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

Gymnosporangium sabinae: spermogonia on Pyrus pyraster

Pyrus pyraster, Belgium, prov. Namue, Couvin (Frasnes), Carrière des Grosses Haies: spermogonia © Stéphane Claerebout

detail

Gymnosporangium sabinae: spermogonia on Pyrus pyraster

detail

de onderzijde vsn het blad is hier duidelijk vergald

Gymnosporangium sabinae: spermogonia on Pyrus pyraster

the underside of the leaf is clearly galled here

Pyrus communis, Elburg © Arnold Grosscurt

Gymnosporangium fuscum

Pyrus communis, Elburg © Arnold Grosscurt

bladonderzijde met aecia

Gymnosporangium fuscum

underside of leaf with aecia

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