Gymnosporangium sabinae (Dickson) Winter, 1884
Fungi, Basidiomycota, Pucciniomycetes, Pucciniales, Pucciniaceae
op Pyrus
on Pyrus
Pyrus pyraster, België, prov. Namen, Couvin (Frasnes), Carrière des Grosses Haies: spermogonia © Stéphane Claerebout
Pyrus pyraster, Belgium, prov. Namue, Couvin (Frasnes), Carrière des Grosses Haies: spermogonia © Stéphane Claerebout
Gymnosporangium sabinae
detail
detail
Gymnosporangium sabinae
de onderzijde vsn het blad is hier duidelijk vergald
the underside of the leaf is clearly galled here
Gymnosporangium sabinae
Pyrus communis, Elburg © Arnold Grosscurt
Pyrus communis, Elburg © Arnold Grosscurt
Gymnosporangium sabinae
bladonderzijde met aecia
underside of leaf with aecia
Gymnosporangium sabinae
gal in het voorjaar bovenzijdige wratachtige spermogonia. Later ontstaan op grote, onderzijdige, oranje vergallingen tot 2 cm hoge aeciia, die zich met een aantal zijdelingse spleten openen.
gall in spring epiphyllous pustular spermogonia. Later large orange coloured hypophyllous gallings develop, with up to 2 cm high aecia, openng by a number of lateral slits.
spermogonia, aecia: Rosaceae, monofaag
spermogonia, aecia: Rosaceae, monophagous
Pyrus betulifolia, communis & subsp. pyraster, elaeagnifolia, nivalis, orientalis, pashia, pyrifolia, regelii, salicifolia, spinosa, syriaca.
op Juniperus
on Juniperus
gal alleen telia, op zwellingen van de takken, ± kegelvormig, tot 2 mm hoog, vochtig bruingeel. Teliosporen in twee typen: kleurloos, dunwandig, gedrongen en bruin, dikwandig, slank; sporen apicaal kegelvormig. Ze meten 20-30 x 38-40 µm; elk van de twee dellen met 2 kiemporen nabij de scheidinswand.
gall only telia, on swellings of the branches, ± conical, up to 2 mm high, yellowish brown when moist. Teliospores in two forms: hyaline, thin-walled, stout, and brown, thick-walled, slender; spores apically conical. They measure 20-30 x 38-40 µm; esch of the two cells with 2 germimnation pores close to the separation wall.
telia: Cupressaceae, nauw monofaag
telia: Cupressaceae, noarrowly monophagous
Juniperus chinensis, excelsa, oxycedrus, phoenicea, sabina, thurifera, virginiana.
synoniemen Gymnosporangium fuscum de Candolle, 1905; Roestelia cancellata Rebentisch, 1804.
synonyms Gymnosporangium fuscum de Candolle, 1905; Roestelia cancellata Rebentisch, 1804.
opmerkingen Op peer zeer talrijk, opvallend, en schadelijk.
notes On pear very common, striking, and damaging.
literatuur
references
Bahcecioglu & Kabaktepe (2012a), Belllmann (2012a), Blumer (1946a), Brandenburger (1985a: 29), Buhr (1964b), Chinery (2011a), Dauphin & Aniotsbehere (1997a), Deckert & Deckert (2016a), Dervis, Dixon, Doğanlar & Rossman (2010a), Gäumann (1959a), Gjærum, Gauslaa & Talgø (2008a), González-Fragoso (1925a), Groom (2011a), Helfer (2005a), Henderson (2000a, 2004a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Karlsson (2008a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Llorens i Villagrasa (1984a), Maier, Begerow, Weiß & Oberwinkler (2003a), Maier, Wingfield, Mennicken & Wingfield (2007a), Negrean (1997a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Riegler-Hager (2000a), Roskam (2009a), Scheuer & Bechter (2012a), Termorshuizen & Swertz (2012a), Unamuno (1941b), Vanderweyen & Fraiture (2008a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a), Zhao, Liu, Li & Cai (2016a).
27/05/2017