Delosperma

Delosperma congestum

Delosperma is a plant genus of the family of Mesembryanthemum plants ( Aizoaceae ). The botanical name of the genus is derived from the Greek words delos for 'open' and cum for seeds ' and refers to the fact that the seeds are visible in the opened capsules.

Description

The species of the genus Delosperma grow shrubby, rarely form nests are crawling or compact. Often, a taproot is formed, arise from the new branches. The internodes are papillose or smooth. Their fleshy leaves feel when you touch soft. They are flat to drehrund, usually more or less semi-circular with a concave up rinnigen top and a rounded convex base. There are bladder cells of different shape, size and density available. The stomata are not sunken in the leaf surface, although they are occasionally obscured by large, densely arranged bladder cells.

The flowers appear singly, but mostly available in large dichasialen inflorescences, often in cymes trained each year, together. The individual flowers are separated by more or less long internodes. There are trained five very unequal sepals. The petals are narrow to spoon-shaped. They are arranged in one to four groups. The color of the petals varies from white to pink, purple, yellow, salmon pink, orange and rust. They are rarely scarlet, karminfarben or wine colors. Filamentous staminodes are present. The nectary consists of five separate glands. The flowering period extends from spring to midsummer. The flowers open in the morning and close at night.

The fünffächrigen, pale-colored, hygrochastischen fruit capsules are funnel-shaped at the base, but the subjects are flat. Most are wide wing flaps and slats parallel source, but no partitions ceilings and no closing body available ( capsules from Delosperma type). The fruits contain mostly brown, spherical, smooth or papillary seeds.

Systematics and distribution

The genus Delosperma is widespread in eastern Botswana, Eritrea, Ethiopia, Kenya, Lesotho, Madagascar, east of Mozambique, Réunion, in Saudi Arabia, central and eastern South Africa, Swaziland, Tanzania, Yemen and in the south of Zimbabwe. The species usually grow in summer rainfall areas where fall annually usually rainfall of more than 400 millimeters.

The first description of the genus by Nicholas Edward Brown was published in 1925. The type species is Delosperma echinatum. The genus Delosperma include the following types:

• Delosperma aberdeenense L.Bolus
• Delosperma abyssinicum ( usually ) Schwantes
• Delosperma acocksii L.Bolus
• Delosperma acuminatum L.Bolus
• Delosperma adelaidense Lavis
• Delosperma aereum ( L.Bolus ) L.Bolus
• Delosperma affine Lavis
• Delosperma aliwalense L.Bolus
• Delosperma alpinum ( NEBr. ) SAHammer & APDold
• Delosperma alticola L.Bolus
• Delosperma annulare L.Bolus
• Delosperma ashtonii L.Bolus
• Delosperma asperulum ( Salm- Dyck ) L.Bolus
• Delosperma basuticum L.Bolus
• Delosperma bosserianum Marais
• Delosperma brevipetalum L.Bolus
• Delosperma brevisepalum L.Bolus
• Delosperma brunnthaleri ( A.Berger ) Schwantes in H.Jacobsen
• Delosperma burtoniae L.Bolus
• Delosperma caespitosum L.Bolus
• Delosperma calitzdorpense L.Bolus
• Delosperma calycinum L.Bolus
• Delosperma carolinense N.E.Br.
• Delosperma carterae L.Bolus
• Delosperma clavipes Lavis
• Delosperma cloeteae Lavis
• Delosperma concavum L.Bolus
• Delosperma congestum L.Bolus
• Delosperma cooperi ( Hook.f. ) L.Bolus
• Delosperma crassuloides ( Haw. ) L.Bolus
• Delosperma crassum L.Bolus
• Delosperma cronemeyerianum ( A.Berger ) H.Jacobsen ex HEKHartmann
• Delosperma davyi N.E.Br.
• Delosperma deilanthoides S.A.Hammer
• Delosperma deleeuwiae Lavis
• Delosperma denticulatum L.Bolus
• Delosperma dunense L.Bolus
• Delosperma dyeri L.Bolus
• Delosperma echinatum ( Lam.) Schwantes
• Delosperma ecklonis ( Salm- Dyck ) Schwantes
• Delosperma erectum L.Bolus
• Delosperma esterhuyseniae L.Bolus
• Delosperma ficksbergense Lavis
• Delosperma floribundum L.Bolus
• Delosperma framesii L.Bolus
• Delosperma fredericii Lavis
• Delosperma frutescens L.Bolus
• Delosperma galpinii L.Bolus
• Delosperma gautengense H.E.K.Hartmann
• Delosperma gerstneri L.Bolus
• Delosperma giffenii Lavis
• Delosperma gracile L.Bolus
• Delosperma gramineum L.Bolus
• Delosperma grantiae L.Bolus
• Delosperma guthriei Lavis
• Delosperma harazianum ( Deflers ) Poppend. & Ihlenf.
• Delosperma herbeum ( N.E.Br. ) N.E.Br.
• Delosperma hirtum ( N.E.Br. ) Schwantes
• Delosperma hollandii L.Bolus
• Delosperma imbricatum L.Bolus
• Delosperma inaequale L.Bolus
• Delosperma incomptum ( Haw. ) L.Bolus
• Delosperma inconspicuum L.Bolus
• Delosperma intonsum L.Bolus
• Delosperma invalidum ( N.E.Br. ) H.E.K.Hartmann
• Delosperma jansei N.E.Br.
• Delosperma karrooicum L.Bolus
• Delosperma katbergense L.Bolus
• Delosperma klinghardtianum ( Dinter ) Dinter & Schwantes
• Delosperma knox daviesii Lavis
• Delosperma kofleri Lavis
• Delosperma lavisiae L.Bolus
• Delosperma laxipetalum L.Bolus
• Delosperma lebomboense ( L.Bolus ) Lavis
• Delosperma leendertziae N.E.Br.
• Delosperma leightoniae Lavis
• Delosperma liebenbergii L.Bolus
• Delosperma linear L.Bolus
• Delosperma littoral ( Kensit ) L.Bolus
• Delosperma lootsbergense Lavis
• Delosperma luckhoffii L.Bolus
• Delosperma luteum L.Bolus
• Delosperma lydenburgense L.Bolus

