familyNyssaceae
genusNyssa

Nyssa ursina

Small

Torreya 27: 92. 1927.

Common names: Bear or Apalachicola tupelo
EndemicConservation concern
Synonyms: Nyssa biflora var. ursina (Small) D. B. Ward N. sylvatica var. ursina (Small) J. Wen & Stuessy
Treatment appears in FNA Volume 12. Treatment on page 461. Mentioned on page 459.
Revision as of 17:24, 29 July 2020 by imported>Volume Importer
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Shrubs or trees, 2–5 m, crown typically intricately branched; bark irregularly fissured; twigs usually glabrous, rarely puberulent. Leaves: petiole (4–) 5–9 mm; blade narrowly elliptic to oblanceolate, rarely to ovate, 3–7 × 1–2 cm, coriaceous, base cuneate to rounded, margins entire, apex obtuse, abaxial surface glabrous or puberulent (primarily along veins), adaxial surface glabrous. Inflorescences: peduncle 3.2–5.5 cm, sparsely hairy or glabrous; staminate (1–) 2–5-flowered, pistillate and bisexual 1–2-flowered. Staminate pedicels present. Flowers: ovary glabrous. Drupes usually black, rarely blue, glaucous, globose, 7–11 mm, smooth; stone 6–8 mm, with several low, rounded longitudinal ridges.


Phenology: Flowering spring.
Habitat: Open savannas, depressions in flatwoods.
Elevation: 0–70 m.

Discussion

Nyssa ursina is limited to six counties in the panhandle region of Florida. It occurs together with N. biflora throughout its limited range, which supports recognizing it as a distinct species.

Selected References

None.

Lower Taxa

None.
... more about "Nyssa ursina"
puberulent +  and glabrous +
3cm;7cm +
obtuse;cuneate;rounded +
coriaceous +
1cm;2cm +
Gordon C. Tucker +  and Tracy J. Park +
gray brown +
fissured +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
obtuse;cuneate;rounded +
coriaceous +
1cm;2cm +
pinnate +, dentate +, sparsely +  and entire +
narrowly elliptic;oblanceolate +
Bear or Apalachicola tupelo +
blue +  and black +
globose +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0–70 m. +
unisexual +  and bisexual +
Open savannas, depressions in flatwoods. +
1-2-flowered +, pistillate +, (1-)2-5-flowered +  and staminate +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
obtuse +, cuneate +  and rounded +
coriaceous +
intrastaminal +
glabrous +  and hairy +
3.2 cm32 mm <br />0.032 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
greenish;greenish white +
distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering spring. +
1(-2)[-3]-carpellate +
rounded +
Endemic +  and Conservation concern +
free +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
conic +  and subulate +
Nyssa biflora var. ursina +  and N. sylvatica var. ursina +
Nyssa ursina +
species +
puberulent +  and glabrous +
tree +  and shrub +
dioecious +, polygamous +  and monoecious +