Onagraceae tribe Circaeeae

Dumortier

FFl. Belg., 88. 1827.

Synonyms: Fuchsieae de Candolle
Treatment appears in FNA Volume 10.

Herbs, perennial, or shrubs, [epiphytes, lianas, or trees]. Leaves opposite or whorled, [alternate]; stipules present. Flowers primarily protogynous, actinomorphic and 4-merous, or zygomorphic and 2-merous; stamens 2 times as many, or as many, as sepals; pollen shed in monads. Fruits indehiscent, either a fleshy berry or a dry capsule, covered with stiff, hooked hairs. Seeds 1–500, without hairs or wings.

Distribution

North America, Mexico, West Indies (Hispaniola), Central America, South America, Eurasia, n Africa, Pacific Islands (New Zealand), Pacific Islands (Society Islands)

Discussion

Genera 2, species 117 (2 genera, 4 species, including 1 hybrid, in the flora).

All previous classification systems have placed Circaea and Fuchsia into different tribes, based on their morphological and geographical differences. Molecular analyses place these genera into a single clade (C. J. Bult and E. A. Zimmer 1993; E. Conti et al. 1993; R. A. Levin et al. 2003, 2004; V. S. Ford and L. D. Gottlieb 2007) that is as or more strongly supported than are other clades. The two genera share the feature of indehiscent fruits, expressed in Fuchsia as fleshy berries and in Circaea as dry fruits covered with hooklike hairs; nonhomologous indehiscent fruits also occur in Onagreae. The only occurrences of protogyny in the family occur in these two genera (not in all species of either, P. H. Raven 1979).

Selected References

None.

Lower Taxa

Warren L. Wagner +  and Peter C. Hoch +
Dumortier +
indehiscent +  and loculicidal +
lobed +, toothed +  and entire +
North America +, Mexico +, West Indies (Hispaniola) +, Central America +, South America +, Eurasia +, n Africa +, Pacific Islands (New Zealand) +  and Pacific Islands (Society Islands) +
basifixed +  and versatile +
2-merous +, zygomorphic +, 4-merous +  and actinomorphic +
indehiscent +
perennial +
whorled +  and opposite +
deciduous +
basal +  and cauline +
numerous +  and 1 +
red +, pink +, white +  and yellow +
18 +, 15 +, 11 +, 10 +  and 7 +
FFl. Belg., +
basal +  and cauline +
several +  and 1 +
clavate +  and globose +
1 +  and 500 +
sculptured +  and smooth +
purple +, pink +, red +  and green +
deciduous +
4 +  and 2 +
parenchymatous +
parietal +, axile +  and placentation +
aquatic +, amphibious +  and terrestrial +
2 times as many or as many as sepals +
prostrate +  and decumbent +
subsessile +  and petiolate +
intrapetiolar +
aquatic +, amphibious +  and terrestrial +
Fuchsieae de +
Onagraceae tribe Circaeeae +
Onagraceae subfam. Onagroideae +
3(-5)-aperturate +