• Delosperma macellum ( N.E.Br. ) N.E.Br.
• Delosperma macrostigma L.Bolus
• Delosperma mahonii ( N.E.Br. ) N.E.Br.
• Delosperma mariae L.Bolus
• Delosperma maxwellii L.Bolus
• Delosperma monanthemum Lavis
• Delosperma muirii L.Bolus
• Delosperma multiflorum L.Bolus
• Delosperma nakurense ( Engl ) A.G.J.Herre
• Delosperma napiforme ( N.E.Br. ) Schwantes
• Delosperma neethlingiae ( L.Bolus ) Schwantes
• Delosperma nelii L.Bolus
• Delosperma nubigenum ( Schltr. ) L.Bolus
• Delosperma obtusum L.Bolus
• Delosperma oehleri ​​( Engl ) A.G.J.Herre
• Delosperma ornatulum N.E.Br.
• Delosperma pachyrhizum L.Bolus
• Delosperma pageanum ( L.Bolus ) Schwantes
• Delosperma pallidum L.Bolus
• Delosperma parviflorum L.Bolus
• Delosperma pater soniae ( L.Bolus ) L.Bolus
• Delosperma peersii Lavis
• Delosperma peglerae L.Bolus
• Delosperma pilosulum L.Bolus
• Delosperma platysepalum L.Bolus
• Delosperma pondoense L.Bolus
• Delosperma Pontii L.Bolus
• Delosperma pottsii ( L.Bolus ) L.Bolus
• Delosperma prasinum L.Bolus
• Delosperma pubipetalum L.Bolus
• Delosperma purpureum H.E.K.Hartmann
• Delosperma repens L.Bolus
• Delosperma reynoldsii Lavis
• Delosperma rileyi L.Bolus
• Delosperma robustum L.Bolus
• Delosperma rogersii ( Schönland & A.Berger ) L.Bolus
• Delosperma roseopurpureum Lavis
• Delosperma saturatum L.Bolus
• Delosperma sawdahense H.E.K.Hartmann
• Delosperma saxicola Lavis
• Delosperma scabripes L.Bolus
• Delosperma schimperi ( Engl ) HEKHartmann & Niesler
• Delosperma smytheae L.Bolus
• Delosperma sphalmanthoides S.A.Hammer
• Delosperma Stena drum L.Bolus
• Delosperma steytlerae L.Bolus
• Delosperma subclavatum L.Bolus
• Delosperma subincanum ( Haw. ) Schwantes
• Delosperma subpetiolatum L.Bolus
• Delosperma sulcatum L.Bolus
• Delosperma sutherlandii ( Hook.f. ) N.E.Br.
• Delosperma suttoniae Lavis
• Delosperma testaceum ( Haw. ) Schwantes
• Delosperma tradescantioides ( A.Berger ) L.Bolus
• Delosperma truteri Lavis
• Delosperma uitenhagense L.Bolus
• Delosperma uncinatum L.Bolus
• Delosperma uniflorum L.Bolus
• Delosperma vandermerwei L.Bolus
• Delosperma velutinum L.Bolus
• Delosperma verecundum L.Bolus
• Delosperma Vernicolor L.Bolus
• Delosperma versicolor L.Bolus
• Delosperma vinaceum ( L.Bolus ) L.Bolus
• Delosperma virens L.Bolus
• Delosperma vogtsii L.Bolus
• Delosperma waterbergense L.Bolus
• Delosperma wethamae L.Bolus
• Delosperma wilmaniae Lavis
• Delosperma wiumii Lavis
• Delosperma zeederbergii L.Bolus
• Delosperma zoeae L.Bolus
• Delosperma zoutpansbergense L.Bolus

Delosperma sensu lato includes the genera Corpuscularia and Hartmanthus.

Botanical history

There have been several attempts to structure the genus Delosperma infra generic. Louisa Bolus put 1927 on the subgenus Euryphyllum, in which they presented only the way Delosperma tradescantioides. Mary Lavis 1966 different five groups without taxonomic rank, which she described as Angustifolia, Planifolia, cymosa, carinata and Compressilatera. Three years later, she went a step further and divided the genus into 29 sections, of which she, however, only three valid described.

Evidence