Sorbus decipiens

The Deceptive Bastard (Sorbus decipiens ), also referred to as Deceptive Whitebeam is a species in the complex of the bastard flour berries ( Sorbus latifolia agg. ).

Description

The Deceptive Bastard medlar is one to 10 (rarely to 20) meters high tree. The leaves are broadly ovate and measure 7-9 × 5-7 cm. Your widest point is located below the center. They have 4-5 pairs of triangular and rather short lobes, and 9 to 11 pair of side nerves. The underside has a brownish- yellow pubescence, but verkahlt in places, especially on the nerves. In autumn they are pretty rough, sawn rough and sharp. The elongate fruits are 12 mm thick and 14 to 16 millimeters long.

Dissemination

This species is endemic to the limestone soils on the Castle Hill at Walter Hausen in the district of Gotha, in Thuringia. Presumably, the climatic and geological isolation of the castle hill is the reason that this tribe is no spread.

System

The Deceptive Bastard Whitebeam was founded in 1810 first described by Bechstein as Pyrus decipiens. The classification in the genus Sorbus took place in 1864 by Irmisch. Today's Artauffassung goes back to the work of Düll 1961. In the meantime, the species was more broadly, Irmisch joined under the name Sorbus decipiens also the families from Arnstadt and Hedlund 1901 even families from England and France, on a similar understanding of this type the information in the Flora Europaea on deposits in France are believed to be due.

Endangering

At the time of first description by Bechstein, there were about 100 copies of deceptive bastard Whitebeam. Meanwhile, another 40 trees on the southern and south-western slope as well as some others on the height and on the west slope available. The IUCN lists this species as " critically endangered " because it occurs only at one location and there are only a few copies.