Jump to genus: Radula,
Rainiera,
Ramalina,
Ramaria,
Ramariopsis,
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Raphanus,
Ratibida,
Reseda,
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Rhaponticum,
Rheum,
Rhinanthus,
Rhizina,
Rhizocarpon,
Rhizoplaca,
Rhizopogon,
Rhodiola,
Rhodocollybia,
,
Rhododendron,
Rhodofomes,
Rhus,
Rhynchospora,
Rhytidiadelphus,
Rhytisma,
,
Ribes,
Rickenella,
Rigiopappus,
Rimularia,
Rinodina,
Robinia,
Romanzoffia,
Roridomyces,
Rorippa,
Rosa,
Rotala,
,
Rubus,
Rudbeckia,
Rufoplaca,
,
Rumex,
Rupertia,
Ruppia,
Rusavskia,
,
Russula