Neoërysiphe galeopsidis (de Candolle) Heluta, 1988

on Acanthaceae, Bignoniaceae, Lamiaceae, Malvaceae

Neoerysiphe galeopsidis on Galeopsis tetrahit

Galeopsis tetrahit, Flevoland, Reve-Abbertbos © Hans Jonkman

Neoerysiphe galeopsidis on Galeopsis tetrahit

young and ripe cleistothecia

Neoërysiphe galeopsidis on Lamium purpureum

Lamium purpureum, Beuningen ov

Neoërysiphe galeopsidis on Lamium purpureum

Lamium purpureum, Oud Zuilen; © Arnold Grosscurt: heavy infestation

Neoërysiphe galeopsidis on Lamium purpureum

Lamium purpureum, Denekamp. lg. Singraven: plants killed

Neoërysiphe galeopsidis

Lamium purpureum, Nieuwendam

Neoërysiphe galeopsidis

conidia chain

Neoërysiphe galeopsidis

two appressoria, one in lateral view, one from above

Neoërysiphe galeopsidis

paired appressoria

cf Neoërysiphe galeopsidis: conidia

Alcea rosa, Amsterdam Oost: conidia

cf Neoërysiphe galeopsidis: conidiophore

conidiophore

cf Neoërysiphe galeopsidis: appressoriumcf Neoërysiphe galeopsidis: appressorium

appressoria

gall

mycelium dense, white, amphigenous, often covering the entire leaf. Appressoria lobed, often paired. Conidia barrel-shaped, formed in rather short chains, without fibrosin bodies. Cleistothecia globular, dark, with abundant, unspecialised appendages that originate below the equator, up to twice as long as the diameter; the asci form spores only after they have gone through the winter.

hostplants

Acanthaceae, Bignoniaceae, Lamiaceae, Malvaceae, polyphagous

Acanthus hungaricus, mollis, spinosus; Agastache; Ajuga chamaepitys & subsp. chia, genevensis, laxmanii, pyramidalis, reptans, salicifolia; Alcea rosea; Ballota hirsuta, nigra & subsp. foetida; Catalpa bignonioides, x erubescens, speciosa; Chaiturus marrubiastrum; Clinopodium acinos, menthifolium, nepeta, vulgare; Dracocephalum ruyschiana; Eremostachys; Galeopsis angustifolia, bifida, ladanum, pubescens, segetum, speciosa, tetrahit; Glechoma hederacea, hirsuta; Lamium album, amplexicaule, confertum, galeobdolon & subsp. argentatum + montanum, garganicum, maculatum, orvala, purpureum & subsp. mollucellifolium; Leonurus cardiaca; Lycopus; Marrubium peregrinum, pestalozzae, vulgare; Meehania urticifolia; Melissa officinalis; Melittis melissophyllum; Monarda didyma; Nepeta cataria, grandiflora, nuda, racemosa, sibirica, ucranica & subsp. parviflora; Origanum vulgare; Phlomis herba-venti & subsp. pungens, tuberosa; Physostegia; Plectranthus forsteri; Prasium; Prunella; Rosmarinus officinalis; Salvia dumetorum, farinacea; Satureja coerulea, hortensis, montana; Scutellaria galericulata; Sideritis hirsuta, hyssopifolia, montana, romana & subsp. purpurea; Stachys alopecuros, alpina, x ambigua, anisochila, annua, arvensis, byzantina, coccinea, cretica, germanica & subsp. cordigera, glutinosa, heraclea, iberica, leucoglossa, marrubiifolia, ocymastrum, officinalis, palustris, recta & subsp. labiosa, sylvatica, tymphaea; Thymus; Ziziphora capitata.

synonyms

Erysiphe galeopsidis de Candolle, 1815.

inquilines

Mycodiplosis melampsorae.

notes

Braun & Cook mention, next to Leveilllula contractirostris, N. galeopsidis as the only mildews on Alcea rosea. Yet, the pictures above, taken from a declining hollyhock in a street garden, do not well fit in the description of galeopsidis, in particular regarding the appressoria and the long basal cell of the conidiophore.

references

Blumer (1946a, 1967), Brandenburger (1972a, 1985a), Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Czerniawska (2001a), Czerniawska, Madej, Adamska ao (2000a), Doppelbaur & Doppelbaur (1973a), Dynowska, Fiedorowicz & Kubiak (1999a), Fraiture & Vanderweyen (2009a) Hafellner (1980a), Heluta, Hayova, Tykhonenko ao (2010a), Henricot (2009a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Mułenko, Sałata & Wołczańska (1995a), Negrean & Denchev (2004a), Piątek (2004a), Ruszkiewicz-Michalska (2006a), Schmid-Heckel (1985a), Scholler, Schmidt, Siahaan ao (2016a), Scholler & Schubert (1993a), Sucharzewska, Dynowska, Kubiak ao (2012b), Tóth (1994a), Wołczańska (2008a).

25/05/2017

pub 25.v.2017 · mod 15.viii.2017