZ holotype
species
Propolis dracophylli
New Zealand, STEWART ISLAND: The Neck, Glory Cove, on Dracophyllum longifolium, P. R. Johnston, H. Donner, 5. V. 1984 (PDD 46721 — Holotype)

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dracophylli

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Propolis dracophylli P.R. Johnst. 1986

New Zealand: AUCKLAND: Waitakere Ra., Destruction Gully Track, on Dracophyllum sp., P. R. Johnston, 14.Xl. 1983 (PDD 44691). STEWART ISLAND: The Neck, Glory Cove, on Dracophyllum longifolium, P. R. Johnston, H. Donner, 5.V.1984 (PDD 46721 - Holotype).
Ascocarps developing on upper and lower surfaces of fallen leaves. Not associated with a differentiated lesion or zone lines. Ascocarps round or elliptic in outline, 0.3-0.7 mm diam. Immature ascocarps have the appearance of small, raised pustules on leaf surface. Opening by several, irregular splits, with the covering host and fungal tissue folding back to expose the white, pruinose hymenium.

Ascocarps deeply immersed in hypodermal tissue. In vertical section more or less orbicular in shape. Upper wall poorly developed, comprising 3-4 layers of hyaline, gelatinised hyphae, 2.5-4 µm diam. Inside of wall lined with a layer of unbranching periphyses, 8-10 x 2-3 µm. Crystals form amongst the periphyses and wall hyphae near the top of the margin. Lower wall not present, subhymenium 10-20 µm wide, forming directly on disintegrating host tissue.

Paraphyses 0.8-1.2 µm diam., propoloid, tangled together, intermixed with crystals near the apices, often anastomosing near bases, extending 15-20 µm beyond asci. Asci 114-147 x 7.5-9 µm, cylindric, tapering to the small truncate, or broadly rounded, apex, non-amyloid, 8-spored. Ascus wall thickened near apex, with a broad, central pore. Ascospores filiform, not tapering, often coiling on release, 80-112 x 1.2-1.5 µm, 0-1 septate, with a gelatinous cap at both ends.

CHARACTERISTICS IN CULTURE: Ascospores germinated on agar plates after 2-3 days. Colonies on oatmeal agar 2-3 cm diam. after 8 weeks; aerial mycelium white, cottony, erect; agar pink, with yellow patches near edges of colony. Remaining sterile.

Found on fallen leaves of Dracophyllum species.
Ascocarpi orbiculati, 0.3-0.7 mm diam, disco pallido. Paraphyses filiformes, ramosae, 0.8-1.2 pm diam; asci cylindrici, 114-147 x 7.5-9 µm; ascosporae, 80-112 x 1.2-1.5 µm, 0-1 septatae.

ETYMOLOGY: dracophylli; refers to host plant.

NOTES: The structure of the ascocarp margin and the appearance of the ascus apex of this species are similar to those of some Ostropalean genera such as Stictis and Propolidium. However 0-1 septate ascospores with a gelatinous sheath, and anastomosing paraphyses are distinctive Rhytismataceous characters. The external appearance of the ascocarp conforms to that of Propolis.

PDD 46721 ex Dracophyllum longifolium (J.R. et G. Forst.) R. Br.

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Propolis dracophylli P.R. Johnst. 1986
Propolis dracophylli P.R. Johnst. (1986)
Propolis dracophylli P.R. Johnst. 1986
Propolis dracophylli P.R. Johnst. (1986)
Propolis dracophylli P.R. Johnst. 1986
Propolis dracophylli P.R. Johnst.

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Propolis dracophylli P.R. Johnst. 1986
[Not available]

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typification
New Zealand, STEWART ISLAND: The Neck, Glory Cove, on Dracophyllum longifolium, P. R. Johnston, H. Donner, 5. V. 1984 (PDD 46721 — Holotype)

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1cb19ce8-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
18 October 1993
4 November 2019
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