Spetaea

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Spetaea
Spetaea lachenaliiflora 15467200.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Scilloideae
Genus: Spetaea
Wetschnig & Pfosser [1]
Species:
S. lachenaliiflora
Binomial name
Spetaea lachenaliiflora
Wetschnig & Pfosser [1]

Spetaea is a monotypic genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae (also treated as the family Hyacinthaceae). [2] The only known species Spetaea lachenaliiflora is found only in the south-west of the Cape Province in South Africa. [3] Prior to 2003, it was incorrectly known as Scilla plumbea.

Contents

Description

Spetaea lachenaliiflora grows from underground bulbs which have a leathery dark brown outer tunic. The linear leaves are produced at the same time as the flowers; they are smooth, green and fleshy. The flowers are borne on an upright stem (peduncle) in a many-flowered raceme which forms a narrow cylindrical shape. Individual flowers have six bright blue tepals which are joined at the base for about two thirds of their length producing a narrow bell shape. The tepals persist into the fruiting stage. The stamens have filaments joined to each other at the base and to the base of the tepals. The ovoid seeds are black. [4] They have a prominent whitish hilum which distinguishes the species from related genera. [5]

Spetaea lachenaliiflora is found only in the west of Cape Province, South Africa, where it is found in moist areas and along streams in the Bains Kloof and Du Toits Kloof Mountains. [4]

Systematics

The genus and species were named by Wolfgang Wetschnig and Martin Pfosser in 2003. [5] [1] Previously, the species was mistakenly called Scilla plumbea, correctly the name for a different plant now called Merwilla plumbea . The generic name honours Franz Speta, an Austrian botanist specializing in the Scilloideae who first drew Wetchnig and Pfosser's attention to the difference between this species and the true Scilla plumbea. The specific epithet indicates the similarity in the overall appearance of the flowers to those of the genus Lachenalia . [5]

Spetaea is placed in the tribe Hyacintheae (or subfamily Hyacinthoideae by those who accept the family Hyacinthaceae). [4] Molecular phylogenetic studies have shown that it is close to the genus Daubenya . [6]

Related Research Articles

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

Scilla is a genus of about 30 to 80 species of bulb-forming perennial herbaceous plants in the family Asparagaceae, subfamily Scilloideae. Sometimes called the squills in English, they are native to woodlands, subalpine meadows, and seashores throughout Europe, Africa and the Middle East. A few species are also naturalized in Australasia and North America. Their flowers are usually blue, but white, pink, and purple types are known; most flower in early spring, but a few are autumn-flowering. Several Scilla species are valued as ornamental garden plants.

<span class="mw-page-title-main">Scilloideae</span> Subfamily of bulbous monocot plants

Scilloideae is a subfamily of bulbous plants within the family Asparagaceae. Scilloideae is sometimes treated as a separate family Hyacinthaceae, named after the genus Hyacinthus. Scilloideae or Hyacinthaceae include many familiar garden plants such as Hyacinthus (hyacinths), Hyacinthoides (bluebells), Muscari and Scilla and Puschkinia. Some are important as cut flowers.

<i>Ornithogalum</i> Genus of perennial bulbous plants in the asparagus family (Asparagaceae

Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus. Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green. The common name of the genus, star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appears in the biblical account of the birth of Jesus. The number of species has varied considerably, depending on authority, from 50 to 300.

<i>Galtonia</i> Genus of plants

Galtonia is a genus of plants in the family Asparagaceae, subfamily Scilloideae. Native to Southern Africa, the genus is named after Sir Francis Galton. According to some authorities it has been subsumed into Ornithogalum as a subgenus, while others prefer to keep it as a separate genus.

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

Massonia is a genus of bulbous perennial flowering plants in the family Asparagaceae, subfamily Scilloideae. It is native to southern Africa, and is found in localities such as Namaqualand with hot and dry summers, being dormant in summer and growing during winter. The genus Whiteheadia has been merged into Massonia. It is classed as a cryptophyte.

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

Puschkinia is a genus of four known species of bulbous perennials in the family Asparagaceae, subfamily Scilloideae. It is native to the Caucasus and the Middle East. Puschkinia scilloides is grown as an ornamental bulbous plant.

