Geissoloma

Last updated

Geissoloma
Geissoloma Lignaut 2.jpg
Geissoloma Lignaut 1.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Crossosomatales
Family: Geissolomataceae
A.DC. [1]
Genus: Geissoloma
Lindl. ex Kunth
Species:
G. marginatum
Binomial name
Geissoloma marginatum
(L.) Juss.

Geissoloma is a genus of flowering plants in the monotypic family Geissolomataceae, native to the Cape Province of South Africa. [2] Geissoloma marginatum is the only species in the family. [3] It is sometimes called guyalone in English. The plants are xerophytic evergreen shrubs and are known to accumulate aluminum. [4]

Contents

Description

Geissoloma marginatum is a low evergreen shrub of ½-1¼ m high, covered in overlapping large, leathery, simple, scale-like, opposite leaves in four rows along the stems. It has very small stipules on the petioles. Flowers are bisexual, subtended by bracts, and have four red to pinkish petaloid sepals, four petals partially united, eight stamens, and four carpels. The fruit is a capsule with four seeds. [5]

Phylogeny

Recent phylogenetic analysis resulted in the following tree. [6]

Geissoloma

family  Strasburgeriaceae

Ixerba

Strasburgeria

Related Research Articles

<span class="mw-page-title-main">Rosids</span> Large clade of flowering plants

The rosids are members of a large clade of flowering plants, containing about 70,000 species, more than a quarter of all angiosperms.

<i>Sarcococca</i> Genus of flowering plants

Sarcococca is a genus of 11 species of flowering plants in the box family Buxaceae, native to eastern and southeastern Asia and the Himalayas. They are slow-growing, monoecious, evergreen shrubs 1–2 m (3–7 ft) tall. The leaves are borne alternately, 3–12 cm long and 1–4 cm broad.

The APG II system of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Group. It was a revision of the first APG system, published in 1998, and was superseded in 2009 by a further revision, the APG III system.

<i>Aphloia</i> Monotypic genus of flowering plants

Aphloia is a genus of flowering plants that contains a single species, Aphloia theiformis, the sole species of the monogeneric family Aphloiaceae. It is a species of evergreen shrubs or small trees occurring in East Africa, Madagascar, the Mascarene Islands and the Seychelles.

<i>Rhodiola</i> Genus of flowering plants

Rhodiola is a genus of perennial plants in the family Crassulaceae that resemble Sedum and other members of the family. Like sedums, Rhodiola species are often called stonecrops. Some authors merge Rhodiola into Sedum.

<i>Bonnetia</i> Genus of flowering plants

Bonnetia is a genus of flowering plants in the family Bonnetiaceae. Most of the roughly 30 species are shrubs. The remaining species, all trees, are among the dominant species in the forest vegetation on the tepui plateaus of northern South America, such as B. roraimae on the summit of Mount Roraima.

<i>Phedimus spurius</i> Species of succulent flowering plant

Phedimus spurius, the Caucasian stonecrop or two-row stonecrop, is a species of flowering plant in the family Crassulaceae. It is still widely listed in the literature as Sedum spurium.

<i>Hylotelephium</i> Genus of flowering plants in the family Crassulaceae (stonecrops)

Hylotelephium is a genus of flowering plants in the stonecrop family Crassulaceae. It includes about 33 species distributed in Asia, Europe, and North America.

<i>Aizopsis</i> Genus of the Crassulaceae succulent family

Aizopsis is a genus of the succulent family Crassulaceae, found in east Asia.

<i>Petrosedum</i> Genus of flowering plants belonging to the stonecrop family

Petrosedum is a genus of the succulent family Crassulaceae.

<i>Phedimus</i> Genus of flowering plants

Phedimus is a genus of the succulent family Crassulaceae, with about 18 species, distributed in eastern Europe and Asia. The genus is described with two subgenera, but one of these is also recognized as a separate genus, Aizopsis. Phedimus kamtschaticus is widely grown as an ornamental ground cover and has gained the Royal Horticultural Society's Award of Garden Merit.

<i>Pistorinia</i> Genus of flowering plants

Petrosedum is a genus of the succulent plant family Crassulaceae.

Tanakaea radicans, the Japanese foam flower, is a member of the Saxifrage family native to Japan, and is the sole species in the genus Tanakaea. It is named after the Japanese botanist Tanaka Yoshio. It was initially described by Ludovic Savatier and Adrien René Franchet.

<i>Berberidopsis beckleri</i> Species of flowering plant

Berberidopsis beckleri is a species of climbing plant found in cool rainforests in eastern Australia. Its common name is the montane tape vine. Ferdinand von Mueller described the plant as Streptothamnus beckleri from collections at the Clarence River.

Afrovivella is a monotypic genus of the succulent plant family Crassulaceae. The sole species is Afrovivella semiensis.

<i>Peridiscus</i> Monotypic genus of Eudicot flowering plant in family Peridiscaceae

Peridiscus lucidus is a species of flowering plant, the only species in the genus Peridiscus, which is one of four genera within the family Peridiscaceae. It grows in Venezuela and northern Brazil, in evergreen, sometimes riverine forests. It was originally described by Bentham and Hooker in 1862. The taxonomic history of Peridiscus and of Peridiscaceae is complex, and has been resolved by molecular phylogenetic analysis.

<i>Farmeria</i> Genus of Podostemaceae plants

Farmeria is a genus of flowering plants in the riverweed family Podostemaceae, native to Sri Lanka and India. They attach to rocks using holdfasts, and their flowers are protected by boat-shaped spathella until they emerge.

References

  1. Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi: 10.1111/j.1095-8339.2009.00996.x .
  2. Andrew Millington; Mark Blumler; Udo Schickhoff (2011-09-22). The SAGE Handbook of Biogeography. SAGE Publications. pp. 143–. ISBN   978-1-4462-5445-5 . Retrieved 2013-08-07. The Cape Floristic Region in South Africa is comparatively rich in endemic flowering-plant families. Five families of angiosperms (Penaeaceae, Roridulaceae, Geissolomataceae, Grubbiaceae, and Lanariaceae) are endemic to that region ...
  3. Clemens Bayer; P. F. Stevens (2007-04-24). Flowering Plants. Eudicots: Berberidopsidales, Buxales, Crossosomatales, Fabales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllales, Clusiaceae Alliance, Passifloraceae Alliance, Dilleniaceae, Huaceae, Picramniaceae, Sabiaceae. Springer. pp. 155–. ISBN   978-3-540-32219-1 . Retrieved 2013-08-07. Geissolomataceae Endl., Ench. Bot. ... A single genus and species, Geissoloma marginatum (L.) A. Juss., restricted to the southern Langeberg mountains in the Cape of South Africa from the Swellendam to Riversdale divisions, on moist ...
  4. "Vegetation of SA". PlantsZAfrica.
  5. Forest, F. (2007), "Geissolomataceae", in Klaus Kubitski (ed.), Flowering Plants·Eudicots·Berberidopsiales, Buxiales, Cossosomatales, Fabiales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllalaes, Clusiaceae Alliance, Passifloraceae Alliance, Dilleniaceae, Huaceae, Picraminiaceae, Sabiaceae, The Families and Genera of Vascular Plants, vol. 9, ISBN   978-3540322191
  6. Oh, S.H. (2010). "Phylogeny and systematics of Crossosomatales as inferred from chloroplast atpB, matK, and rbcL sequences". Korean Journal of Plant Taxonomy. 40 (4): 208–217. doi: 10.11110/kjpt.2010.40.4.208 .