Alchemilla sect. Coriaceae

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Alchemilla sect. Coriaceae
Systematics
Rosids
Eurosiden I
Order : Rose-like (rosales)
Family : Rose family (Rosaceae)
Genre : Lady's mantle ( Alchemilla )
Section : Alchemilla sect. Coriaceae
Scientific name
Alchemilla sect. Coriaceae
SEFröhner

Alchemilla sect. Coriaceae is one of the 13 European sections of the genus Lady's mantle ( Alchemilla ). Most of the species were earlier in the species group Alchemilla vulgaris agg. guided.

This section consists of hybrids between the sections Erectae , Ultravulgares and Pentaphylleae , so it has three parent sections . Their characteristics are composed of the characteristics of the parent sections.

features

The species of the section are large to small, mostly rather bare, soft plants of a gray-green color. Their main axis is often very thick and short-lived. They rarely grow as a subshrub. The stems are seldom transformed into monopodial renewal shoots.

The primary leaf is five-lobed, more rarely three-lobed and mostly deeper divided than in the Alchemilla section . The stipules are often similar to those of the Pentaphylleae section : they are often white and plump, their auricles with entire margins and round to pointed. They are often inserted about a millimeter apart on the petiole. The incision is often one to five millimeters deep, in some species it can be over ten millimeters deep. The leaf teeth are sometimes large or long. The vascular bundles in the petiole can be collateral and are usually not very sklerenchymatic .

The stem is usually ascending or prostrate. The stipules on the lowest stem leaf often resemble those of the basal leaves. In addition, they spread laterally, often sickle or tongue-like to laterally upright, and also have teeth.

The inflorescence is usually multi-flowered and reminiscent of the erectae section . It consists of up to 1000 flowers . In some species, however, it is narrow and arm-blooded. The individual monochasias are usually somewhat shamrock. The flowers are green to yellow and are often tinged with purple. The goblet often has a top-shaped shape, is mostly bare and, when ripe, is slightly narrowed at the top. The outer sepals are usually quite large, but very small or absent in a few species. The stamens start with a broad base that is up to 0.4 millimeters wide. The flower bears sometimes two instead of the usual one fruit sheet . The nuts often protrude far from the goblet.

The chromosomes are partly dumbbell-shaped in the species with coarse and / or few leaf teeth, which is a feature of the Pentaphylleae parent section.

distribution

The section occurs in Eurasia, whereby the distribution east of Central Asia is insufficiently known. There are also a few species in Greenland and North America.

The plants in the section are mostly hygrophil and vague . Most species are found in soils that are rather poor in nutrients. Many species occur in spring meadows and on the banks of smaller flowing waters, especially in the alpine and subalpine altitude range . Those species of the section that are similar in habitus to the section Pentaphylleae occur particularly on snow soils .

Systematics

The assignment of the species to the section follows Fröhner (1995), whereby changes to the section assignment and new species from Fischer (2008) have been adopted:

supporting documents

Unless specified under individual evidence, the article is based on the following documents:

  • Sigurd Fröhner: Alchemilla . In: Hans. J. Conert et al. a. (Ed.): Gustav Hegi. Illustrated flora of Central Europe. Volume 4 Part 2B: Spermatophyta: Angiospermae: Dicotyledones 2 (3). Rosaceae 2 . Blackwell 1995, p. 70. ISBN 3-8263-2533-8

Individual evidence

  1. ^ A b Manfred A. Fischer , Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol. 3rd, improved edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 , p. 489.