Piriqueta cistoides

(Linnaeus) Grisebach

Fl. Brit. W. I., 298. 1860. 1860

Illustrated
Basionyms: Turnera cistoides Linnaeus Sp. Pl. ed. 2, 1: 387. 1762
Treatment appears in FNA Volume 6. Treatment on page 166.

Distribution

V6 302-distribution-map.jpg

Ala., Fla., Ga., S.C., West Indies, South America.

Discussion

Subspecies 2 (1 in the flora).

Within Piriqueta, P. cistoides has the widest distribution. Both subspecies show wide morphological variation; subsp. cistoides is homostylous and self compatible; subsp. caroliniana is distylous and self incompatible. In Cuba, Dominican Republic, and northern South America, intermediate specimens (10% of the total) cannot be assigned morphologically to one subspecies or the other. R. Ornduff (1970c) made crosses between and among the subspecies; he found no reproductive barriers among the different morphs of subsp. caroliniana; the fertility of the hybrids between both subspecies was higher than that of the hybrids among populations of subsp. cistoides. Subspecies cistoides has been reported from Georgia; the author has not seen specimens.

Selected References

None.