| Cyclanthaceae | |
Sphaeradenia acutitepala
| Harling | Acta Horti Berg. 18(1): 354, f. 95d–e | 1958 |
| Cyclanthaceae | |
Sphaeradenia alba
| R. Erikss. | Opera Bot. 126: 87–88, f. 34A, 36A–B | 1995 |
| Cyclanthaceae | |
Sphaeradenia alleniana
| Harling | Acta Horti Berg. 18(1): 362, f. 98a–c | 1958 |
| Cyclanthaceae | |
Sphaeradenia amazonica
| Harling | Acta Horti Berg. 18(1): 358, f. 96e–m, t. 89 | 1958 |
| Cyclanthaceae | |
Sphaeradenia andina
| Harling | Acta Horti Berg. 18(1): 374, f. 101d–f | 1958 |
| Cyclanthaceae | |
Sphaeradenia angustifolia
| (Ruiz & Pav.) Harling | Acta Horti Berg. 17: 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia asplundii
| (Harling) Harling | Acta Horti Berg. 17: 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia brachiolata
| R. Erikss. | Opera Bot. 126: 71 | 1995 |
| Cyclanthaceae | |
Sphaeradenia buenaventurae
| Harling | Acta Horti Berg. 18(1): 389, f. 107a–b | 1958 |
| Cyclanthaceae | |
Sphaeradenia carnosa
| R. Erikss. | Opera Bot. 126: 64–66, f. 24C, 25A–B | 1995 |
| Cyclanthaceae | |
Sphaeradenia carrilloana
| Grayum & Hammel | Syst. Bot. 7(2): 227, f. 13–18 | 1982 |
| Cyclanthaceae | |
Sphaeradenia chelidonura
| Harling | Acta Horti Berg. 18(1): 366, f. 99e–k | 1958 |
| Cyclanthaceae | |
Sphaeradenia chiriquensis
| Harling | Acta Horti Berg. 18(1): 376, f. 102, t. 97 | 1958 |
| Cyclanthaceae | |
Sphaeradenia columnaris
| R. Erikss. | Opera Bot. 126: 74, f. 27C | 1995 |
| Cyclanthaceae | |
Sphaeradenia compacta
| R. Erikss. | Opera Bot. 126: 54, f. 19C | 1995 |
| Cyclanthaceae | |
Sphaeradenia crassiceps
| R. Erikss. | Opera Bot. 126: 54–55, f. 19D, 20C–D | 1995 |
| Cyclanthaceae | |
Sphaeradenia crocea
| Harling | Acta Horti Berg. 18(1): 387, f. 4n, 106a, t. 100 | 1958 |
| Cyclanthaceae | |
Sphaeradenia cuadrosii
| Galeano & R. Bernal | Caldasia 14: 33 | 1984 |
| Cyclanthaceae | |
Sphaeradenia cuatrecasasiana
| Harling | Acta Horti Berg. 18(1): 359, f. 97a–g, t. 90 | 1958 |
| Cyclanthaceae | |
Sphaeradenia danielii
| Harling | Acta Horti Berg. 18(1): 384, f. 104 | 1958 |
| Cyclanthaceae | |
Sphaeradenia davidsoniae
| Harling | Acta Horti Berg. 18(1): 379, f. 103h–i, t. 99 | 1958 |
| Cyclanthaceae | |
Sphaeradenia distans
| R. Erikss. | Opera Bot. 126: 72–74, f. 25E–F, 27B | 1995 |
| Cyclanthaceae | |
Sphaeradenia duidae
| Harling | Acta Horti Berg. 18(1): 364, f. 98h–k, t. 93 | 1958 |
| Cyclanthaceae | |
Sphaeradenia ensiformis
| (Hook. f.) Harling | Acta Horti Berg. 18(1): 375–376, f. 101G–K, t. 96 | 1958 |
| Cyclanthaceae | |
Sphaeradenia fosbergii
| Harling | Acta Horti Berg. 18(1): 353, f. 951–c | 1958 |
| Cyclanthaceae | |
Sphaeradenia garciae
| Harling | Acta Horti Berg. 18(1): 389, f. 106d–f | 1958 |
| Cyclanthaceae | |
Sphaeradenia gigantea
| R. Erikss. | Opera Bot. 126: 49–51, f. 18A–B, 19A | 1995 |
| Cyclanthaceae | |
Sphaeradenia hamata
| Harling | Acta Horti Berg. 18(1): 351, f. 94c, f | 1958 |
| Cyclanthaceae | |
Sphaeradenia horrida
| (Harling) Harling | Acta Horti Berg. 18(1): 350–351, f. 4J, 94A–D | 1958 |
| Cyclanthaceae | |
Sphaeradenia imperialis
| (Linden & André) Harling | Acta Horti Berg. 18(1): 392 | 1958 |
| Cyclanthaceae | |
Sphaeradenia irazuensis
| (Cufod.) Harling | Acta Horti Berg. 17(1): 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia killipii
| (Standl.) Harling | Acta Horti Berg. 17(1): 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia laucheana
| (Sander ex Mast.) Harling | Acta Horti Berg. 17(1): 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia lemaensis
