Ipomoea linosepala

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Ipomoea linosepala
Systematics
Asterids
Euasterids I
Order : Nightshade (Solanales)
Family : Bindweed family (Convolvulaceae)
Genre : Morning glories ( ipomoea )
Type : Ipomoea linosepala
Scientific name
Ipomoea linosepala
Hallier f.

Ipomoea linosepala is a plant type from the genus of Morningglory ( Ipomoea ) from the family of wind plants (Convolvulaceae). The species is common in Africa .

description

Ipomoea linosepala is an upright, perennial , herbaceous plant , strongly branched from the base , which forms a thickened, spindle-shaped, woody root as a perennial organ. The branches are up to 1.5 m long and, like the leaves, are densely haired with long, protruding, yellowish trichomes . The leaf stalks reach a length of up to 5 mm. The leaf blade is 1.5 to 5 cm long, 2.2 to 3 cm wide, egg-shaped and is more or less inversely lanceolate to inversely ovate. The leaves are short-pointed or blunt at the tip, blunt to almost pointed at the base.

The flowers stand individually in the axils of the upper leaves. The flower stalks are 5 to 15 mm long and densely decorated. The bracts are linear-awl-shaped and up to 14 mm long, they are densely hairy and stand directly below the flower. The sepals are linear-lanceolate in the lower area, upwards they become linear awl-shaped. They are up to 18 mm long and are similar to the young sprouts closely ciliate. The crown is funnel-shaped-bell-shaped, pink to creamy-white with a purple center. They are 2 to 3.5 mm long, the upper part of the central axis of the petals is hairy.

The fruits are almost spherical capsules , they contain blackish, finely hairy seeds .

distribution

The species occurs from Nigeria to Tanzania and in southern tropical Africa. It grows in woodland and mountain forests at altitudes between 1280 and 1550 m.

Systematics

There are five subspecies:

  • Ipomoea linosepala subsp. alpina (Rendle) Lejoly & Lisowski : It occurs from Nigeria to Tanzania and southern tropical Africa.
  • Ipomoea linosepala subsp. auroargentea Duvigneaud & Dewit. : It occurs only in the Democratic Republic of the Congo.
  • Ipomoea linosepala subsp. Kundelungensis Lejoly & Lisowski : It occurs only in the Democratic Republic of the Congo.
  • Ipomoea linosepala subsp. linosepala : It occurs from the southern Democratic Republic of the Congo to southern tropical Africa.
  • Ipomoea linosepala subsp. upembensis Lejoly & Lisowski : It occurs only in the Democratic Republic of the Congo.

literature

  • Maria Leonor Gonçalves: Convolvulaceae . In: Edmund Launert (Ed.): Flora Zambesiaca (Volume 8, Part 1). Kew Publ., London 1987, ISBN 0-95076-822-7 .

Individual evidence

  1. ↑ a b c d e f g Rafaël Govaerts (Ed.): Ipomoea linosepala. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved November 24, 2018.