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This genus is accepted, and its native range is W. South America.
A specimen from Kew's Herbarium

[KBu]

Eriksson, R. (2007). A Synopsis of Basellaceae. Kew Bulletin, 62(2), 297-320. Retrieved from http://www.jstor.org/stable/20443356

Morphology General Habit
Scandent or occasionally trailing vine
Morphology Leaves
Leaves petiolate, ± decurrent on stem; leaf blade 1 - 5.5 x 1 - 5.5 cm, ± rounded cordate, with margins dentate by ± acute and thinly arranged glands, cordate at base, obtuse to acute at apex
Morphology Reproductive morphology Flowers
Flowers distinctly pedicellate, bisexual, chasmogamous, scentless
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments straight in bud, connate and fused up to c. 1/2 of their length with petals; anthers basifixed, ± deltoid, with thecae connate at apex, dehiscent by longitudinal slits
Morphology Reproductive morphology Flowers Calyx
Sepals 1.5 - 2 x 1 - 1.5 mm, distinctly shorter than petals, patent at anthesis and ± erect in fruit, rounded to broadly ovate, free from each other, fused at base up to c. 1/2, with petals, without dorsal structures, obtuse at apex, at anthesis greenish, in fruit pale and dry, ± membranous
Morphology Reproductive morphology Flowers Corolla
Petals 2 - 3 x 1.5 mm, uniform, patent at anthesis and ± erect in fruit, ± elliptic, connate only at utmost base, obtuse at apex, at anthesis greenish, in fruit pale and dry, ± membranous
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary ± globose, sometimes slightly lobed; styles 3, sometimes persistent; stigmas linear to clavate
Morphology Reproductive morphology Flowers Pedicel
Pedicels ± slender, slightly thickened and elongated in fruit
Morphology Reproductive morphology Fruits
Fruit subglobose to somewhat obliquely pyriform, in cross section ± rounded to obscurely ridged, tightly enclosed by persistent, sometimes eventually disappearing perianth.
Morphology Reproductive morphology Inflorescences
Inflorescences 1 - 4 cm long and wide dichasia with slender axis, shortly to distinctly pedunculate
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles initially subtending flower bud, later displaced due to elongation of pedicel and development of successive inflorescence branches in their axils, distinctly developed, usually rather thick, narrowly triangular or lanceolate to ovate, free
Morphology Stem
Stem glabrous, not prodtucing tutbers
Note
A monotypic genus that may be closely related to Ullucus.
Type
Tournonia hookeriana Moq.

Native to:

Colombia, Ecuador

Tournonia Moq. appears in other Kew resources:

First published in A.P.de Candolle, Prodr. 13(2): 225 (1849)

Accepted by

  • Eriksson, R. (2007). A synopsis of Basellaceae Kew Bulletin 62: 297-320.

Literature

Kew Bulletin

  • Moquin-Tandon, A. (1849b). Basellaceae. In: A. P. de Candolle, Prodr. 13(2): 220 - 230, 462. Paris.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0