Vanilla dilloniana

Correll

Amer. Orchid Soc. Bull. 15: 331, figs. 1–7. 1946.

Common names: Leafless vanilla Mrs. Lott’s vanilla
Illustrated
Treatment appears in FNA Volume 26. Treatment on page 508.

Roots usually 1 per node, gray, 1–1.5 mm diam., villous and thicker when in contact with substrate, glabrous when aerial. Stems 4–8 mm diam., thick, smooth, internodes to 20 cm. Leaves with at least some persistent, fleshy; blade to 8 cm, margins somewhat involute, apex hooked. Inflorescences axillary, 15-flowered racemes, short-pedunculate, to 9 cm excluding peduncle; floral bracts broadly ovate, 2–13 mm, fleshy. Flowers: sepals and petals distinct and free, light green; dorsal sepal narrowly oblongelliptic, slightly concave, 4.8–5.5 × 0.8–1.2 cm, apex obtuse to acute; lateral sepals elliptic-oblanceolate, slightly falcate, 4.5–5 × 0.9–1.3 cm; petals narrowly oblong-oblanceolate, abaxially keeled, 4.1–5 × 1.1–1.4 cm, apex acute; lip arching over column, reddish purple, becoming very pale at margin edge and within throat, broadly obovate, obscurely 3-lobed, 4–5 × 4–5 cm when spread, margins basally involute; claw and basal margins adnate to column for more than 1/2 its length, free portion crenulate; disc with broad thickened midrib extending length of lip, distal 1.5 cm of midrib with erect, scattered, thick, sometimes forked hairs, 1–2.5 mm, with hinged, stiff beard ± 1 cm at middle of disc midrib, midrib glabrous proximal to beard; disc flanking midrib glabrous but with numerous short fleshy hairs extending to lateral margins of throat, within 5–10 mm of apical margin; column arched, slender, 3.2 cm; pollinia yellow; pedicellate ovary 4.7–5 cm. Berries pendent, green, darkening at maturity, fusiform-clavate, 16 × 1.2 cm.


Phenology: Flowering May–Jun.
Habitat: Hammocks
Elevation: 0–20 m

Discussion

Vanilla dilloniana is known in the flora from Paradise Key, Everglades National Park, Miami-Dade County, Florida (P. M. Brown 2002).

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Vanilla dilloniana"
self-pollination +
Acute (?) +  and Obtuse (?) +
James D. Ackerman +
Correll +
darkening +  and green +
indehiscent +
16 cm160 mm <br />0.16 m <br /> (?) +
1.2 cm12 mm <br />0.012 m <br /> (?) +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
0 cm0 mm <br />0 m <br /> (8 cm80 mm <br />0.08 m <br />) +
semiterete +  and elongate +
slender +
Leafless vanilla +  and Mrs. Lott’s vanilla +
ornamented +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Fla. +  and West Indies +
4.8 cm48 mm <br />0.048 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0–20 m +
0.2 cm2 mm <br />0.002 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
3-merous +, sessile +  and pedicellate +
Hammocks +
0 cm0 mm <br />0 m <br /> (20 cm200 mm <br />0.2 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (5 cm50 mm <br />0.05 m <br />) +
falcate +  and elliptic-oblanceolate +
sheathless +  and articulate +
persistent +
cauline +  and basal +
reduced +
pale +  and reddish purple +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3-lobed +  and obovate +
larger +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
differing in form and color +
4.7 cm47 mm <br />0.047 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1-many-flowered +  and cymose +
pendent +  and erect +
free +  and distinct +
4.1 cm41 mm <br />0.041 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Flowering May–Jun. +
Amer. Orchid Soc. Bull. +
short-pedunculate +  and 15-flowered +
0 cm0 mm <br />0 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
aerial +  and subterranean +
glabrous +  and villous +
slender +
thicker +
light green +
free +  and distinct +
foliaceous +
not +  and alike +
Illustrated +
naked +  and branching +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
pendent +  and erect +
proliferous +
thickened +  and stout +
succulent +
concave +  and convex +
Vanilla dilloniana +
species +
triangular +
annual +  and perennial +
hemiepiphytic +  and terrestrial +
saprophytic +, photosynthetic +  and mycotrophic +