| Harling | Bol. Soc. Venez. Ci. Nat. 25: 65 | 1963 |
| Cyclanthaceae | |
Sphaeradenia longepedunculata
| Harling | Acta Horti Berg. 18(1): 390, f. 107c–f, t. 102 | 1958 |
| Cyclanthaceae | |
Sphaeradenia macrescens
| R. Erikss. | Novon 17(2): 158–159, f. 1D–F | 2007 |
| Cyclanthaceae | |
Sphaeradenia magniglobula
| R. Erikss. | Opera Bot. 126: 87, f. 30D, 33D–E | 1995 |
| Cyclanthaceae | |
Sphaeradenia maguirei
| Harling | Mem. New York Bot. Gard. 23: 112 | 1972 |
| Cyclanthaceae | |
Sphaeradenia marcescens
| R. Erikss. | Novon 17: 158, f. 1D–F, 2 | 2007 |
| Cyclanthaceae | |
Sphaeradenia meridionalis
| R. Erikss. | Opera Bot. 126: 55 | 1995 |
| Cyclanthaceae | |
Sphaeradenia occidentalis
| R. Erikss. | Opera Bot. 126: 80–82, f. 29C–E, 30B | 1995 |
| Cyclanthaceae | |
Sphaeradenia oligostemon
| Harling | Acta Horti Berg. 18(1): 356, f. 96a–d | 1958 |
| Cyclanthaceae | |
Sphaeradenia oxystigma
| R. Erikss. | Opera Bot. 126: 42 | 1995 |
| Cyclanthaceae | |
Sphaeradenia pachystigma
| Harling | Acta Horti Berg. 18(1): 378, f. 103a–g, t. 98 | 1958 |
| Cyclanthaceae | |
Sphaeradenia pallida
| R. Erikss. | Opera Bot. 126: 76–77, f. 27E | 1995 |
| Cyclanthaceae | |
Sphaeradenia pendula
| Hammel | Phytologia 60(1): 11-12, f. 4, 5 | 1986 |
| Cyclanthaceae | |
Sphaeradenia perangusta
| R. Erikss. | Opera Bot. 126: 47, f. 16E, 17C | 1995 |
| Cyclanthaceae | |
Sphaeradenia praetermissa
| R. Erikss. | Opera Bot. 126: 79–80, 29A–B, 30B | 1995 |
| Cyclanthaceae | |
Sphaeradenia proboscidifera
| R. Erikss. | Opera Bot. 126: 74–76, f. 27D, 28C–D | 1995 |
| Cyclanthaceae | |
Sphaeradenia pterostigma
| Harling | Acta Horti Berg. 18(1): 355, f. 95f–h | 1958 |
| Cyclanthaceae | |
Sphaeradenia pulchra
| R. Erikss. | Opera Bot. 126: 92–94, f. 2A | 1995 |
| Cyclanthaceae | |
Sphaeradenia purpurea
| Harling | Acta Horti Berg. 18(1): 385, f. 105 | 1958 |
| Cyclanthaceae | |
Sphaeradenia quitoensis
| (Harling) Harling | Acta Horti Berg. 17(1): 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia rhodocephala
| (Harling) Harling | Acta Horti Berg. 18(1): 391, f. 4m | 1958 |
| Cyclanthaceae | |
Sphaeradenia rostellata
| R. Erikss. | Novon 17(2): 156–158, f. 1A–C | 2007 |
| Cyclanthaceae | |
Sphaeradenia rubescens
| Harling | Bol. Soc. Venez. Ci. Nat. 25: 66 | 1963 |
| Cyclanthaceae | |
Sphaeradenia sanctae-barbarae
| Harling | Opera Bot. 1: 42 | 1973 |
| Cyclanthaceae | |
Sphaeradenia scandens
| R. Erikss. | Opera Bot. 126: 82–83, f. 2B, 6, 30C, 33A–C | 1995 |
| Cyclanthaceae | |
Sphaeradenia silvestris
| Harling | Acta Horti Berg. 18(1): 372, f. 101a–c | 1958 |
| Cyclanthaceae | |
Sphaeradenia sneidernii
| Harling | Acta Horti Berg. 18(1): 370, f. 100e–h, t. 95 | 1958 |
| Cyclanthaceae | |
Sphaeradenia sphagnicola
| Harling | Acta Horti Berg. 18(1): 361, f. 97h–k, t. 91 | 1958 |
| Cyclanthaceae | |
Sphaeradenia stenosperma
| Harling | Acta Horti Berg. 18(1): 388, f. 106b–c, t. 101 | 1958 |
| Cyclanthaceae | |
Sphaeradenia steyermarkii
| (Harling) Harling | Acta Horti Berg. 17: 3 | 1954 |
| Cyclanthaceae | |
Sphaeradenia stylosa
| Harling | Acta Horti Berg. 18(1): 352, f. 94g–h, t. 88 | 1958 |
| Cyclanthaceae | |
Sphaeradenia vallensis
| Harling | Acta Horti Berg. 18(1): 382, f. 4l, 103 m–n | 1958 |
| Cyclanthaceae | |
Sphaeradenia versicolor
| R. Erikss. | Opera Bot. 126: 51 | 1995 |
| Cyclanthaceae | |
Sphaeradenia virella
| R. Erikss. | Opera Bot. 126: 99, f. 36E–F, 37D | 1995 |
| Cyclanthaceae | |
Sphaeradenia woodsonii
| Harling | Acta Horti Berg. 18(1): 363, f. 98d–g, t. 92 | 1958 |