Pontechium maculatum

Pontechium maculatum
	Pontechium maculatum
Systematics
	Asterids
	Euasterids I
Family :	Boraginaceae (Boraginaceae)
Subfamily :	Boraginoideae
Genre :	Pontechium
Type :	Pontechium maculatum
Scientific name of the genus
	Pontechium
	Böhle & Hilger
Scientific name of the species
	Pontechium maculatum
	( L. ) Böhle & Hilger

Pontechium maculatum is the only species of plant of the genus Pontechium in the family of the predatory plants (Boraginaceae).

description

inflorescence

Pontechium maculatum

Pontechium maculatum is a bristly hairy, upright, biennial plant that develops a single or multiple flower-bearing stems . It reaches a stature height of mostly 40 to 70 (30 to 100) cm. The basal and stem leaves are 55 to 100 mm long and 4 to 10 mm wide. Their shape is lanceolate to narrowly elliptical with a narrowed base; the hair consists of close-fitting, soft bristles.

The inflorescence is a spike-like thyrsus . The calyx is 5 to 6 mm long. The crown is 9 to 12 mm long, more or less funnel-shaped and dark red in color. Four to five stamens stand out from the crown, the stamens are red. The undivided stylus ends in a two-headed scar (magnifying glass).

The flowering period extends from May to June. The number of chromosomes is 2n = 24.

Systematics

The separation of the genus Echium is with different sequences of portions of the core - and plastids - DNA and that of all Natternkopf justified deviating TYPES two-headed rather than two-column scar.

Much used synonyms are Echium maculatum L. (valid name in the genus Echium ), Echium rubrum Jacq. and Echium russicum J.F. Gmel.

Occurrence and locations

Pontechium maculatum occurs in eastern Central Europe (South Moravia , Slovakia , Hungary) and in Southeastern Europe , in central Russia the distribution in the north extends to the 55th parallel . The total distribution area also includes Turkey and the Caucasus region . In Austria, Pontechium maculatum occurs very rarely in northern Burgenland ; this occurrence is threatened with extinction, but it cannot be ruled out that it is due to anointing .

It grows on steppe lawns, meadows, uncultivated slopes and in bushes.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f 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 .
↑ ^a ^b ^c ^d ^e T. G. Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X (English).
↑ Hartmut H. Hilger, Uta-Regina Böhle: Pontechium: a new genus distinct from Echium and Lobostemon (Boraginaceae). In: Taxon. Vol. 49, No. 4, 2000, pp. 737-746, JSTOR
^ ^A ^b Pontechium in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 19, 2020.

Web links

Commons : Pontechium maculatum - collection of images, videos and audio files

[ExkÖst3-1] ↑ ^a ^b ^c ^d ^e ^f 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 .

[FE3-2] T. G. Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X (English).

[Böhle-Hilger2000-3] Hartmut H. Hilger, Uta-Regina Böhle: Pontechium: a new genus distinct from Echium and Lobostemon (Boraginaceae). In: Taxon. Vol. 49, No. 4, 2000, pp. 737-746, JSTOR

[GRIN-4] A ^b Pontechium in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 19, 2020.