Anchusella

Anchusella
	Anchusella cretica
Systematics
	Asterids
	Euasterids I
Family :	Boraginaceae (Boraginaceae)
Subfamily :	Boraginoideae
Tribe :	Boragineae
Genre :	Anchusella
Scientific name
	Anchusella
	Bigazzi , E. Nardi & Selvi

Anchusella is a plant genus , the family of the Boraginaceae belongs (Boraginaceae). It is represented by two species in the central-eastern Mediterranean region .

description

Vegetative characteristics

The Anchusella species are annual , herbaceous plants . The above-ground parts of the plant have a curly hair . The up to 50 cm long stems are prostrate-ascending to ascending, rarely erect. The bristly hairy basal leaves are often dried up during flowering. The sessile, increasingly smaller stem leaves are triangular-egg-shaped, toothed and also bristle-haired with transparent, stiff trichomes , which have a whitish thickening at the base and are mainly distributed along the leaf edges and the leaf veins.

Generative characteristics

The terminal, unbranched inflorescence is a multi-flowered double wrap . The 1 to 3 mm long stalked flowers are in the axils of egg-shaped, pointed, bristly hairy, often purple overflowing bracts , which in the lower part of the inflorescence reach half the length of the calyx and extend to 7 to 8 mm when the fruit is ripe .

The hermaphrodite flowers are fivefold. The calyx is divided almost to the base into five narrow triangular, 6 to 8.5 mm long, bristle-haired, purple-overflowing tips. The zygomorphic crown consists of a straight to slightly curved, 6 to 7 mm long tube and a crooked edge with uneven, 6 to 8 mm long corolla lobes. The corolla tube has five hairy throat scales.

The androeceum consists of three stunted staminodes and two large fertile stamens , which are located on the ventral side in the upper part of the corolla tube and reach the base of the pharyngeal scales. The stamens are compressed and widened at the base. The 1.5 to 1.7 mm long, light purple anthers are inserted with their upper third on the stamens.

The gynobasische properties at the base of Klausen stylus is slightly curved and ends in a compressed scar , which consists of two obliquely truncated, more or less acute, with the papillae is densely covered cloth. The Klaus fruit disintegrates into four partial fruits covered with unicellular papillae, the attachment point of which has only a thin edge.

Both species are diploid with a chromosome number of 2n = 16.

Systematics

Anchusella variegata

The genus Anchusella is in the tribe Boragineae of the subfamily Boraginoideae within the family of predatory plants (Boraginaceae). The two species originally assigned to Lycopsis or a broad genus Anchusa were separated in 1965 by Werner Greuter within Anchusa as the subgenus Rivinia . On the basis of micro- and macromorphological investigations, the results of which are in agreement with later molecular systematic investigations, they were given the rank of genus Anchusella in 1997 by Massimo Bigazzi, Enio Nardi and Frederico Selvi .

Cretan ox tongue ( Anchusella cretica (Mill.) Bigazzi, E. Nardi & Selvi , Syn .: Anchusa cretica Mill. ): It occurs in Italy and along the coasts of the Adriatic Sea and the Ionian Sea on the western side of the Balkan Peninsula from Istria to southern Peloponnese .
Colorful ox tongue ( Anchusella variegata (L.) Bigazzi, E. Nardi & Selvi , Syn .: Anchusa variegata (L.) Lehm. ): It is endemic to southern Greece with a focus on Attica , the Peloponnese , western Crete and on the western Cyclades , in the north on the Ionian coast to Corfu , in the Aegean Sea to the north coast, on the East Aegean islands on the islands of Kalymnos and Leros .

swell

Individual evidence

^ ^A ^b ^c ^d ^e Massimo Bigazzi, Enio Nardi, Frederico Selvi: Anchusella, a new genus of Boraginaceae from the Central-Eastern Mediterranean . In: Plant Systematics and Evolution . tape 205 , no. 3-4 , 1997, pp. 241-264 , doi : 10.1007 / BF01464408 (English).
^ ^A ^b Werner Greuter: Contributions to the flora of the South Aegean 6. An interesting problem: Lycopsis variegata L. In: Candollea 20, 1965: 192–210.
^ HH Hilger, F. Selvi, A. Papini, M. Bigazzi: Molecular Systematics of Boraginaceae Tribe Boragineae Based on ITS1 and trnL Sequences, with Special Reference to Anchusa s. l. In: Annals of Botany . tape 94 , no. 2 , 2004, p. 201–212 (English, PDF 175.5 kB ).
^ ^A ^b Peter Schönfelder , Ingrid Schönfelder: The new cosmos Mediterranean flora. Franckh Kosmos Verlag Stuttgart 2008. ISBN 978-3-440-10742-3 . P. 138.
↑ Arne Strid, Barbro Strid: Flora Graeca Sibthorpiana, Volumes 1-2. Annotated re-issue. Gantner, Ruggell, 2009, ISBN 978-3-906166-70-4 , p. 358.

Web links

Commons : Anchusella - collection of images, videos and audio files

[Bigazzi1997-1] A ^b ^c ^d ^e Massimo Bigazzi, Enio Nardi, Frederico Selvi: Anchusella, a new genus of Boraginaceae from the Central-Eastern Mediterranean . In: Plant Systematics and Evolution . tape 205 , no. 3-4 , 1997, pp. 241-264 , doi : 10.1007 / BF01464408 (English).

[Greuter1965-2] A ^b Werner Greuter: Contributions to the flora of the South Aegean 6. An interesting problem: Lycopsis variegata L. In: Candollea 20, 1965: 192–210.

[Hilger2004-3] HH Hilger, F. Selvi, A. Papini, M. Bigazzi: Molecular Systematics of Boraginaceae Tribe Boragineae Based on ITS1 and trnL Sequences, with Special Reference to Anchusa s. l. In: Annals of Botany . tape 94 , no. 2 , 2004, p. 201–212 (English, PDF 175.5 kB ).

[Schönfelder2008-4] A ^b Peter Schönfelder , Ingrid Schönfelder: The new cosmos Mediterranean flora. Franckh Kosmos Verlag Stuttgart 2008. ISBN 978-3-440-10742-3 . P. 138.

[FloraGraeca-5] Arne Strid, Barbro Strid: Flora Graeca Sibthorpiana, Volumes 1-2. Annotated re-issue. Gantner, Ruggell, 2009, ISBN 978-3-906166-70-4 , p. 358.