Puccinia punctata Link, 1816

op Galium

on Galium

Puccinia punctata on Galium mollugo

Galium mollugo, Belgium, prov. Antwerp, Dessel © Carina Van Steenwinkel: leaf spot, upperside

Puccinia punctata: aecia on Galium mollugo

underside; aecia in a compact circle

Puccinia punctata: spermogonia, aecia en uredinia on Galium mollugo

spermogonia, aecia, and uredinia

Puccinia punctata: spermogonia, aecia en uredinia on Galium mollugo

another example

Puccinia punctata: aeciospores

aeciospores

Puccinia punctata: urediniospore

urediniospores

Puccinia punctata: urediniospore

urediniospores: surface sculpture

18205_1018205_9

teliosporen on Galium mollugo (at left) and G. sylvaticum; from Gäumann (1959a).

gall

Spermogonia amphigenous. Aecia like the spermogonia rarely formed; hypophyllous, in groups on discoloured, sometimes somewhat galled spots, cupulate, with white, recurved margin split into segments and yellow spores. Uredinia and telia generally amphigenous, light and dark brown, respectively. Urediniospores with 2, generally equatorial pores. Teliospores two-celled, 14-39 x 21-67 µm, brown, with apically strongly thickened wall, an a light brown pedicel.

hostplants

Rubiaceae, monophagous

Galium album, aparine, aristatum, corrudifolium, glaucum, humifusum, intermedium, lucidum, megalospermum, meliodorum, mollugo, odoratum, parisiense, productum, pumilum, rivale, rotundifolium, rubrum, saxatile, scabrum, spurium, sylvaticum, uliginosum, verum.

synonyms

Pucccinia deminuta Vleugel, 1908; ? galii-elliptici Maire, 1901; galii-silvatici Otth, 1904.

notes

Gäumann and Klenke & Scholler recognise within this species several formae speciales.

The difference between P. punctata and P. difformis is unsharp; according to Gäumann the only fundamental difference is the fact that difformis does not form uredinia; but whether the absence of uredinia excludes punctata is not clear. Additional differences are the clustered arrangement of the aecia in punctata and the formation of telia on the stems in difformis. With much hesitation therefore the material illustrated below is attributed punctata.

Puccinia cf punctata: aecia and telia on Galium aparine

Galium aparine, Belgium. prov. Limburg, Lommel, Kolonie © Carina Vansteenwinkel

Puccinia cf punctata: aecia and telia on Galium aparine

aecia and telia

Puccinia cf punctata: teliospores

teliospores

references

Blumer (1946a), Brandenburger (1985a), Buhr (1964b), Dauphin & Aniotsbehere (1997a), Doppelbauer & Doppelbuar (1973a), Gäumann (1959a), Ellis & Ellis (1997a), Erdoğdu, Hüseyin & Suludere (2010a), Gäumann (1959a), Gjaerum (1982a, 1986a), González Fragoso (1924a), Henderson (2000a, 2004a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Kruse & Jage (2014a), Losa España (1942a), Ludwig (1974a), Marková & Urban (1988a), Mayor (1971a), Negrean (1997a), Negrean & Denchev (2000a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Ruszkiewicz-Michalska (2006a), Savchenko, Heluta, Wasser & Nevo (2014d), Scheuer & Bechter (2012a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tomasi (2012a, 2014a), Tóth (1994a), Vanderweyen & Fraiture (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

30/05/2017

pub 30.v.2017 · mod 12.viii.2017