Pucciniastrum epilobii Otth, 1861

fir-fireweed rust

on Abies

gall

Spermogonia and aecia hypophyllous. Spermogonia subcuticular. Aecia in two rows, cylindrical, c. 1 mm high; spores ovoid, finely verrucose, but at one side with a smooth spot.

spermogonia, aecia

Pinaceae, monophagous

Abies alba, balsamea, cephalonica, grandis, lasiocarpa, nordmanniana, pinsapo, sachalinensis var. maryiana.


on Onagraceae

Pucciniastrum epilobii on Epilobium spec.

Epilobium montanum, Loenen (Ge.), © Arnold Grosscurt

Pucciniastrum epilobii: uredinia on Epilobium spec.

underside of a leaf with uredinia

Pucciniastrum epilobii: urediniospores

urediniospores (herbarium specimen)

Pucciniastrum epilobii: uredinia on Epilobium

Epilobium spec., England, Vice County: Berks, VC22: even at hand lens magnification one can see that the uredinia are vacated through a pore © Malcolm Storey, BioImages

Pucciniastrum epilobii on Fuchsia spec.

Fuchsia spec., Dronten © Arnold Grosscurt

Pucciniastrum epilobii: urediniospore

urediniospore

Pucciniastrum epilobii: urediniospore

same spore, another image

Pucciniastrum epilobii: uredinium, telium

Epilobium tetragonum, from Losa España (19442): a: section throufh uredinium; b: urediniospores; c: section through telium

gall

uredinia mostly hypophyllous, also often on the stem, minute, numerous, yellow-orange covered by a peridium, with a central pore; the cells around the pore with a thickened, but smooth wall. Telia as minute, hypophyllous crusts. The teliospores are subepidermal, 2-4 celled, brown.

uredinia, telia

Onagraceae, broadly oligophagous

Chamerion angustifolium; Clarkia amoena, “elegans”, purpurea; Epilobium alpestre, alsinifolium, anagallidifolium, ciliatum & subsp. glandulosum, collinum, dodonaei, duriaei, fleischeri, hirsutum, laxum, montanum, obscurum, pallidiflorum, palustre, parviflorum, roseum, tetragonum & subsp. lamyi; Fuchsia magellanica, splendens; Lopezia racemosa; Oenothera acaulis, deflexa.

synonyms

Pucciniastrum fuchsiae Hiratsuka, 1927 is generally understood as a synonym of epilobi; however, Beenken & Senn-Irlet write that DNA-analysis rather indicate it is a valid species, limited to Fuchsia.

synonyms

Pucciniastrum abieti-chamaeneri Klebahn, 1900.

references

Beenken & Senn-Irlet (2016a), Brandenburger (1985a: 16, 413), Ellis & Ellis (1997a), Gäumann (1959a), Gjaerum (1982a), González-Fragoso (1925a), 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), Losa España (1942a), Mayor (1967a), McTaggart, Geering & Shivas (2014a), Maier, Begerow, Weiß & Oberwinkler (2003a), Negrean (1997a), Poelt & Zwetko (1991a, 1997a), Riegler-Hagler (2002b), Ruszkiewicz-Michalska (2006a), Savchenko, Heluta, Wasser & Nevo (2014c), Scheuer & Bechter (2012a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tomasi (2003a), Vanderweyen & Fraiture (2007a), Wahyuno, Susan & Kakishima (2012a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

mod 6.xii.2017