Hydrangeaceae

Hydrangeaceae is a family of flowering plants in the order Cornales, with a wide distribution in Asia and North America, and locally in southeastern Europe.[3]

Hydrangeaceae
Hydrangea macrophylla, a member of the subfamily Hydrangeoideae
Fendlera rupicola, a member of the subfamily Jamesioideae
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Hydrangeaceae
Dumort.[1]
Genera

See text

Synonyms[2]
  • Kirengeshomaceae Nakai
  • Philadelphaceae Martinov
Hydrangea hydrangeoides, a member of the now-synonymised genus Schizophragma

Description

The genera are characterised by leaves in opposite pairs (rarely whorled or alternate), and regular, bisexual flowers with 4 (rarely 5–12) petals. The fruit is a capsule or berry containing several seeds, the seeds with a fleshy endosperm.

Genera

The following genera are accepted:[4]

Phylogeny

The family Hydrangeaceae has two subfamilies, namely Jamesioideae and Hydrangeoideae. The subfamily Jamesioideae comprises the genera Jamesia and Fendlera.[5][6] They are the sister group to the remaining Hydrangeaceae.[6][7] The subfamily Hydrangeoideae has two tribes:[8][6][7] Hydrangeae consists of Hydrangea s.l.,[8] and Philadelpheae consists of Philadelphus, Carpenteria, Deutzia, Kirengeshoma, Whipplea, and Fendlerella.[6][7] Carpenteria is the sister group to Philadelphus. Deutzia is the sister group to Kirengeshoma, and Fendlerella is the sister group to Whipplea.[7][5][6] However the relationships among those three clades within the tribe Philadelphae are a bit unclear.[7] The following cladogram summarizes results from different studies, and for each node it is noted which studies support the sister group positions of the following branches:

Hydrangeaceae[6][7]
Hydrangeoideae[6][7]
Hydrangeae[6]

Hydrangea s.l. (including Broussaisia, Cardiandra, Decumaria, Deinanthe, Dichroa, Pileostegia, Platycrater, and Schizophragma)[8]

Philadelpheae[6]
[6][5][8][7]

Philadelphus

Carpenteria

[6]
[5][6][7]

Deutzia

Kirengeshoma

[5][6][7]

Whipplea

Fendlerella

Jamesioideae[6][5][7]

Jamesia

Fendlera

References
  1. Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x.
  2. "Family: Hydrangeaceae Dumort., nom. cons". Germplasm Resources Information Network. United States Department of Agriculture. 2003-01-17. Retrieved 2012-07-31.
  3. Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  4. "Hydrangeaceae Dumort". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 30 June 2021.
  5. Kim, C., Deng, T., Wen, J., Nie, Z. L., & Sun, H. (2015). "Systematics, biogeography, and character evolution of Deutzia (Hydrangeaceae) inferred from nuclear and chloroplast DNA sequences." Molecular Phylogenetics and Evolution, 87, 91-104.
  6. Hufford, L., Moody, M. L., & Soltis, D. E. (2001). "A phylogenetic analysis of Hydrangeaceae based on sequences of the plastid gene matK and their combination with rbcL and morphological data." International Journal of Plant Sciences, 162(4), 835-846.
  7. Kubitzki, K. (2013). "Flowering Plants. Dicotyledons: Celastrales, Oxalidales, Rosales, Cornales, Ericales." p. 206. Springer Berlin Heidelberg.
  8. Samain, M. S., Wanke, S., & Goetghebeur, P. (2010). "Unraveling extensive paraphyly in the genus Hydrangea s.l. with implications for the systematics of tribe Hydrangeeae." Systematic Botany, 35(3), 593-600.


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