Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn 1853: 100. 1854

Etymology: For Pedro de Alvarado y Contreras, ca. 1485 – 1541, member of Cortez’s expedition to Mexico
Treatment appears in FNA Volume 9. Treatment on page 4. Mentioned on page 3.
Shrubs or trees, 10–70[–150] dm. Leaves imparipinnate (mimosoid in appearance); leaflets [14–]17–35[–40], alternate, elliptic, 8–33 × 3–9 mm, base rounded to oblique. Inflorescences lateral to subterminal, racemes. Flowers: sepals 5; petals 5 or 0; stamens 5, anthers dorsifixed with enlarged connective, thecae parallel; pistils 3-carpellate, 2 lateral carpels sterile, central fertile, in staminate flowers pistils vestigial. Fruits samaras, flattened or recurved, usually hairy; sepals not persistent. Seeds 1, ellipsoid, ± 1/4–1/3 length of samara. x = 8.


Fla., Mexico, West Indies, Central America, South America (Argentina, Bolivia).


Species 6 (1 in the flora).

A chromosome count for Alvaradoa subovata Cronquist of Argentina is 2n = 16 (A. M. Sanso and M. N. Seo 2005). The samara is derived from a dry, indehiscent capsule; the wings are formed from the two lateral, sterile carpels.

Selected References


Facts about "Alvaradoa"
AuthorW. Wayt Thomas +
AuthorityLiebmann +
DistributionFla. +, Mexico +, West Indies +, Central America +, South America (Argentina + and Bolivia). +
EtymologyFor Pedro de Alvarado y Contreras, ca. 1485 – 1541, member of Cortez’s expedition to Mexico +
Illustration copyrightFlora of North America Association +
IllustratorMarjorie C. Leggitt +
Publication titleVidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn +
Publication year1854 +
ReferenceNone +
Source xml grained fna xml/V9/V9 2.xml +
Taxon familyPicramniaceae +
Taxon nameAlvaradoa +
Taxon parentPicramniaceae +
Taxon rankgenus +
VolumeVolume 9 +