Grahamia bracteata

Grahamia bracteata
	Grahamia bracteata
Systematics
	Eudicotyledons
	Nuclear eudicotyledons
Order :	Clove-like (Caryophyllales)
Family :	Anacampserotaceae
Genre :	Grahamia
Type :	Grahamia bracteata
Scientific name of the genus
	Grahamia
	Gillies ex Hook.
Scientific name of the species
	Grahamia bracteata
	Gillies ex Hook.

Grahamia bracteata is the only plant species of the monotypical genus Grahamia from the family of Anacampserotaceae . The botanical name of the genus honors the Scottish doctor and botanist Robert Graham (1786–1845).

description

Grahamia bracteata grows as a few branches, luxuriant rampant shrub . The smooth, stiff shoots are up to 1 meter long and arise from swollen, fleshy taproots . The sometimes overhanging shoot tips take root when they come into contact with the ground. The initially scattered, opposite leaves are later alternate and have axillary short shoots. Your half-petiole to petiole-round, linear and bluntly rounded leaf blade is up to 25 millimeters long and measures 2.5 millimeters in diameter. Your leaf axils are very slightly hairy.

The individual flowers appear near the shoot tips and are provided with eight to nine brick-like, elongated to lanceolate, stiff, parchment-like, whitish bracts . The elongated to lanceolate, stiff sepals resemble the bracts. Their white petals are obovate and have an attached tip. There are about 40 stamens .

In the elongated, leathery capsule fruits , exocarp and endocarp do not separate. The brown speckled, flattened, 4 millimeter long seeds contained in them have broad, paper-like wings and bristles.

The number of chromosomes is . ${\ displaystyle 2n = 18}$

Systematics and distribution

Grahamia bracteata is common in central and northern Argentina . The first description was in 1833 by William Jackson Hooker .

proof

literature

Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 413 .

Individual evidence

^ WJ Hooker, GAW Arnott: Contributions towards a Flora of South America an the Island of the Pacific . In: Botanical Miscellany . Volume 3, London 1833, pp. 331-332 (online) .

Web links

Commons : Grahamia bracteata - collection of images, videos and audio files

[1] WJ Hooker, GAW Arnott: Contributions towards a Flora of South America an the Island of the Pacific . In: Botanical Miscellany . Volume 3, London 1833, pp. 331-332 (online) .