Urocystis colchici (Schlechtendal) Rabenhorst, 1861

colchicum smut

on Colchicum

Urocystis colchici on Colchicum autumnale

Colchicum autumnale, Belgium, prov. Namur, Lessive, RN Basse Wimbe © Chris Snyers

gall

elongated, low, amphigenous pustular zones, initially lead-coloured until the epidermis ruptures and a black granular-powdery mass of spore balls is released. The spore balls consist of a group of 1-3 spores, for the most part surrounded by a layer of smaller, sterile cells.

host plants

Colchicaceae, monophagous

Colchicum arenarium, autumnale, bivonae, boissieri, longifolium, neapolitanum, persicum, speciosum, triphyllum, turcicum.

references

Ainsworth & Sampson (1950a), Almaraz (1998a), Buhr (1964b), Klenke & Scholler (2015a), Kruse (2019a), Lotze-Engelhard (2010a), Lutz & Vánky (2009a), Negrean (1996b), Redfern & Shirley (2011a), Scholz & Scholz (2013a), Tomasi (2014a), Vanderweyen & Fraiture (2014a), Vánky (1994a), Vánky & Abbasi (2013a), Vánky, Lutz & Bauer (2008b), Woods, Chater, Smith ao (2018a), Zwetko (1993a).

mod 21.vii.2019