Pustula obtusata (Link) Rost, 2011
on Asteraceae
Tragopogon spec., Belgium, prov. Flemish Brabant, Diest, Halve Maan, 18.v.2019 © Carina Van Steenwinkel
transverse section
conidia formation
conidia
Tragopogon pratensis, Zwolle-zuid, Zandhove, 6.ix.2021 © Arnold Grosscurt
Tragopogon pratensis, France, dép. Nord, Dunkerque © Sébastien Carbonnelle
Senecio vulgaris, Beuningen ov
detail, underside
conidia
conidia and oospores; derived from Unamuno (1942a)
gall
hypophyllous dull white spots, pustules, even crusts, largely consisting of a mass of conidia. Embedded in the host tissue brown verrucose oospores.
host plants
Asteraceae, oligophagous
Achillea filipendulina, ptarmica; Alfredia cernua; Ambrosia artemisiifolia; Aposeris foetida; Artemisia absinthium, vulgaris; Chamaemelum nobile; Cirsium oleraceum; Crepis sancta; Crupina vulgaris; Dittrichia viscosa; Filago germanica, minima; Gerbera jamesonii; Gnaphalium uliginosum; Helianthus annuus; Helichrysum arenarium; Hieracium; Hypochaeris maculata; Inula britannica, conyzae, hirta, oculus-christi, salicina, spiraeifolia; Jacobaea vulgaris; Laphangium luteo-album; Lapsana communis; Leontodon hispidus, saxatilis; Matricaria chamomilla, discoidea; Pericallis hybrida; Phagnalon saxatile; Picris; Pilosella; Podospermum canum, laciniatum; Scorzonera austriaca, hispanica, humilis, parviflora; Scorzoneroides autumnalis, helvetica; Senecio doronicum, inaequidens, leucanthemifolius subsp. vernalis, squalidus, vulgaris; Serratula tinctoria; Sonchus; Tanacetum partheniifolium, parthenium; Tragogpogon crocifolius, dubius, lamottei, porrifolius & subsp. longirostris, pratensis & subsp. orientalis; Xeranthemum cylindraceum.
synonyms
Albugo tragopogonis (Persoon) Gray, 1821; Pustula tragopogonis (Persoon) Thines, 2005; Cystopus tragopogonis (Persoon) Schröter, 1886. See also Pustula helianthicola.
references
Blumer (1946a), Brandenburger (1985a: 697), Buhr (1965a), Chater, Woods, Stringer, ao (2020a), Choi, Thines, Piątek & Shin (2012a), Constantinescu & Thines (2006a), García-Blázquez, Constantinescu, Tellería Martín (2007a), Jage, Klenke, Kruse ao (2016a, 2017a), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Losa España (1942a), Ludwig (1974a), Melgarejo Nárdiz, García-Jiménez, Jordá Gutiérrez ao (2010a), Melzer, Pittoni, Poelt & Scheuer (1984a), Müller (2015a), Müller & Kokeš (2008a), Mułenko, Kozłowska, Bacigálová ao (2014a), Negrean, Constantinescu & Denchev (2004a), Ploch, Telle, Choi, ao (2011a), Redfern & Shirley (2011a), Riethmüller, Voglmayr, Göker, Weiß & Oberwinkler (2002a), Roskam (2009a), Rost & Thines (2011a), Thines & Spring (2005a), Unamuno (941a, 1942a), Voglmayr & Riethmüller (2006a), Vrandečić ao (2011a).