Due to public health recommendations, the Museum is temporarily closed to public visitors.

Research and Conservation in Southern Sonora, Mexico

Encyclia adenocarpa (quiqui)

Creeping rhizomes give rise to hard, golf ball sized pseudobulbs topped with a pair of leathery semisucculent leaves. Two-foot branched inflorescences bear numerous one-inch dull brownish flowers with white lips in late spring into early summer. The flowers have a faint, sweet fragrance.

A common orchid on rock faces in humid canyons.

Encyclia adenocarpa on an exposed rock in a canyon bottom on the Río Cuchujaqui, Sonora. This is a xerophytic species that may lose all of its leaves in the dry season. Photo: Mark Dimmitt

Encyclia adenocarpa flowers. Photo: Mark Dimmitt

Encyclia adenocarpa growing on a cliff at El Cajon on the Río Cuchujaqui, Sonora. Also identifiable are Plumeria rubra, Bursera fagaroides, Agave vilmoriniana. Photo: Mark Dimmitt

Description: Forming large colonies clinging to sheer rock. Rhizomes short, the pseudobulbs crowded, ovoid, green, to 5-9 cm long, 4.8 cm wide. Leaves paired, rarely 1, sometimes 3, linear, 20-36 cm long, 8-13.5 mm wide, thick, leathery and semisucculent. Inflorescences racemose to mostly paniculate, the flowering stalks 30-72 (-135) cm long. Flowers yellow-brown, 3-3.5 cm across, with a sweet fragrance in the morning and early afternoon, usually many on slender branches.

   Sepals and lateral petals brownish: dark purple-red stripes on a yellowish background. Sepals oblanceolate, 15.5-18.8 mm long, 4.5-5.5 mm wide, moderately keeled, with a few scattered hairs basally on the upper surface, the apex broadly acute.
Petals oblanceolate, 15.2-17.5 mm long, 3.0-4.5 mm wide, the apex acute to obtuse.
Lip petal 15.3-17.6 mm long, united to the basal one-third to one-half of the column, the middle lobe 6-7.5 mm long, 6-8 mm wide, white with faint purple-red and yellowish margins, the lateral lobes (auricles) yellowish, 3.5-3.7 mm long, 2.0-2.5 mm wide, the callus 4-9 mm long, concave, smooth, pure white, extending distally into 5 white ridges (crests).
Column cream-white, 9-11 mm long, 5 mm wide at apex, the wings ca. 1 mm wide. Pollinia thin, 0.9-1.3 mm long. Capsules ellipsoid, pappilose, the pedicellate portion 12-19.5 mm long, the body strongly angled, 17-25 mm long plus a prominent beak. (January-) May to July; fruits ripe January-June of the following year.

North-facing or shaded, riparian canyon rock-faces. Tropical deciduous forest and oak forest, especially at their ecotone. 350-900 m. Often growing with Oncidium cebolleta and bromeliads including Tillandsia capitata. SE Sonora and SW Chihuahua; southward to Guatemala.

Silhouette Icon