Scadoxus longifolius

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Scadoxus longifolius
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Genus: Scadoxus
Species:
S. longifolius
Binomial name
Scadoxus longifolius
Synonyms [1]
  • Demeusea longifoliaDe Wild. & T.Durand
  • Haemanthus longifolius(De Wild. & T.Durand) Traub

Scadoxus longifolius is a herbaceous plant from Zaire. [1] It is only known from a single collection, and little information is available about it. It appears to be closely related to Scadoxus cinnabarinus , and Inger Nordal and Thomas Duncan suggested in 1984 that it may not be a distinct species. [2]

Contents

Taxonomy

The species was first named in 1900 as Demeusea longifolia by Émile De Wildeman & Théophile Durand. In 1952, it was transferred to the genus Haemanthus by Hamilton Traub. [1] Scadoxus had been separated from Haemanthus by Constantine Samuel Rafinesque in 1838, [3] when he moved Haemanthus multiflorus to Scadoxus multiflorus. [4] This separation was ignored by most workers until 1976, when Scadoxus was again segregated from Haemanthus by Ib Friis and Inger Nordal. Haemanthus species are southern in distribution, form true bulbs and have 2n = 16 chromosomes, whereas Scadoxus species, such as S. longifolius, are found throughout tropical Africa, do not all form bulbs and have 2n = 18 chromosomes. [5]

Scadoxus longifolius appears to be closely related to Scadoxus cinnabarinus and may not be a distinct species. [2]

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<i>Scadoxus</i> Genus of flowering plants

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<i>Scadoxus membranaceus</i> Species of plant

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Scadoxus nutans is a herbaceous plant endemic to southwest Ethiopia. Its red to pink flowers face downwards as the top of the flowering stem bends over, unlike any of the other species of Scadoxus. It grows mainly as an epiphyte in tropical mountain forests, which are disappearing, making the species vulnerable to extinction. It is sometimes cultivated as an ornamental plant.

<i>Scadoxus pole-evansii</i> Species of flowering plant

Scadoxus pole-evansii, commonly known as the Inyanga fireball, is a herbaceous plant endemic to mountains in east Zimbabwe. It was only discovered for science in 1960. Similar in many respects to the more widely grown Scadoxus multiflorus, it is cultivated as an ornamental plant.

Scadoxus pseudocaulus is a herbaceous plant native to Nigeria, Equatorial Guinea, Cameroon and Gabon. Similar in many respects to Scadoxus cinnabarinus, it is cultivated as an ornamental plant but has proved reluctant to flower.

Inger Nordal is a Norwegian professor of botany.

<i>Eucomis regia</i> Species of flowering plant

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References

  1. 1 2 3 4 "Scadoxus longifolius", World Checklist of Selected Plant Families , Royal Botanic Gardens, Kew , retrieved 2014-03-24
  2. 1 2 Nordal, I.; Duncan, T. (1984), "A cladistic analysis of Haemanthus and Scadoxus", Nordic Journal of Botany, 4 (2): 145–153, doi:10.1111/j.1756-1051.1984.tb01482.x
  3. Rafinesque-Smaltz, C.S. (1838), Flora Telluriana, Philadelphia, part 4, p. 19 , retrieved 2014-03-25
  4. "Scadoxus multiflorus", World Checklist of Selected Plant Families , Royal Botanic Gardens, Kew , retrieved 2014-03-25
  5. Meerow, Alan W. & Clayton, Jason R. (2004), "Generic relationships among the baccate-fruited Amaryllidaceae (tribe Haemantheae) inferred from plastid and nuclear non-coding DNA sequences", Plant Systematics and Evolution, 244 (3–4): 141–155, doi:10.1007/s00606-003-0085-z, S2CID   10245220