Lampranthus

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Lampranthus
Lampranthus glaucoides 3.jpg
Lampranthus glaucoides
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Aizoaceae
Subfamily: Ruschioideae
Tribe: Ruschieae
Genus: Lampranthus
N.E.Br. [1]
Type species
Lampranthus multiradiatus
(Jacq.) N.E.Br. [1]
Species

See text

Synonyms [2]
  • EsterhuyseniaL.Bolus
  • Roosiavan Jaarsv.

Lampranthus is a genus of succulent plants in the family Aizoaceae, which are native to Namibia and the Cape Provinces of South Africa in southern Africa. [2]

Contents

Description

The genus name "Lampranthus" means "shining-flowers" in Greek, and the species of this genus have unusually large, bright flowers, of a range of colours (sometimes even bi-coloured), that usually appear in summer, and frequently cover the plants entirely.

The species of this genus typically have long, smooth, elongated, succulent leaves. These can be triangular or cylindrical, and like all plants in its family, appear in opposite pairs on the shrubs' branches. [3]

Lampranthus can be clearly distinguished from related genera by its seed capsules. The seed capsules of all of these genera have triangular valves, which open when they become wet, exposing the seed chambers (locules). In contrast to Ruschia , each valve in a Lampranthus capsule has two wings, on either side of it, but no visible closing body. Unlike in Delosperma , the seeds in Lampranthus seed chambers are partially covered by a covering membrane. Lampranthus seeds sometimes have visible stalks too.

Reproduction

Lampranthus multiradiatus Starr 061204-1844 Lampranthus roseus.jpg
Lampranthus multiradiatus
Lampranthus flowers often cover the entire plant. Lampranthus sp6 (3).JPG
Lampranthus flowers often cover the entire plant.
Typical flower and leaf shape of genus Starr 070308-5519 Lampranthus sp..jpg
Typical flower and leaf shape of genus
A field of Lampranthus multiradiatus (the "mini ice plant") Starr 980602-4412 Lampranthus roseus.jpg
A field of Lampranthus multiradiatus (the "mini ice plant")
Lampranthus sp5 (2).JPG
Starr 080117-2149 Lampranthus sp..jpg

All Lampranthus species flower between June and August (in the Northern Hemisphere) with flower colours including red, orange, peach, yellow and light pink through to magenta and purple. They are pollinated by many insects, such as bees, wasps and beetles.

Species

As of January 2024, Plants of the World Online accepted the following species: [2]

Distribution

These plants are mainly found in Southern Africa, especially in arid areas, such as the Fynbos habitats.

Phytochemistry

L. aureus and L. spectabilis contain mesembrenol and low levels of related alkaloids such as mesembrenone [4] and have sometimes been mismarketed as kanna ( Mesembryanthemum tortuosum ) extract which contains higher levels of related alkaloids.[ citation needed ]

References

  1. 1 2 Gard. Chron. ser. 3, 87: 71. 1930 [25 Jan 1930] "Plant Name Details for Genus Lampranthus". IPNI . Retrieved December 16, 2009. Type Name: L. multiradiatus (N. J. Jacquin) N. E. Brown (Mesembryanthemum multiradiatum N. J. Jacquin) Remarks: nom. cons.
  2. 1 2 3 "Lampranthus N.E.Br." Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 2024-01-06.
  3. J. Manning: Field Guide to Fynbos. Struik, 2007. p.330.
  4. Smith, Michael T.; Field, Courtney R.; Crouch, Neil R.; Hirst, Manton (1998). "The Distribution of Mesembrine Alkaloids in Selected Taxa of the Mesembryanthemaceae and their Modification in the Sceletium Derived 'Kougoed'". Pharmaceutical Biology. 36 (3): 173–179. doi:10.1076/phbi.36.3.173.6350.