Prometheum

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Saxifragales

Familia: Crassulaceae
Subfamilia: Sempervivoideae
Tribus: Sedeae
Genus: Prometheum
Species: P. aizoon – P. chrysanthum – P. muratdaghense – P. pilosum – P. rechingeri – P. sempervivoides – P. serpentinicum – P. silvana – P. sincorana
Name

Prometheum (A.Berger) H.Ohba (1878)

Type species: P. sempervivoides (M.Bieb.) H.Ohba

Synonyms

Basionym
Sedum sect. Prometheum A.Berger in Engl. et Prantl, Nat. Pflanzenfam. ed. 2. 18a: 459. 1930.
Sedum sect. Sempervivoides Boiss., Fl. Orient. 2: 776. 1872.
Sedum subgen. Sempervivoides (Boiss.) Zernov, Fl. Severo-Zapadn. Kavkaza 305. 2006.

Homotypic
Pseudorosularia Gurgen., Zametki Sist. Geogr. Rast. 35: 10. 1978.

Heterotypic
Rosularia sect. Chrysanthae Eggli, Monogr. Study Gen. Rosularia (Crassulac.) (Bradleya 6 Suppl.) 3. 1988.
Type species: R. chrysantha (Boiss. & Heldr. ex Boiss.) Takhtajan

References

Ohba, H. 1978. Journal of the Faculty of Science, University of Tokyo, Section III. Botany 12(4): 168.

Links

Hassler, M. 2019. Prometheum. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2019 Dec 05. Reference page.
International Plant Names Index. 2019. Prometheum. Published online. Accessed: Dec 05 2019.
Govaerts, R. et al. 2019. Prometheum in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 Dec 05. Reference page.
Tropicos.org 2019. Prometheum. Missouri Botanical Garden. Published online. Accessed: 05 Dec 2019.

Vernacular names

Prometheum is a genus of plants in the family Crassulaceae.

Taxonomy

The species in the genus Prometheum include:[1]

Prometheum pilosum (M.Bieb.) H.Ohba
Prometheum sempervivoides (Fisch. ex M.Bieb.) H.Ohba
Prometheum tymphaeum (Quézel & Contandr.) 't Hart

P. sempervivoides and P. pilosum were historically included in genera Sedum (section Cyprosedum), and later Rosularia, but were elevated to a separate genus by Ohba (1995).[2]
Description

According to an experiment done on interspecific plant crosses in the family Crassulaceae, the genus Prometheum produced on average 55 seeds. Furthermore, the same experiment found that plants of the genus Prometheum formed a comparium with each other, meaning they were capable of interbreeding.[3]
Distribution and habitat

From Anatolia to Iran, through the Caucasus.[2]
References

"Prometheum (A.Berger) H.Ohba". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved August 22, 2020.
Ohba 1978.

Hart et al 1999.

Bibliography

Hart, Henk ’t; van Ham, Roeland D.H.J.; Stevens, Jan F.; Elema, Elizabeth T.; van der Klis, Herman; Gadella, Theo W.J. (June 1999). "Biosystematic, molecular and phytochemical evidence for the multiple origin of sympetaly in Eurasian Sedoideae (Crassulaceae)". Biochemical Systematics and Ecology. 27 (4): 407–426. doi:10.1016/S0305-1978(98)00098-2.
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.