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Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009

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Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir, Austral. Pl. Pathol. 38 507 (2009)
Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009

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Exotic
Present
New Zealand
Political Region

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A.B. Graham, P.R. Johnst. & B.S. Weir
A.B. Graham, P.R. Johnst. & B.S. Weir
2009
507
ICN
Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009
NZ holotype (ICMP 17421)
species
Phaeoacremonium armeniacum
armeniacus = apricot coloured; refers to the pigmentation of the infected wood from which this species was isolated.

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armeniacum

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Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009

Hyphae smooth, hyaline to brown, sometimes aggregated into strands up to about 5 hyphae wide. Strands of grouped hyphae sometimes arranged in small coils, with conidiogenous cells held on the outside of these coils. Conidiogenous cells terminal and lateral, mostly monophialidic, rarely with 2–3 conidiogenous cells held on a one-celled, short-cylindric conidiophore. Conidiogenous cells 9.5–17  2–3 µm, hyaline, Type I and Type II (sensu Mostert et al. 2006), subcylindrical to elongate-ampulliform, often slightly swollen at base, not constricted; conidiogenous locus with non-flaring collarette about 1–1.5 µm long and wide. Conidia 4.0–5.5  1.5–2 (–2.5) µm, oblong-elliptic, straight or irregularly curved, ends broadly rounded, 0–septate, hyaline. Conidia on agar surface 6.5–9 (–12)  1.5–2.5 µm, cylindric, curved, allantoid, 0–septate, hyaline. Cultural characteristics: Colonies on MEA 30–32 mm diam. after 16 days, aerial mycelium cottony, uniform in height, pale greyish-green (28B2), with scattered, irregular pinkish patches, margin entire. PDA 18–19 mm diam. after 16 days, aerial mycelium cottony, sparse towards margin, greyish-red (7B2), white to margin, agar surface undulate with radiate ridges, margin entire. OA 20–21 mm diam. after 16 days, aerial mycelium cottony, in ropey upright strands, pale bluish grey (20C2) with irregular greyish red patches, yellow in reverse, yellow pigment diffusing across agar, margin slightly and irregularly scalloped.
In mycelio aerio hyphae singulae vel ad 5 fasciculatae, plerumque hyalinae, laeves. Conidiophora nulla. Phialides 9.5–17  2–3 µm, terminales vel laterales, praecipue typi I vel typi II, cylindricae vel elongato-ampulliformes. Conidia 6.5–9 (–12)  1.5–2.5 µm, oblongo-ellipsoidea, hyalinae, 0–septatae; in agaro 6.5–9 (–12)  1.5–2.5 µm, plerumque allantoidea.
Holotypus: New Zealand, Auckland, Whenuapai, on Vitis berlandieri x V. riparia hybrid rootstock, vascular staining of living wood, A. Graham ES68, 21 Mar 2007, ICMP 17421 (dried culture from holotype, PDD 93586).

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Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009
Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B. Weir (2009)
Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009

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Phaeoacremonium armeniacum A.B. Graham, P.R. Johnst. & B.S. Weir 2009
New Zealand
Auckland

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Etymology
armeniacus = apricot coloured; refers to the pigmentation of the infected wood from which this species was isolated.

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fc4fad28-9100-46ed-8c61-746477f938b4
scientific name
Names_Fungi
18 September 2009
31 December 2021
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