Drosera gibsonii

Drosera gibsonii is a carnivorous plant in the genus Drosera. It belongs to the dwarf Sonnentauen and was first described in November 2007.

Description

Drosera gibsonii is a perennial, herbaceous plant with fine, fibrous root system. The rosette growing species reached a diameter of up to 1.25 inches and a height of up to 4 inches. The shoot axis is covered with withered leaves of the previous season, only at the top, there are six to twelve living leaves. The leaf blades are narrow elliptic, up to 3 mm long and 1.5 mm wide, the petioles are up to 5 mm long and reach at the base has a width of 0.75 millimeters, 0.5 millimeters at the furthest point.

The formed of stipules, studded with hair bud is up to 7 mm long and has a diameter of 5 millimeters. The stipules are three-lobed, up to 6.5 mm long and 3 mm wide, the middle lobe is divided into 4 sections. The Brutschuppen formed in the center are 1.5 mm long, 1.2 mm wide and 0.75 mm thick.

The flower stalk is up to 3 inches long and filled with tiny, short-stalked glands. The inflorescence is a wrap from seven to twelve flowers on too occupied with short-stalked glands and approximately 1.5 millimeters long pedicles. The 2.5 millimeters long and 1.5 millimeters wide sepals are covered with short-stalked glands, ovate, serrated and at the top as canceled. The egg-shaped, tapering slightly at the tip petals are pink to purple, 8 mm long and 5 mm wide. The fruit stand upright.

The ovary is spherical with 1 millimeter in diameter. The three pens are purple and up to 3.5 mm long, the club-shaped scar is white translucent. The five stamens are pink to purple, 5 mm long, anthers and pollen yellow. Bloom time is from November to December.

Distribution, habitat and status

From Drosera gibsonii only a single population in the Stirling Range National Park in the south west of Western Australia is known; its exact location is kept secret for reasons of conservation. It thrives there on laterite between Allocasuarina in open heathland on a hill, at 400 meters.

The species is in Western Australia currently classified as Priority Two, one level for taxa which, though little known and very rarely, in which, however, not regarded as a current threat.

System

Specimens of Drosera gibsonii have already been collected in 1991 and 1994, only Phill man but realized after a own collection in 2006 its position as stand-alone article in 2007 he published the first description; with the specific epithet honoring Robert Gibson, a specialist in the kind sun.

Drosera gibsonii is a dwarf sundew and, as such, to the section Bryastrum in the subgenus Drosera. The morphologically closest to their kind is Drosera silvicola.

Evidence

• Phill man: Drosera gibsonii ( Droseraceae ), a new Pygmy Drosera from south -west Western Australia, in: Nuytsia 16 (2 ), 2007, pp. 321-323, (PDF online )