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Phaedranassa
Genus of flowering plants From Wikipedia, the free encyclopedia
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Phaedranassa is a genus of South American and Central American plants in Amaryllis family, subfamily Amaryllidoideae.[3][1][4][5]
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Description
Vegetative characteristics
Phaedranassa are bulbous,[6] perennial[7] herbs[8] with ovate,[9] long-necked bulbs[10] and contractile roots.[11][12] Mature non-contractile roots are 15–30 cm long.[12] The leaves are petiolate.[13]
Generative characteristics
The tall,[8] umbellate inflorescence[6] with a thick, round,[9] hollow scape[9][14] bears 5–15 tubular,[6] inodorous,[13] actinomorphic,[15] pink, red, or yellow, green-banded flowers.[16] The apex of the flowers is green.[17] The stigma and stamens slightly extend beyond the floral tube.[10] The flower has six tepals.[18] The androecium consists of 6 stamens.[18][17] The gynoecium consists of 3 carpels.[9][18] The stigma is clavate.[3] The many-seeded capsule fruit[18] bears papery seeds.[6]
Cytology
The chromosome count is 2n = 46.[13]
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Taxonomy
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Publication
The genus Phaedranassa Herb. was published by William Herbert in 1845.[19] The type species is Phaedranassa chloracra Herb.[2] (a synonym of Phaedranassa dubia (Kunth) J.F.Macbr.)[20]
Species
As of June 2023[update], Plants of the World Online accepted the following species:[19]
- Phaedranassa brevifolia Meerow - Ecuador
- Phaedranassa carmiolii Baker - Costa Rica
- Phaedranassa cinerea Ravenna - Ecuador
- Phaedranassa cuencana Minga, C.Ulloa & Oleas - Ecuador
- Phaedranassa dubia (Kunth) J.F.Macbr. - Colombia, Ecuador
- Phaedranassa glauciflora Meerow - Ecuador
- Phaedranassa lehmannii Regel - Colombia
- Phaedranassa schizantha Baker - Ecuador
- Phaedranassa tunguraguae Ravenna - Ecuador
- Phaedranassa viridiflora Baker - Ecuador
Formerly included
Several names have been coined using the name Phaedranassa but referring to species now regarded as better suited in other genera (Eucrosia, Rauhia and Stenomesson).[21]
- Phaedranassa eucrosioides - Eucrosia stricklandii var. stricklandii
- Phaedranassa loxana - Eucrosia stricklandii var. montana
- Phaedranassa megistophylla - Rauhia multiflora
- Phaedranassa multiflora - Rauhia multiflora
- Phaedranassa rubroviridis - Eustephia coccinea
- Phaedranassa vitellina - Stenomesson aurantiacum
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Ecology
The flowers are bird-pollinated.[13]
Cultivation
Phaedranassa are easily cultivated.[6]
References
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