Coleosporium narcissi Groves, 1922
on Pinus ?
probably, like all other Coleosporium species:
orange coloured, hypophyllous uredinia; telia not known.
Even the exact name of the host plant is uncertain. Henderson (2000a) writes of N. poeticus, but in 2004 he switches to N. pseudonarcissus.
This is the only Coleosporium known from a monocotyledonous host plant. Therefore it is very unfortunate that the species has been collected only once (in the UK), and that only the uredinia are known.
Gäumann (1959a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Wilson & Henderson (1966a).