Complete issue - IMA Fungus

Piątek, Lutz & Kemler
ARTICLE
Fig. 3. Microbotryum silenes-saxifragae sp. nov. on Silene saxifraga (KR-M-23890 – holotype). A–B. Spores seen by LM, median and superficial
views. C. Hardly visible tubercles in LM at very high magnification using Nomarski optics, indicated by arrows. D–G. Spores with tuberculate,
rough and verruculose interspaces seen by SEM. H. Close-up of spore ornamentation seen by SEM. Bars: A–B = 10 µm, C–E = 5 µm, F = 4
µm, G = 3 µm, H = 1 µm.
but visible in SEM. The reason for morphological variation
in different specimens is uncertain, but it might be related to
different developmental stages or environmental conditions.
In conclusion, the genetic divergence, the host plant
and the distinct spore morphology indicate that the anther
smut on Silene saxifraga represents a new species that is
36 ima fUNGUS