Galeandra bicarinata

G. A. Romero & P. M. Brown

N. Amer. Native Orchid J. 6: 78, fig. 1. 2000. 2000

Treatment appears in FNA Volume 26. Treatment on page 644. Mentioned on page 643.

Plants apparently saprophytic, leafless at anthesis, to 60 cm. Roots numerous, white, thick, fleshy. Stems abbreviated rhizomes; pseudobulbs subterranean, cormlike, ovoid, covered with scales. Leaves: petiole to 15 cm; blade 3-ribbed, linear-lanceolate, 25 × 3 cm. Inflorescences borne after leafy shoot, sometimes branched, to 20-flowered, 100 cm, base with several small, imbricating bracts; peduncle purple, with several leaflike bracts to 7 cm; rachis green; floral bracts to 2 cm. Flowers resupinate, light green; sepals spreading, oblanceolate, keeled, to 2.4 × 0.7 cm; petals spreading, oblanceolate, slightly oblique, 2 × 0.7 cm; lip subquadrangular, slightly 3-lobate at apex when spread, 2 × 2.5 cm, base produced into nearly cylindric, slightly hooked, short, obtuse spur, margins crenate, covered with short trichomes, apex reflexed; disc with a narrow callus, covered with short trichomes, bicarinate, keels merging toward base, diverging toward apex; column erect, slightly arcuate, 3-angled, to 1 × 0.3 cm, with prominent foot; anther green, cucullate, acute, the margins and apex papillose, 2 × 0.3 cm; pollinaria with no discernible viscidium or stipe; pollinia 2, yellow, spheric, 1 × 1 mm; pedicellate ovary to 2.5 cm. Capsules pendent, ellipsoid, 3 cm.


Phenology: Flowering fall.
Habitat: Hammocks
Elevation: 0–100[–1500] m

Discussion

Galeandra bicarinata was previously identified as G. beyrichii Reichenbach f., a similar species with four pronounced keels on the lip.

Selected References

None.

Lower Taxa

None.