| Aichryson subsp. var.
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perennial, annual
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| Aichryson {{{status}}} Fossil range: {{{fossil_range}}}
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Aichryson
Webb & Berthel.
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| Species
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| About 15; see text
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Aichryson is a genus of about 15 species of succulent, subtropical plants, mostly native to the Canary Islands, with a few in the Azores, Madeira and Morocco, and one in Portugal.
The species of Aichryson are not frost-resistant. They are related to Sempervivum, Jovibarba, Greenovia, Aeonium and Monanthes, readily seen in their similar flowers.
Relationships
Recent phylogenentic studies of Crassulaceae indicate that Aichryson is closely related to Monanthes and Aeonium (both genera are also largely endemic to the Canary Islands). Two other genera of Crassulaceae that have many-parted (polymerous) flowers (Sempervivum and Jovibarba) are not closely realted to the three Canary Island genera.[1][2][3][4]
On the Canary Islands, the center of species diversity seems to be the island of La Palma Relationships within Aichryson were investigated by Fairfield et al (2004) [Plant Systematics and Evolution248: 71-83]. They found that the five subspeies of A. pachycaulon were not each others closest relatives (monophyletic) and additional species may need to be erected after additional study.
Species
Other species recognized by Nyffeler in Eggli 2004 are:
A recently named species is:
References
Template:Reflist
Template:Crassulaceae-stub
- ↑ Ham and 't Hart. (1998). American Journal of Botany, 85: 123-134
- ↑ Mort et al. (2001). American Journal of Botany, 88: 76-91
- ↑ Mes and 't Hart. (1996). Molecular Ecology, 5: 351-363
- ↑ Mort et al. (2002). Systematic Botany, 27: 271-288
