]> [collector note: Bryophyte herbarium: WB, North America: B, G, H, KIEL, LE, NMW, NY, PC, S-PA; Bohemia: B; Europe: NMW, S-PA; Thuringia: H; Bryophytes: BP, BR, S] [author note: example of name published Sphagnum robustum var. gracilescens Röll] Botany Röll, Julius Röll, Julius J. Röll Röll Roell 1846 1928