Willdenowia (plant)

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Willdenowia
Willdenowia incurvata Sonqua Sunreed.jpg
Willdenowia incurvata
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Restionaceae
Genus: Willdenowia
Thunb. 1790 not Willd. 1806
Type species
Willdenowia striata
(syn of W. incurvata)
Synonyms [3]
  • WilldenoviaThunb.
  • NematanthusNees
  • SpirostylisNees ex Mast. 1869, illegitimate homonym, not C.Presl ex Schult. & Schult.f. 1829 (Loranthaceae) nor Raf. 1838 (Marantaceae) nor Baker ex Post & Kuntze 1903 (Malvaceae) [4]

Willdenowia is a small genus of flowering plants in the family Restionaceae described as a genus in 1790. [2] [5] The entire genus is endemic to the fynbos of the Western Cape Province of South Africa. [3] [6]

They are rhizomatous, tufted, dioecious perennials, generally with terete, branching stems (Restionaceae more often have simple stems). The leaf sheaths are convolute and persistent. The male flowers grow in numerous spikelets borne in panicled racemes subtended by caducous spathes. Each floret is subtended by a linear or setaceous caducous bract. There are six papery perianth segments, with the inner shorter than the outer. The anthers are oblong and apiculate and the ovaries are rudimentary. [7]

The female spikelets may be single or several. They are borne in spicate cymes subtended by a persistent spathe. The perianth usually has six unequal segments clasping the sessile or stipitate ovary, which usually has a hard cap and a single locule. There are two styles, sometimes partly joined. The staminodes are ligulate. The fruit has pits or tubercles and is indehiscent. [7]

Species [3]
Formerly included

moved to other genera: Anthochortus Cannomois Ceratocaryum Chrysitrix Hypodiscus Restio

Related Research Articles

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<i>Thamnochortus</i> Genus of plants

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<i>Leucospermum mundii</i> Shrub in the family Proteaceae from the Western Cape of South Africa

Leucospermum mundii is an evergreen, upright, rounded and richly branching shrub of ½–1 m (1½–3 ft) high that is assigned to the family Proteaceae. It has greyish, felty hairy, or hairless leaves that are broadly wedge-shaped to very broadly inverted egg-shaped, 5–8½ cm long and 2–6½ cm wide and whorl-shaped flower heads that have shades of pale yellow to crimson, of 2–4 cm (0.8–1.6 in) long and 1–2 cm (0.4–0.8 in) wide that grow in clusters of three to ten. Their long styles that emerge from the head jointly give the impression of a pincushion, with the pins upright. It is called Langeberg pincushion in English. Flowering heads can be found between July and November. It naturally occurs in fynbos in the Western Cape province of South Africa.

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Vexatorella amoena, also known as the Swartruggens vexator is an evergreen shrub of up to about 1 m (3 ft) high, that is assigned to the family Proteaceae. It has entire, inverted egg-shaped, bluish grey, leathery leaves of 1½–3 cm (0.6–1.2 in) long and 5–11 mm (0.20–0.45 in) wide on a distinct stalk, and globular flower heads of about 2 cm (0.8 in) across with pale pink flowers with extended, thick-tipped styles at the tip of the branches. The plants are flowering from September to November. It is an endemic species that is restricted to the Western Cape province of South Africa.

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Vexatorella obtusata is an evergreen shrub, with narrow, leathery leaves and about 2 cm big, globular flowerheads consisting of well scented, creamy pink flowers, from which a long style with a thickened tip extends. Two subspecies are distinguished, both restricted to different parts of the Western Cape province of South Africa. The creeping V. obtusata subsp. obtusata, also known as the Montagu vexator flowers from September to December, and the upright V. obtusata subsp. albomontana, also known as the Witteberg vexator, that has flowers between August and November.

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Dais is a genus of flowering plants in the family Thymelaeaceae. It is also part of the Gnidia subfamily, along with Gnidia, Drapetes, Kelleria, Pimelea, Struthiola, Lachnaea and Passerina, other genera of species). It is distributed between Tanzania to S. Africa, Madagascar. It is native to the countries of Eswatini, Lesotho, Madagascar, Malawi, Tanzania, Zimbabwe and it is also found within several Provinces of South Africa, such as Cape Provinces, Free State, KwaZulu-Natal and Northern Provinces.

References

  1. lectotype designated by Linder, H. P. 1984. A phylogenetic classification of the genera of the African Restionaceae. Bothalia 15(1-2): 67.
  2. 1 2 Tropicos, Willdenowia Thunb.
  3. 1 2 3 Kew World Checklist of Selected Plant Families
  4. Tropicos, search for Spirostylis=
  5. Thunberg, Carl Peter. 1790. Kongliske Vetenskaps Academiens Nya Handlingar 11: 26
  6. Manning, John (2008). Field Guide to Fynbos. Cape Town: Struik Publishers. ISBN   9781770072657.
  7. 1 2 Dyer, R. Allen, The Genera of Southern African Flowering Plants”. ISBN   0 621 02854 1, 1975