Epidendrum floridense

Hágsater

Icon. Orchid. 2(1): plate 133. 1993.

IllustratedEndemic
Synonyms: Amphiglottis difformis (Jacquin) Britton
Treatment appears in FNA Volume 26. Treatment on page 611. Mentioned on page 610.

Plants cespitose, 6–26 cm. Roots basal, 1–2 mm diam. Stems unbranched, sinuous, terete, 5–23 cm. Leaves throughout length of stem; petiole to 25 mm; blade narrowly elliptic, 2-lobed, 2–6.7 × 0.7–2.3 cm, leathery-succulent. Inflorescences nearly corymbose; peduncle less than 1 cm; floral bracts triangular-ovate, to 12 mm. Flowers 4–14, resupinate, simultaneous, green; sepals wide open, narrowly obovate-elliptic, 5-veined, 12–15 × 3–5 mm, nearly leathery, apex acute to rounded; petals linear-oblanceolate, 3-veined, 11–12 × 2–2.5 mm, membranaceous, apex acute; lip widely cordate, 5–9 × 9–18.5 mm, usually with pair of shallow sinuses in front, fleshy-thickened toward center, apex somewhat notched, 2-callose; column 7–8.5 mm; clinandrium entire, erose, covering anther; anther transversely reniform, with prominent beak in front; ovary 22–28 mm. Capsules nearly globose; pedicel 20 mm; body 16–20 × 10–13 mm.


Phenology: Flowering Aug–Oct; fruiting Dec–Apr.
Habitat: On trees in forests and swamps in and around Everglades and Lake Okeechobee
Elevation: 0–30 m

Discussion

Epidendrum floridense is pollinated by male night moths: Anticarsia gemmatilis, Phyprosopus callitrichoides, and Lymire edwardsii (G. J. Goss 1977). The flowers produce copious nectar within the nectar tube; in some cases nectar overflows, and a drop is found in front of the callus. The species is threatened because of increasing intensities of winter freezes.

Previous authors have cited this species as Epidendrum difforme Jacquin and considered it to be highly variable and widespread throughout the Neotropics. Field and herbarium studies have shown that it is not a single highly variable species but rather a complex of about 50 species (L. M. Sánchez and E. Hágsater 1997). Most of these can be easily recognized by a series of characters including: terete or compressed stems, simultaneous or successive flowering, few or many flowers, shape of the lip and petals, veining, fimbriation of the clinandrium, shape of the nectarium, presence or absence of nectar, distribution, and ecological and elevational preferences. Thus many names previously relegated to synonymy are being recognized, and many new species described. The Florida plants are clearly distinct from the true Epidendrum difforme, which, among other characteristics, has stems that are strongly compressed laterally and is endemic to the Windward Antilles.

Selected References

None.

Lower Taxa

None.
... more about "Epidendrum floridense"
self-pollination +
reniform +
Notched (?) +, Acute (?) +  and Rounded (?) +
Eric Hágsater +
Hágsater +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
2 cm20 mm <br />0.02 m <br /> (6.7 cm67 mm <br />0.067 m <br />) +
2-lobed +
0.7cm;2.3cm +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +  and 1.3 cm13 mm <br />0.013 m <br /> (?) +
7mm +  and 8.5mm +
0–30 m +
0 cm0 mm <br />0 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not +  and pedicellate +
arranged +  and not distichous +
simultaneous +
ellipsoid;subglobose +
On trees in forests and swamps in and around Everglades and Lake Okeechobee +
lateral +  and terminal +
petiolate +, sessile +  and simple +
cauline +  and basal +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cordate +
larger +
fleshy-thickened +
0.9 cm9 mm <br />0.009 m <br /> (1.85 cm18.5 mm <br />0.0185 m <br />) +
differing in form and color +
2.2 cm22 mm <br />0.022 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
1-many-flowered +  and cymose +
pendent +  and erect +
20 cm200 mm <br />0.2 m <br /> (?) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
membranaceous +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Aug–Oct +  and fruiting Dec–Apr. +
compressed +  and obovoid +
Icon. Orchid. +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
aerial +  and subterranean +
minute +
5-veined +  and open +
free +, distinct +, adnate +  and connate +
obovate-elliptic +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +  and Endemic +
sinuous +
hanging +  and erect +
proliferous +
thickened +  and stout +
5 cm50 mm <br />0.05 m <br /> (23 cm230 mm <br />0.23 m <br />) +
concave +  and convex +
Amphiglottis difformis +
Epidendrum floridense +
Epidendrum +
species +
annual +  and perennial +
plant +  and cespitose +
lithophytic +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +