Perissocoeleum Mathias & Constance Bull. Torrey Bot. Club 79: 360 (1952) [wfo-4000028793]P. barclayae Mathias & Constance Brittonia 19: 223 (1967) [wfo-1000066396] P. crinoideum (Mathias & Constance) Mathias & Constance Brittonia 19: 223 (1967) [wfo-0001259603]basionym Prionosciadium crinoideum Mathias & Constance Bull. Torrey Bot. Club 77: 138 (1950) [wfo-0001252808] synonym Prionosciadium crinoideum Mathias & Constance Bull. Torrey Bot. Club 77: 138 (1950) [wfo-0001252808]homotypic Perissocoeleum crinoideum (Mathias & Constance) Mathias & Constance Brittonia 19: 223 (1967) [wfo-0001259603] P. phylloideum (Mathias & Constance) Mathias & Constance Brittonia 19: 224 (1967) [wfo-0001259604]basionym Prionosciadium phylloideum Mathias & Constance Bull. Torrey Bot. Club 79: 368 (1952) [wfo-0001259602] synonym Prionosciadium phylloideum Mathias & Constance Bull. Torrey Bot. Club 79: 368 (1952) [wfo-0001259602]homotypic Perissocoeleum phylloideum (Mathias & Constance) Mathias & Constance Brittonia 19: 224 (1967) [wfo-0001259604] P. purdiei Mathias & Constance Bull. Torrey Bot. Club 79: 360 (1952) [wfo-0000391529] Perissocoeleum: Unplaced Names
unknown Perissocoeleum barclayiae Mathias & Constance Brittonia 19: 223. 1967 [wfo-0000398543]