Argyroderma

Argyroderma is a genus consisting of over 50 species[2] of succulents in the iceplant family from South Africa.[3]

Argyroderma
Argyroderma fissum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Aizoaceae
Subfamily: Ruschioideae
Tribe: Ruschieae
Genus: Argyroderma
N.E.Br.[1]
Species

See text

Description
Argyroderma testiculare in cultivation

These distinctive plants are among those known as "living stones", because their highly succulent, usually stemless, blue-green leaves occur at ground level and can resemble small stones. They form small clumps of a few or many paired, usually cylindrical to egg-shaped leaves that are cleft in the center. Each stem bears just 2 leaves per season but may produce offsets over the years. In some species the old leaves persist and form a short column on which new leaves develop. Solitary daisy-like flowers, usually white, yellow, or purple, appear in the cleft.[3]

Distribution

The entire genus is naturally confined to a relatively small region in the far west of South Africa, known locally as the "Knersvlakte" area. This is a very arid region of winter-rainfall desert and rocky quartzite sands.

Cultivation

Like most succulents, they require extremely well-drained soil, and are damaged by repeated frosts. Their preferred mode of cultivation is a bright and sunny position with gritty free-draining soil. They may be propagated from seed, or careful division of established clumps.[3]

Selected species

Argyroderma angustipetelum L.Bolus
Argyroderma aureum L.Bolus
Argyroderma australe L.Bolus
Argyroderma blandum L.Bolus
Argyroderma boreale L.Bolus
Argyroderma braunsii Schwantes
Argyroderma brevipes L.Bolus
Argyroderma brevitubum L.Bolus
Argyroderma carinatum L.Bolus
Argyroderma citrinum L.Bolus
Argyroderma congregatum L.Bolus
Argyroderma crateriforme N.E.Br.
Argyroderma cuneatipetalum L.Bolus
Argyroderma delaetii C.A.Maass
Argyroderma densipetalum
L.Bolus
Argyroderma duale N.E.Br.
Argyroderma fissum L.Bolus
Argyroderma formosum L.Bolus
Argyroderma gregarium L.Bolus
Argyroderma hallii L.Bolus
Argyroderma hutchinsonii L.Bolus
Argyroderma jacobsenianum Schwantes
Argyroderma kleijnhansii L.Bolus
Argyroderma latifolium L.Bolus
Argyroderma latipetalum L.Bolus
Argyroderma leucanthum L.Bolus

  

Argyroderma litorale L.Bolus
Argyroderma longipes L.Bolus
Argyroderma luckhoffii L.Bolus
Argyroderma margaritae N.E.Br.
Argyroderma necopinum N.E.Br.
Argyroderma nortieri L.Bolus
Argyroderma octophyllum Schwantes
Argyroderma orientale L.Bolus
Argyroderma ovale L.Bolus
Argyroderma patens L.Bolus
Argyroderma peersii L.Bolus
Argyroderma planum L.Bolus
Argyroderma productum L.Bolus
Argyroderma pulvinare L.Bolus
Argyroderma reniforme L.Bolus
Argyroderma ringens L.Bolus
Argyroderma rooipanense L.Bolus
Argyroderma roseatum N.E.Br.
Argyroderma schlechteri Schwantes
Argyroderma schuldtii Schwantes ex Jacobsen
Argyroderma speciosum L.Bolus
Argyroderma splendens L.Bolus
Argyroderma strictum L.Bolus
Argyroderma subalbum N.E.Br.
Argyroderma subrotundum L.Bolus
Argyroderma testiculare N.E.Br.
Argyroderma theartii van Jaarsv.
Argyroderma villetii L.Bolus
List source :[2]
gollark: Bell Labs wanted to make better amplifiers, and physics™ implied that semiconductor things of some sort would allow this, so after some cycles of testing and improving theories they got basic transistors.
gollark: Transistors were invented circa 1950 as a replacement for vacuum tubes.
gollark: They are slow, big and loud however.
gollark: If you have wire and some coils you can build relays, which are also current switched switches.
gollark: Relays, yes, ish.

References
  1. Gard. Chron. 1922, Ser. III. lxxi. 92."Plant Name Details for Genus Argyroderma N.E.Br". IPNI. Retrieved December 19, 2009.
  2. "Plant Name Query Results for Genus Argyroderma". IPNI. Retrieved December 19, 2009.
  3. Lord, Tony (2003). Flora : The Gardener's Bible : More than 20,000 garden plants from around the world. London: Cassell. ISBN 0-304-36435-5.
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