Racodium rupestre
Racodium rupestre Pers., Neues Mag. Bot. 1: 123 (1794).
Index Fungorum number: IF 183801; Facesoffungi number: FoF 11423, Fig. 1
Description: see Hawksworth et al. (2011); Hongsanan et al. (2020a).
Material examined: see Hawksworth et al. (2011); Hongsanan et al. (2020a).
Fig. 1 Racodium rupestre filament (Dalhem, UME 627.10, re-drawn from Fig. 2 B in Hawksworth et al. 2011). Scale bar: = 10 μm.
Importance and distribution
Species of Racodium are rock-inhabiting taxa characterised by fungal hyphae which surrounds the filament of the green alga Trentepohlia (Hawksworth et al. 2011). Some species are pathogenic causing diseases of their hosts. Racodium may be quarantine concern as it causes Racodium snow blight on seedlings and seeds of many conifers in Japan (Sakamoto and Miyamoto 2005). Racodium therryanum is associated with seed infection of Abies koreana in Asia (Korea) (Cho et al. 2005). There are nine Racodium epithets in Index Fungorum (2022), but several species have been transferred to Acladium, Antennatula, Cystocoleus, Rhacodiopsis, Septobasidium, Sorocybe, Sporothrix and Zasmidium. Racodium is distributed in Africa (Ivory Coast), Asia (China), and South America (Peru) and may be pantropical (Hawksworth et al. 2011).
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