Abstract
Surface and transverse section achene structures ofBolboschoenus maritimus, B. robustus, B. fluviatilis, B. novae-angliae, B. glaucus, and the putative hybridsB. maritimus × B. rubustus andB. glaucus × B. maritimus from North America are described and illustrated with SEM micrographs. The same three type of pericarp structure reported by Browning and Gordon-Gray (1993) from southern Africa were found except that the “type 2” (B. glaucus) was not matched precisely. Intermediate achene structures and other evidence support both the hybrid origin ofB. novae-angliae (=B. fluviatilis × B. robustus) and hybridization betweenB. glaucus andB. maritimus. The new combinationBolboschoenus novae-angliae is made.
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Browning, J., Gordon-Gray, K.D. & Smith, S.G. Achene structure and taxonomy of North American Bolboschoenus (Cyperaceae). Brittonia 47, 433–445 (1995). https://doi.org/10.2307/2807575
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DOI: https://doi.org/10.2307/2807575