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Erysiphe densa Berk. 1855

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Threat status: Data deficient
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Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855

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Endemic
Present
New Zealand
Political Region

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Berk.
Berk.
1855
208
ICN
Erysiphe densa Berk. 1855
NZ
species
Erysiphe densa
HAB. On living leaves of Arisiotelia, Wairarapa, [New Zealand] Colenso K(M)

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densa

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Erysiphe densa Berk. 1855

bifrons, mycelio denso arachnoideo persistente, sporangiis mediis globosis sparsis, appendiculis flexuosis candidis intertextis obovatis brevibus, sporidiis ellipticis suboctonis.
This differs from E. Martii, Lév., merely in its thick persistent mycelium, which gives it a very lichenoid appearance, especially when on the upper surface of the leaves. The appendages are flexuous, sometimes forked, and frequently bear one or two little knots towards the end, showing a tendency to ramify.
On living leaves of Aristotelia, Wairarapa, Colenso.

Erysiphe densa Berk. 1855

Type: Powdery Mildews; Description: Mycelium superficial, thin to dense, white, hyphae 4–5 μm wide; on leaves, twigs, and inflorescences. Appressoria strongly lobed. Ascomata cleistothecial, scattered to gregarious, superficial, globose to oval, dark brown, 0.1 mm in diameter, with numerous 100–300 μm long, unbranched, straight or flexuous, hyaline appendages. Asci 8–18 per ascoma, clavate, short stalked, 40–90 × 25–40 μm. Ascospores 6–8 per ascus, oval, 0-septate, 16–20 × 9–10 μm, smooth, hyaline. Conidiophores 75–110 × 8–13 μm, foot cell straight or swollen. Conidia produced singly, cylindrical, 35–45 × 16–19 μm, smooth, hyaline.
Distribution: Wairarapa, Mid Canterbury.; 1st Record: Berkeley (1855).
Significance: None.; Host(s): *Aristotelia fruticosa, *A. serrata.

Erysiphe densa Berk. 1855

[Notes from Kew Type specimen, PRJ 2010] Kew images.

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Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)
Erysiphe densa Berk. 1855
Erysiphe densa Berk. (1855)

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Erysiphe densa Berk. 1855
[Not available]

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typification
HAB. On living leaves of Arisiotelia, Wairarapa, [New Zealand] Colenso K(M)

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1cb189df-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
6 May 2013
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