Monographs Details:
Authority:

Mori, S. A. & Prance, Ghillean T. 1990. Lecythidaceae - Part II: The zygomorphic-flowered New World genera (Couroupita, Corythophora, Bertholletia, Couratari, Eschweilera, & Lecythis). With a study of secondary xylem of Neotropical Lecythidaceae by Carl de Zeeuw. Fl. Neotrop. Monogr. 21: 1-376. (Published by NYBG Press)
Family:

Lecythidaceae
Description:

Description - Canopy trees, to 30 m, unbuttressed. Twigs gray or brown, 4-6 mm diam., with suborbicular lenticels, these with slight horizontal orientation. Bark brown, nearly smooth, with shallow vertical cracks. Leaf blades elliptic to oblong, 14-26 x 5-10.5 cm, glabrous, chartaceous, with 1723 pairs of lateral veins; apex acuminate; base obtuse to rounded; margins crenulate; petiole 820 mm long, glabrous. Inflorescences terminal or in axils of uppermost leaves, paniculate arrangement of racemes, with 2 or 3 orders of branching, often large and spreading, to 50 x 40 cm, all rachises ferrugineous, with horizontally oriented squamulae, the pedicel jointed, the lower part persisting as knob 2-5 mm long after flowers fall. Flowers 3.5-4 cm diam.; calyx of six broadly ovate lobes, imbricate at bases, rounded at apices, 3-4 x 3-4 mm; petals six, broadly obovate, 17-20 x 13-19 mm, pinkish-red to dark red or purple; hood of androecium flat, dorsiventrally expanded, 16-17 x 12-15 mm, the appendages nearly entirely fused, antherless; staminal ring with 194-230 stamens, the filaments 1.8-2.5 mm long, the anthers 0.4 mm long, the innermost yellow, the remainder white; hypanthium ferrugineous, rough, with horizontally oriented squamulae, contrasting with dark smooth calyx lobes; ovary 2-locular, each locule with 13-26 ovules attached at base of septum or on floor of locule, the summit umbonate, the style not differentiated from summit of ovary. Fruits campanulate, 6-15 x 6-10 cm, with indistinct calyx lobes, the pericarp 13-27 mm thick. Seeds elongate, 30 x 11 mm, with basal aril.

Discussion:

This species is morphologically similar to C. labriculata, with which it shares a ferrugineous hypanthium which contrasts sharply with the smooth, dark calyx lobes. For differences between the two species see discussion of C. labriculata.

The anthers of the staminal ring appear to be of two different types. Several rows of anthers on the ligular side of the staminal ring are yellow in contrast to the white ones of the remainder of the ring. Our observations indicate that female euglossine bees preferentially collect pollen from the yellow anthers (Mori & Boeke, 1987).
Distribution:

French Guiana South America| Brazil South America| Amapá Brazil South America|

Common Names:

matamatá gameleira