Ipomoea anisomeres
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Ipomoea anisomeres a plant is art from the genus of Morningglory ( Ipomoea ) from the family of wind plants (Convolvulaceae). The species is common in Mexico , Central and South America .
description
Ipomoea anisomeres is a twining plant, the stalk of which is herbaceous at least in the upper part, the older stems are clearly papilous . The simple, stalked, hairless leaves have an elongated egg-shaped to broadly egg-shaped leaf blade with a length of 2 to 14 cm and a width of 1.5 to 8.5 cm. The leaf blade is pointed or tapering to the front , the base is heart-shaped with more or less rounded or tapering lobes , the leaf margin is set with teeth at the base and at the tip of the blade. The leaf stalk is 3 to 6.5 cm long.
The flowers , which mostly bloom in October to April, but occasionally all year round , are grouped in hairless, umbel-shaped cymes with a 4 to 14 cm long inflorescence stalk . The flower stalks are up to 2.5 cm long, wrinkled, angled and slightly widened towards the top. The bracts are scale-like, hairless and only 1 mm long. The five hairless sepals are irregularly shaped: the outer ones are 1 to 3 mm long, circular to oblique oval; the inner ones are 8 to 10 mm long, elongated to ovoid, blunt and dry-skinned at the edges. The petals are fused into a 6 to 7 cm long, funnel-shaped crown. The coronet has a diameter of 7 to 8 cm. The edge is colored white, the throat turns into a lavender or purple color. The bud coverage is contortiplikat. The five stamens are unevenly shaped, do not protrude beyond the crown and have a length of (rarely only 8) 12 to 20 mm. The stamens start at the base of the corolla tube and are hairy in the lower part. The anthers are 4 to 5 mm long. The nectarium has five lobes. The ovary is ovoid, 2 to 2.5 mm wide and 2 to 3 mm long and glabrous. It has a 15 to 17 mm long stylus that ends in a scar consisting of two spherical parts .
The fruits are 10 to 11 mm long, popping capsule fruits without hair. They contain one to four brown, egg-shaped, downy-haired, 5 to 6 mm long seeds .
Occurrence
Ipomoea anisomeres is widespread in Mexico , Central and South America and grows there at altitudes between 0 and 50 m.
Systematics
For a long time the species was classified in the genus Ipomoea in a series Anisomerae in the subgenus Eriospermum . The species Ipomoea squamosa and Ipomoea lindenii were last included in this section ; the species were grouped together due to the unevenly formed sepals. However, various studies showed that this section does not show any natural relationships, so that Ipomoea anisomeres was assigned to the Eriospermum section .
swell
- Daniel F. Austin: Dissolution of Ipomoea Series Anisomerae (Convolvulaceae) . In: Journal of the Torrey Botanical Society , Vol. 124, No. 2, 1997. pp. 140-159.