Molecular Biology and Genetics
Statistics of barcoding coverage
|Specimen Records:||6||Public Records:||6|
|Specimens with Sequences:||6||Public Species:||5|
|Specimens with Barcodes:||6||Public BINs:||0|
|Species With Barcodes:||5|
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 related to the three Canary Island genera.
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.
- Aichryson bethencourtianum
- Aichryson bollei
- Aichryson divaricatum
- Aichryson laxum
- Aichryson palmense
- Aichryson porphyrogennetos
- Aichryson tortuosum (Gouty Houseleek)
- Aichryson villosum
Other species recognized by Nyffeler in Eggli 2004 are:
- Aichryson brevipetalum
- Aichryson dumosum
- Aichryson pachycaulon (five subspecies have been recognized)
- Aichryson parlatorei
- Aichryson punctatum
A recently named species is:
- 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
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