Ameroglossum manoel-felixii

Description Saxicolous chamaephyte up to 3 m, occasionally with secondary branching along the stem. Young branches purplish, lustrous, quadrangular, winged, glabrous; when mature brownish, slightly inclined, subquadrangular. Leaves opposite, decussate (rarely ternate); leaf blade 4.0 – 15.0 × 3.3 – 4.8 cm, purplish when young, later greenish, lustrous, elliptic to narrowly elliptic, sometimes trullate, slightly bullate; younger leaves densely covered by papillose trichomes, later glabrous; apex acuminate to acute, often cirrhose; margin revolute when young, later flat, ciliate. Inflorescence a compound dichasium. Peduncle purplish, cylindrical, without wings, glabrous; primary peduncle 0.8 – 2.5 × 0.15 cm, secondary peduncle 0.5 – 1.1 × 0.1 cm, tertiary peduncle 0.5 – 0.7 × 0.1 cm. Pedicel 0.8 – 1.0 × 0.1 cm, purplish, glabrous, ventral side without wings. Bracts 0.3 – 0.7 × 0.8 cm, purplish, glabrous. Calyx purplish, abaxial side glabrescent with papillose trichomes, abaxial side densely covered by papillose trichomes, sepals lanceolate, dorsal one 1.5 – 1.8 × 0.3 – 0.5 cm, lateral ones 1.1 – 1.3 × 0.2 – 0.3 cm, ventral ones 0.8 – 1.1 × 0.2 – 0.4 cm. Corolla 5.0 – 5.7 cm long, scarlet, externally glabrous to densely covered by papillose trichomes, internally glabrescent with papillose trichomes; tube 3.5 – 4.0 cm, upper lip 1.5 – 1.7 × 0.8 – 0.9 cm, slightly bilobate; lower lip 0.9 – 1.3 × 0.4 – 0.5 cm, yellow, rarely with scarlet margins, inner perianth with trichomes filiform, violet; lobes revolute; median lobe ca 0.15 × 0.10 cm. Stamens with ventral pair exserted and dorsal pair enclosed, adnate to the median third of the corolla tube; filaments 1.8 – 3.5 cm, violet; thecae 0.2 cm diam.; staminodium 0.30 × 0.02 cm, adnate at the median third of the corolla tube, glabrous. Ovary 0.7 – 1.0 × 0.2 – 0.4 cm; style 4.0 – 5.5 cm, slightly exserted. Capsule 1.4 – 1.3 × 0.5 – 0.6 cm, purplish. Seeds 0.10 × 0.05 cm.