Oligomeris

Cambessèdes in V. Jacquemont

in V. Jacquemont, Voy. Inde 4(Bot.): 23. 1839

Common names: Whitepuff
Etymology: Greek oligos, few, and meros, part, alluding to fewer stamens and petals than in other genera of family
Treatment appears in FNA Volume 7. Treatment on page 190.
Herbs, annual [biennial], or perennial. Stems erect to ascending, branched basally. Leaves not rosulate; alternate (sometimes fasciculate); petiolate, petiole shorter than blade, winged; blade margins usually entire, sometimes toothed near base, teeth 1–2, hyaline. Inflorescences usually dense spikes (or spikelke racemes). Pedicels absent or nearly so. Flowers: sepals persistent, 2–4(–5), distinct, equal; petals 2–3[–5], distinct or basally connate, margins entire or shallowly incised; intrastaminal nectary-discs absent; stamens 3–4[–10]; filaments persistent, distinct or basally connate; ovaries 4(–5)-carpelled. Capsules erect, angled, subglobose to obovoid, walls membranous. Seeds smooth (glossy). x = 15.

Distribution

sw North America, n Mexico, sw, c Asia, n, s Africa, n Atlantic Islands.

Discussion

Species 3 (1 in the flora).

Molecular research has shown that Oligomeris is a monophyletic group nested within Reseda in tribe Resedeae and sister to Reseda sect. Glaucoreseda (S. Martín-Bravo et al. 2007). Nonetheless, it seems preferable to maintain the genus; it has clear-cut diagnostic morphological characteristics. Hyaline teeth at the base of the leaves may be vestiges of a laminar segmentation of the leaves (F. Weberling 1968); some have interpreted the teeth as stipular.

References

None.

Facts about "Oligomeris"
AuthorSantiago Martín-Bravo +, Gordon C. Tucker + and Thomas F. Daniel +
AuthorityCambessèdes in V. Jacquemont +
Common nameWhitepuff +
Distributionsw North America +, n Mexico +, sw +, c Asia +, n +, s Africa + and n Atlantic Islands. +
EtymologyGreek oligos, few, and meros, part, alluding to fewer stamens and petals than in other genera of family +
IllustratorBarbara Alongi +
Publication titlein V. Jacquemont, Voy. Inde +
Publication year1839 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V7/V7 243.xml +
Taxon familyResedaceae +
Taxon nameOligomeris +
Taxon parentResedaceae +
Taxon rankgenus +
VolumeVolume 7 +