Aizopsis

Aizopsis
Aizopsis aizoon
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Saxifragales
Family:	Crassulaceae
Genus:	Aizopsis Grulich [1]
Type species
Aizopsis aizoon [1] [2]

Aizopsis is a genus of the succulent family Crassulaceae (stonecrop family), found in Asia.

Description

Flowers yellow, chromosome numbers, x=16. ^[2]

Taxonomy

In 1978, Ohba divided up the very large and cosmopolitan genus Sedum , placing Sedum aizoon and allied species into Sedum subgenus Aizoon. ^[3] In 1995, he segregated these species into a separate genus, Aizopsis. ^{[4] [5]} However, other authors included these species in another segregate, Phedimus , as subgenus Aizoon. ^[6] Subsequent molecular phylogenetic analysis established Aizopsis as a sister group to Phedimus, which with distinguishing characteristics justified their retention as a separate genus, ^[2] although the distinction has not been universally adopted. ^[7]

Distribution

Original range from east Asia (highest diversity) and northeast Asia to central Asia (one species). Now also naturalized in Europe and North America.

References

1. Grulich 1984.
2. Gontcharova et al 2006.
3. Ohba 1978.
4. Ohba 1995.
5. Ohba et al 2000.
6. Hart 1995.
7. Thiede & Eggli 2007.

Bibliography

• Hart, H. 't; Eggli, U., eds. (1995). Evolution and systematics of the Crassulaceae (23rd Congress of the International Organization for Succulent Plant Study, Wageningen, Netherlands, August 20th, 1994). Leiden: Backhuys. ISBN   978-9073348462. OCLC   34335028.
• Thiede, J; Eggli, U (2007). "Crassulaceae". In Kubitzki, Klaus (ed.). Berberidopsidales, Buxales, Crossosomatales, Fabales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllales, Clusiaceae Alliance, Passifloraceae Alliance, Dilleniaceae, Huaceae, Picramniaceae, Sabiaceae. pp. 83–119. ISBN   978-3540322146.(full text at ResearchGate)
• Gontcharova, S. B.; Artyukova, E. V.; Gontcharov, A. A. (June 2006). "Phylogenetic relationships among members of the subfamily Sedoideae (Crassulaceae) inferred from the ITS region sequences of nuclear rDNA" (PDF). Russian Journal of Genetics. 42 (6): 654–661. doi:10.1134/S102279540606010X. S2CID   33249840. Archived from the original (PDF) on 2017-08-09. Retrieved 2019-10-15.
• Grulich, Vit (1984). "Generic division of Sedoideae in Europe and the adjacent regions" (PDF). Preslia. 56: 29–45.
• Hart, H. 't (1995). Infrafamilial and generic classification of the Crassulaceae. pp. 159–172., in Hart & Eggli (1995)
• Ohba, H (1978). "Generic and infrageneric classification of the old world sedoideae crassulaceae". Journal of the Faculty of Science University of Tokyo Section III Botany 12(4): 139-193. 12 (4): 139–193.
• Ohba, Hideaki (1995). Systematic problems of Asian Sedoideae. pp. 151–158., in Hart & Eggli (1995)
• Ohba, Hideaki; Bartholomew, Bruce M.; Turland, Nicholas J.; Kunjun, Fu (2000). "New Combinations in Phedimus (Crassulaceae)". Novon . 10 (4): 400–402. doi:10.2307/3392995. JSTOR   3392995.