Australluma

The plant genus Australluma belongs to the subfamily of milkweed plants ( Asclepiadoideae ) in the family of the dogbane family ( Apocynaceae ). This genus contains only two succulent species.

• 3.1 Notes and references

Description

Vegetative characteristics

Australluma species grow as perennial stem succulent plants. The succulent, only 3 to 5 mm wide, blue - green, cylindrical Stems are smooth, have four rounded edges and reach stature heights of 20 to 30 cm. They contain clear milky juice. There are formed underground, up to 8 mm thick rhizomes. It happens that all aboveground plant parts die and after the dry season again new aboveground shoot axes are formed.

The opposite, to succulent, egg-shaped, 1 mm long shed reduced leaves fall off early. The stipules are modified into egg-shaped glands.

Generative features

Distributed at the internodes on the shoot axis are pseudodoldige inflorescences with only one or two flowers without bracts. and flower stems are smooth. The odorless ( except for the related genera ) flowers are hermaphrodite, radial symmetry, fünfzählig with a double perianth. The five sepals are glabrous on both sides. The five 4-6 mm long petals are spread out flat with reflexed edges of the Corolla lobe and between one-quarter grown to half of its length uniformly distributed on the surface with 200 to 500 microns long hairs ( trichomes ). The inside of the petals is green with purple spots and the outside is solid green. The brownish corona is divided into staminale and interstaminale Nebenkrone. The upright pollinia are broadly ellipsoidal. There are two smooth, free, upper permanent carpels present. The head is white scars. It is made of nectar.

The usually paired together and standing are also at maturity not among overgrown follicles have blunt edges and slim.

The chromosome numbers be 2n = 22

Systematics and distribution

This species occurs only in the Capensis. Australluma peschii only thrive in summer rainfall areas in Namibia.

The genus Caralluma R.Br. In 1995, Darrel Charles Herbert Plowes in A reclassification of Caralluma R.Brown ( Stapelieae: Asclepiadaceae ). in Haseltonia, 3, 1995, pp. 49-70 divided into eight genera and the genus Australluma Plowes reorganized. Type species is Australluma peschii ( Nel ) Plowes.

The genus belongs to the subtribe Australluma Stapeliinae from the tribe Ceropegieae in the subfamily Asclepiadoideae within the family Apocynaceae.

There are currently two types of Australluma:

• Australluma peschii ( Nel ) Plowes ( Syn: Caralluma peschii Nel )
• Australluma ubomboensis (. I.Verd ) Bruyns ( Syn: Caralluma ubomboensis I.Verd, Pachycymbium ubomboensis ( I.Verd ) MGGilbert. . )

Swell

• Darrel Charles Herbert Plowes in A reclassification of Caralluma R.Brown ( Stapelieae: Asclepiadaceae ). in Haseltonia, 3, 1995
• Sigrid songs Schumann & Ulrich Meve: The Genera of Asclepiadoideae, Secamonoideae and Periplocoideae ( Apocynaceae ), 2006: The genus Australluma - Online at INTKEY databases of the DELTA system. (Section Description and systematics)
• Ulrich Meve & Sigrid songs Schumann: A molecular phylogeny and generic rearrangement of the stapelioid Ceropegieae ( Apocynaceae Asclepiadoideae ) in Pl Syst.. Evol. , 234, 2002, pp. 171-209.
• Ulrich Meve & Sigrid songs Schumann: Subtribal division of Ceropegieae ( Apocynaceae Asclepiadoideae ) in taxon, Volume 53, 2004, pp. 61-72.
• Peter V. Bruyns: .. Stapeliads of Southern Africa and Madagascar, 2005, 2 volumes totaling 606 pages: ISBN 1-919766-37-5 ISBN 1-919766-38-3 and