Biology:Dryadoideae

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Short description: Subfamily of flowering plants

Dryadoideae
Dryas drummondii6.jpg
Dryas × suendermannii
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Subfamily: Dryadoideae
(Lam. & DC.) Sweet
Genera

The subfamily Dryadoideae consists of four genera in the family Rosaceae,[1] all of which contain representative species with root nodules that host the nitrogen-fixing bacterium Frankia.[2] They are subshrubs, shrubs, or small trees with a base chromosome number of 9, whose fruits are either an achene or an aggregate of achenes.[1]

Taxonomic history

The subfamily has at various times been separated as its own family (Dryadaceae), or as a tribe (Dryadeae) or subtribe (Dryadinae).[3]

References

  1. 1.0 1.1 "Phylogeny and classification of Rosaceae". Plant Systematics and Evolution 266 (1–2): 5–43. 2007. doi:10.1007/s00606-007-0539-9. .
  2. "The impact of molecular systematics on hypotheses for the evolution of root nodule symbioses and implications for expanding symbioses to new host plant genera". Plant and Soil 194 (1/2): 185–192. 1997. doi:10.1023/A:1004240004063. .
  3. J. L. Reveal. "Indices Nominum Supragenericorum Plantarum Vascularium – RA-RZ". http://www.plantsystematics.org/reveal/pbio/fam/famRA-RZ.html. 

External links

Wikidata ☰ Q148828 entry