Vitis rotundifolia var. munsoniana

(J. H. Simpson ex Planchon) M. O. Moore

Sida 14: 345. 1991.

Common names: Everbearing or bullace or pygmy grape little muscadine
Endemic
Basionym: Vitis munsoniana J. H. Simpson ex Planchon in A. L. P. P. de Candolle and C. de Candolle, Monogr. Phan. 5: 615. 1887
Synonyms: Muscadinia munsoniana (J. H. Simpson ex Planchon) Small V. rotundifolia var. pygmaea McFarlin ex D. B. Ward
Treatment appears in FNA Volume 12. Treatment on page 7. Mentioned on page 8.

Plants high climbing to sometimes shrubby or trailing. Leaf blade 3–8 cm diam. Berries 12–30 per infructescence, 8–12 mm diam. Seeds to 6 mm.


Phenology: Flowering and fruiting year-round in peninsular Florida, late Apr–May farther north; fruiting late Jul–Sep.
Habitat: Floodplain forests, riverbanks, hammocks, pinelands, sand pine scrub.
Elevation: 0–200 m.

Discussion

Variety munsoniana is distinguished from the more widespread var. rotundifolia by its smaller and more numerous berries, and these traits remain consistent under greenhouse conditions. It may well represent a species distinct from Vitis rotundifolia.

Variety pygmaea was described based on collections from Polk and Highlands counties, Florida, with shrubby or trailing habit, small leaves, and narrow and ridged seed raphe. Field studies by J. Wen suggest that these characteristics intergrade with those of var. munsoniana and that it is an extreme xeric ecotype of var. munsoniana, which occurs in the same areas.

Selected References

None.

Lower Taxa

None.
Michael O. Moore† +  and Jun Wen +
(J. H. Simpson ex Planchon) M. O. Moore +
Vitis munsoniana +
Everbearing or bullace or pygmy grape +  and little muscadine +
Ala. +, Fla. +  and Ga. +
0–200 m. +
Floodplain forests, riverbanks, hammocks, pinelands, sand pine scrub. +
Flowering and fruiting year-round in peninsular Florida, late Apr–May farther north +  and fruiting late Jul–Sep. +
Muscadinia munsoniana +  and V. rotundifolia var. pygmaea +
Vitis rotundifolia var. munsoniana +
Vitis rotundifolia +
variety +