Alchemilla sect. Longicaules

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

Alchemilla sect. Longicaules is a section native to Africafrom the genus Lady's mantle ( Alchemilla ).

features

They are perennial , herbaceous plants or subshrubs. They have long-jointed stem axes that are monopodial or sympodial branched. They form vegetative and generative shoots. The vegetative shoots are long and have unlimited growth. They have alternating vegetative and flower zones. Dichasial inflorescences are located in the leaf axils of the flower zones . In the vegetative zones, vegetative shoots of a higher order branch off. In monopodial species all vegetative shoots are persistent, in sympodial species only the basal part of an annual growth is persistent, the rest soon dies. All types are diaxial.

The leaves are palmately lobed with five to seven lobes. The stipules are leaf-like and one third of their length fused with the petiole. On the other side, the two stipules are half to two thirds fused together. The free part of the stipules is toothed. In the bud , the young leaf blade is surrounded by its own tute .

The outer sepals are only slightly smaller than the sepals . The goblet is bare. There are one to two, rarely up to three carpels .

Systematics

The Longicaules section comprised 6 subsections according to Werner Rothmaler's system . In 2004, Notov reduced their size to two, and the remaining subsections are now run as separate sections. The neotype is Alchemilla elongata Eckl. et Zeyh.

The two subsections are:

  • Palustres : The plants are monopodial with long sprouts. The two stipules are three quarters fused together. The flower stalk is usually sticky. There is a carpel. The subsection is located in tropical East Africa.
  • Elongatae : The plants are sympodial with long sprouts. The two stipules are half fused together. The flower stalk is hairy. There are one to three carpels. The subsection is based in South Africa.

supporting documents

  • Alexander A. Notov, Tatyana V. Kusnetzova: Architectural units, axiality and their taxonomic implications in Alchemillinae . Wulfenia 11, 2004, pp. 85-130. ISSN  1561-882X