Anthotroche

Anthotroche is endemic in the southwestern Western Australia genus of flowering plants of the nightshade family (Solanaceae ). It consists of only three types.

Description

Vegetative characteristics

The Anthotroche species are 1.5 to 2.5 m tall shrubs that are occupied with a dense pubescence of glandular trichomes and nichtdrüsigen. The leaves are stalked with 5 to 20 mm long petioles, the leaf blades are ovate, circular, elliptical or obovate to narrowly inversely egg-shaped elliptical. They have a length of 7 to 35 mm and a width of 5 to 16 mm.

Flowers

The flowers appear singly or in clusters of two to six flowers, incurring occasionally provided with leaves pseudo-spikes. The flower stems are usually not available or can not be seen, only occasionally stems up to 15 mm is formed. The radiärsymmetrische calyx is 3-9 mm long, calyx lobes are the five most longer than the deformed part of the calyx. The crown is also radiärsymmetrische bell - up wheel-shaped and 6 to 13 mm long, their Kronlappen dense hair short and wide, and on the top.

The five stamens are equal multiform, also standing on the crown or not. The anthers consist of a theca, this is crescent -shaped or kidney-shaped, from 0.8 to 1 mm long. The filaments are sometimes bent inwardly, and about four times as long as the dust bag. At its lower starting point they are thickened and densely hairy.

Fruit and seeds

The fruits are ovoid to elliptical or nearly spherical, 3-8 mm long capsules that jump septum - fachspaltig have four chambers. The seeds are 2.3 to 3.3 mm long, the embryo is straight, short and thick.

Other properties

The base chromosome number is. The plants contain the alkaloids hyoscyamine, or mainly Norhyoscyamin and Apoatropin and scopolamine. In the species A. walcotti and A. myoporides also small amounts of an alkaloid called Aponoratropin were detected, what was the first detection of this substance in nature.

Occurrence

The genus grows endemic in an area comprising the dry inland areas of south-western Western Australia and extends partly up to the West Coast.

System

The genus consists of only three types:

• Anthotroche myoporides C. Gardener
• Anthotroche pannosa Endl.

The type species is A. pannosa.