Tradescantia ernestiana

E. S. Anderson & Woodson

Contr. Arnold Arbor. 9: 58, plate 8, map 4. 1935.

Endemic
Treatment appears in FNA Volume 22.

Herbs, erect or ascending, rarely rooting at nodes. Roots (1–) 1.5–5 mm thick, fleshy. Stems not flexuous, 5–40 cm; internodes usually glabrous. Leaves spirally arranged, sessile; blade dull green, linear-lanceolate to lanceolate-oblong, 9–27 × 1–4 cm (distal leaf-blades wider than sheaths when sheaths opened, flattened), base cuneate to rounded, apex acuminate, not glaucous, glabrous or sparsely puberulent. Inflorescences terminal; bracts foliaceous. Flowers distinctly pedicillate; pedicels 2–3.2 cm, minutely pilose; sepals somewhat inflated, 9–16 mm, uniformly eglandular-pilose; petals distinct, deep blue, purple, or rose-red, broadly ovate, not clawed, 1.2–1.5 cm; stamens free; filaments bearded. Capsules 5–7 mm. Seeds 2–3 mm. 2n = 12.


Phenology: Flowering spring (Mar–May).
Habitat: Wooded hillsides, ledges and bluffs, occasionally along streams or in pastures

Distribution

V22 548-distribution-map.jpg

Ala., Ark., Ga., Mo., Okla., Tex.

Discussion

Tradescantia ernestiana is sympatric with, and easily confused with, T. virginiana in northern Alabama and perhaps northern Georgia [reported from Georgia by C. Sinclair (1967, p. 87), but no specimens are cited and I have seen none]. At present, the two species can be separated only by the relative width of the blade and sheath of the distal leaves. They are obviously closely related and should be studied in the field in the southern Appalachians where their ranges overlap. The Texas record is taken from C. Sinclair (1967).

The hybrid Tradescantia ernestinana × T. ozarkana is known from Arkansas and Missouri.

Selected References

None.

Lower Taxa

None.
... more about "Tradescantia ernestiana"
puberulent +, glabrous +  and not glaucous +
acuminate +
Robert B. Faden +
E. S. Anderson & Woodson +
cuneate +  and rounded +
petiolate +  and sessile +
9 cm90 mm <br />0.09 m <br /> (27 cm270 mm <br />0.27 m <br />) +
linear-lanceolate;lanceolate-oblong +
succulent +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
umbel-like +
Ala. +, Ark. +, Ga. +, Mo. +, Okla. +  and Tex. +
Wooded hillsides, ledges and bluffs, occasionally along streams or in pastures +
thyrsiform +  and cymose +
cauline +  and basal +
differentiated +
2 cm20 mm <br />0.02 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
rose-red +, purple +, blue +  and deep +
distinct +
not clawed +  and ovate +
unequal +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
Flowering spring (Mar–May). +
Contr. Arnold Arbor. +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
distinct +
eglandular-pilose +
inflated +
subequal +
0.9 cm9 mm <br />0.009 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
staminodial +
not flexuous +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not +  and enlarged +
slender +
Rhoeo +, Setcreasea +  and Zebrina +
Tradescantia ernestiana +
Tradescantia +
species +
ascending +  and erect +