Coleosporium melampyri (Rebentisch) Klebahn, 1854

on Pinus

gall

See Coleosporium tussilaginis sensu lato.

spermogonia, aecia

Pinaceae, monophagpous

Pinus mugo, sylvestris.


on Melampyryum

Coleosporium melampyri: telia om Melampyrum pratense

Melampyrum pratense, Stokkum © Arnold Grosscurt: telia

Coleosporium melampyri: teliospores

Melampyrum pratense, Bergen NH, Uilenvanger: teliospores

Coleosporium tussilaginis: teliospores in situ

the spores are standling like basalt columns in the telium

Coleosporium melampyri: killing Melampyrum pratense

infested plants die off

Coleosporium melampyri: killing Melampyrum pratense

mortality was almost population-wide

gall

The teliospores are arranged like basalt columns, on top covered by a layer of a waxy substance. Initially they are one-celled, but in the end meiosis takes place, resulting in a chain of four haploid cells. Each one germinates under formation of a sterigma (picture above), on top of which eventually a spore will be formed (Mims & Richardson).

The uredinia and telia of Coleosporium species morphologically are indistinguishable. For pictures see for instance C. melampyri and C. tussilaginis.

uredinia, telia

Orobanchaceae, monophagous

Melampyrum arvense, cristatum, nemorosum, polonicum, pratense, sylvaticum.

synonyms

Coleosporium tussilaginis f. sp. melampyri Boerema & Verhoeven, 1972.

references

Bahcecioglu & Kabaktepe (2012a), Blumer (1946a), Brandenburger (1985a: 24), Dietrich (2013a), Doppelbaur & Doppelbaur (1973a), Gäumann (1959a), González-Fragoso (1925a), Helfer (2013), Henderson (2004a), Jage, Klenke, Kruse oo (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2014), Losa España (1944a), Mims & Richardson (2005a), Negrean (1996a), Poelt & Zwetko (1997a), Schmid-Heckel (1985a), Scholler, Reinhard & Schubert (1996a), Termorshuizen & Swertz (2011a), Tóth (1994a).

mod 24.v.2019