<i>Scilla <span style="font-style:normal;">sect.</span> Chionodoxa</i> Section of plants in the genus Scilla

Scilla section Chionodoxa, known as glory-of-the-snow, is a small group of bulbous perennial flowering plants in the family Asparagaceae, subfamily Scilloideae. Formerly treated as the separate genus Chionodoxa, they are now included in Scilla as a section. The section is endemic to the eastern Mediterranean, specifically Crete, Cyprus and Turkey. The blue, white or pink flowers appear early in the year making them valuable garden ornamentals. The common name of the group is based on the habit of flowering in high alpine zones when the snow melts in spring.

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

Brimeura is a genus of bulb-forming, monocotyledonous perennial plants. They have narrow leaves and bear bluebell-like flowers in Spring. Brimeura is treated in the family Asparagaceae, subfamily Scilloideae, tribe Hyacintheae, subtribe Hyacinthinae. It contains the following species

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

Drimia is a genus of flowering plants. In the APG IV classification system, it is placed in the family Asparagaceae, subfamily Scilloideae. When broadly circumscribed, the genus includes a number of other genera previously treated separately, including Litanthus, Rhodocodon, Schizobasis and Urginea.

<i>Scilla litardierei</i> Species of flowering plant

Scilla litardierei, the amethyst meadow squill or Dalmatian scilla, is a species of flowering plant in the family Asparagaceae. A bulbous perennial, with blue grape-hyacinth like flowers, blooming in late spring, much later than the more popular Siberian squill and later than Muscari which it resembles.

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

Barnardia is a small genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. The genus has two species, one found in the Balearic Islands and north-west Africa, the other in east China, Korea, Japan and adjacent localities. It was suggested in 2012 that the two species were not closely related.

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

Daubenya is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is native to the Cape Province of South Africa.

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

Dipcadi is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is widely distributed, occurring in southern Europe, most of Africa and the Middle East through to the Indian subcontinent.

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

Fessia is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is distributed from Iran to Central Asia and Pakistan.

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

Fusifilum is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is distributed in southern Africa. Some sources consider that all the species should be placed in the genus Drimia.

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

Merwilla is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is distributed in southern Africa, from Zimbabwe to South Africa. This genus is named after the botanist Frederick Ziervogel Van der Merwe (1894–1968), who worked on this group.

Namophila is a monotypic genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. The sole species Namophila urotepala is found only in Namibia.

<i>Prospero</i> (plant) Genus of flowering plants

Prospero is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is distributed in Europe, around the Mediterranean, and through the Middle East to the Caucasus.

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

Pseudogaltonia is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. It is distributed in southern Africa.

Pseudoprospero is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. The genus has a single species Pseudoprospero firmifolium, which is endemic to South Africa.

References

  1. 1 2 3 Search for "Spetaea", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew , retrieved 2013-04-13
  2. Stevens, P.F. (2001 onwards) "Asparagales: Scilloideae", Angiosperm Phylogeny Website, retrieved 2013-04-13
  3. "Spetaea lachenaliiflora", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew , retrieved 2013-04-13
  4. 1 2 3 Manning, J.C.; Goldblatt, P.; Fay, M.F. (2004), "A revised generic synopsis of Hyacintheaceae in sub-Saharan Africa, based on molecular evidence, including new combinations and the new tribe Pseudoprospereae", Edinburgh Journal of Botany, 60 (3): 533–568, doi:10.1017/S0960428603000404
  5. 1 2 3 Wetschnig, W.; Pfosser, M. (2003). "The Scilla plumbea puzzle – present status of the genus Scilla sensu lato in southern Africa and description of Spetaea lachenaliiflora, a new genus and species of Massonieae (Hyacinthaceae)". Taxon. 52 (1): 75–91. doi:10.2307/3647303. JSTOR   3647303.
  6. Ali, Syed Shujait; Yu, Yan; Pfosser, Martin & Wetschnig, Wolfgang (2012), "Inferences of biogeographical histories within subfamily Hyacinthoideae using S-DIVA and Bayesian binary MCMC analysis implemented in RASP (Reconstruct Ancestral State in Phylogenies)", Annals of Botany, 109 (1): 95–107, doi:10.1093/aob/mcr274, PMC   3241591 , PMID   22039008