Biology:Xylothamia
| Xylothamia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Astereae |
| Subtribe: | Gutiereziinae |
| Genus: | Xylothamia G.L.Nesom, Y.B.Suh, D.R.Morgan & B.B.Simpson |
Xylothamia, the desert goldenrods,[1] is a genus of flowering plants in the family Asteraceae.[2][3][4][5] Until 2003, it was held to contain nine species of shrubs native to deserts of Mexico and the southwestern United States.[6] However, it seems to contain at least two groups. Four species are related to Gundlachia and may be moved to that genus. Plants of the World Online (part of the Royal Botanic Gardens, Kew) class it as a synonym of Gundlachia.[7] The relationships of the other five species is not quite as clear. All nine species do belong in the subtribe Solidagininae.[6]
Species
The following four species, including the type species Xylothamia triantha, are related to each other and to Gundlachia:[6]
- Xylothamia diffusa
- Xylothamia riskindii
- Xylothamia triantha
- Xylothamia truncata
Kew lists Gundlachia diffusa Gundlachia triantha and Gundlachia truncata.[8]
The following three species are related to each other and to Bigelowia and Thurovia:[6]
- Xylothamia pseudobaccharis
- Xylothamia parrasana
- Xylothamia purpusii
Due to molecular evidence, these 3 species were transferred to genus Medranoa in 2007; as Medranoa pseudobaccharis, Medranoa parrasana and Medranoa purpusii.[9]
The following two species are related to each other:[6]
- Xylothamia johnstonii
- Xylothamia palmeri
References
- ↑ "Xylothamia". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=XYLOT.
- ↑ Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Astereae". Euro+Med PlantBase. Freie Universität Berlin. http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=131772&PTRefFk=7000000.
- ↑ UniProt. "Tribe Astereae". https://www.uniprot.org/taxonomy/199231.
- ↑ National Herbarium of New South Wales. "Genus Kippistia". New South Wales FloraOnline. Royal Botanic Gardens, Sydney. http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=gn&name=Kippistia.
- ↑ "Polyarrhena Cass.". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. http://www.ville-ge.ch/cjb/bd/africa/details.php?langue=an&id=3041.
- ↑ 6.0 6.1 6.2 6.3 6.4 Urbatsch, L. E.; Roberts, R. P.; Karaman, V. (2003). "Phylogenetic evaluation of Xylothamia, Gundlachia, and related genera (Asteraceae, Astereae) based on ETS and ITS nrDNA sequence data". American Journal of Botany 90 (4): 634–49. doi:10.3732/ajb.90.4.634. PMID 21659159.
- ↑ "Xylothamia G.L.Nesom, Y.B.Suh, D.R.Morgan & B.B.Simpson | Plants of the World Online | Kew Science" (in en). https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:925294-1.
- ↑ "Gundlachia A.Gray | Plants of the World Online | Kew Science" (in en). https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:9131-1.
- ↑ Nesom, Guy L. (10 August 2007). "NOTES ON THE DISARTICULATION OF XYLOTHAMIA (ASTERACEAE: ASTEREAE)". Journal of the Botanical Research Institute of Texas 1 (1): 145–148.
Wikidata ☰ Q5227558 entry
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