Ipomoea eggersiana

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Ipomoea eggersiana
Systematics
Asterids
Euasterids I
Order : Nightshade (Solanales)
Family : Bindweed family (Convolvulaceae)
Genre : Morning glories ( ipomoea )
Type : Ipomoea eggersiana
Scientific name
Ipomoea eggersiana
Peter

Ipomoea eggersiana Peter (Syn .: Ipomoea eggersii (House) DF Austin ) is a plant type from the kind of morning glories ( Ipomoea ) from the family of wind plants (Convolvulaceae).

description

Ipomoea eggersiana is a twisting, slightly woody liana . It ramifies heavily from the base and contains a lot of milky juice . The roots are thickened into almost spherical tubers. The stems are cylindrical, slender, reddish brown in color and hairless. The leaves are alternately packed on short side shoots. The leaf blade is membranous, hairless, 6 to 15 mm long, 4 to 13 mm wide, kidney-shaped, lyre-shaped or lobed. Towards the front they are blunt and prickly, heart-shaped, cut off or rounded at the base. The leaf margin is curved. The upper side of the leaf is dark green, dull and hairless, the veins do not emerge. The underside is pale green, the midrib is thick and prominent. The leaf stalks are 5 to 30 mm long, hairless and slender.

The flowers stand individually at the ends of short shoots, they are accompanied by fine, elongated bracts . The calyx is pale green and does not enlarge when the fruit is ripe. The sepals are unevenly shaped, ovate to rounded and 5 to 6 mm long. The crown is funnel-shaped and 4 to 5 cm long. The corolla tube is green on the outside and white on the inside, the coronet is pink or pale purple, is covered with five blunt lobes and measures 3 to 4 cm in diameter. The stamens and the stigma are white in color and do not protrude beyond the crown.

The fruits are elliptical capsules that are about 1.5 cm long and light brown. They each contain four seeds , which are dark brown and about 6 mm long and have a tuft of long, silky hair on the edges.

distribution

The species occurs from Puerto Rico to the Virgin Islands.

literature

  • Pedro Acevedo-Rodríguez: Convolvulaceae . In: Vines and Climbing Plants of Puerto Rico and the Virgin Islands . Contributions from the United States National Herbarium, Volume 51, 2005. pp. 157-200.

Individual evidence

  1. ^ A b Rafaël Govaerts (ed.): Ipomoea - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on November 23, 2017.