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FNA | Family List | FNA Vol. 9 | Amaryllidaceae | ROSACEAE Subfam. ROSOIDEAE

4a2. Rosaceae Jussieu (subfam. Rosoideae) tribe Rubeae Dumortier, Anal. Fam. Pl. 39. 1829.

Luc Brouillet

Shrubs, subshrubs, or herbs, perennial; armed or unarmed. Leaves alternate, imparipinnately or palmately compound or simple; stipules persistent [deciduous], free or adnate to petiole; venation pinnate or palmate. Flowers: perianth and androecium perigynous; epicalyx bractlets absent; hypanthium flat to hemispheric; torus flat or convex to conic; carpels 5–150, styles apical, distinct; ovules 2, apical, collateral, ˂only 1 maturing˃. Fruits aggregated drupelets; styles persistent, not elongate.

Genus 1, species 250–700 (37 in the flora): North America, Mexico, West Indies, Central America, South America, Eurasia, Africa, Pacific Islands, Australia; introduced nearly worldwide.

The base chromosome number for Rubeae is x = 7. The tribe is host to Phragmidium rusts.

Lower Taxon


 

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