Coleosporium spp., secondary aecia (uredinia) and basidiosori (telia). a1, a2. C. campanulae, secondary aecia on Campanula persicifolia; b1, b2. C. inulae, secondary aecia on Inula helenium, basidiosori on I. magnifica; c. C. pulsatillae, secondary aecia on Pulsatilla pratensis; d1, d2. C. senecionis, basidiosori with germinated basidia on Senecio ovatus (recognisable by the somewhat pruinose surface), close-up with young basidiosori; (b, c, d1 by Julia Kruse).