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)
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
Lecythidaceae
Synonyms:
Lecythis micrantha O.Berg, Lecythis gracilipes Sagot, Eschweilera gracilipes (Sagot) R.Knuth, Eschweilera floribunda Eyma, Eschweilera polyantha A.C.Sm.
Lecythis micrantha O.Berg, Lecythis gracilipes Sagot, Eschweilera gracilipes (Sagot) R.Knuth, Eschweilera floribunda Eyma, Eschweilera polyantha A.C.Sm.
Description:
Description - Small to medium-sized trees, to 30 m tall, usually unbuttressed, sometimes slightly fluted towards base. Bark gray to dark brown, with irregular depressions left by sloughing plates. Leaf blades elliptic, infrequently narrowly ovate, 10-21 x 4-7 cm, glabrous, sometimes with inconspicuous abaxial punctations, chartaceous, with 9-12 pairs of lateral veins; apex acuminate; base acute, obtuse, or rounded; margins entire; petiole 5-9 mm long. Inflorescences terminal or axillary, usually once-branched paniculate arrangement of racemes, the principal rachis 3-23 cm long, glabrous to puberulous, the pedicels 6-10 mm long, usually puberulous. Flowers 1.5-2.5 cm diam.; calyx with six lobes, the lobes widely ovate, 1.5-3 x 1.4-2.5 mm, spreading to ascending, usually not imbricate, thick, convex to carinate abaxially, flat to concave adaxially; petals six, widely obovate, 8-15 x 6-12 mm, usually white, infrequently yellow; hood of androecium 5-12 x 5-10 mm, with double coil, often with distinct groove on marginal, exterior, anterior surface, light yellow; staminal ring asymmetric, with 110175 stamens, the filaments 1-2 mm long, the anthers 0.3-0.5 mm long; hypanthium constricted into well-defined pedicel; ovary 2-locular, each with 3-5 basally attached ovules, the style obconical, erect or oblique, not well differentiated from summit, 0.7-2 mm long. Fruits cup-shaped, the calycine ring inserted above middle, the in-fracalycine zone rounded to pedicel, 2-3 x 4-5 cm (excluding operculum and pedicel), the pedicel often persisting as woody knob; the pericarp 3-5 mm thick, often penetrated by mucilagebearing ducts, the exterior nearly smooth to rough and lenticellate; operculum convex. Seeds with lateral aril, 2 x 1.2 cm.
Description - Small to medium-sized trees, to 30 m tall, usually unbuttressed, sometimes slightly fluted towards base. Bark gray to dark brown, with irregular depressions left by sloughing plates. Leaf blades elliptic, infrequently narrowly ovate, 10-21 x 4-7 cm, glabrous, sometimes with inconspicuous abaxial punctations, chartaceous, with 9-12 pairs of lateral veins; apex acuminate; base acute, obtuse, or rounded; margins entire; petiole 5-9 mm long. Inflorescences terminal or axillary, usually once-branched paniculate arrangement of racemes, the principal rachis 3-23 cm long, glabrous to puberulous, the pedicels 6-10 mm long, usually puberulous. Flowers 1.5-2.5 cm diam.; calyx with six lobes, the lobes widely ovate, 1.5-3 x 1.4-2.5 mm, spreading to ascending, usually not imbricate, thick, convex to carinate abaxially, flat to concave adaxially; petals six, widely obovate, 8-15 x 6-12 mm, usually white, infrequently yellow; hood of androecium 5-12 x 5-10 mm, with double coil, often with distinct groove on marginal, exterior, anterior surface, light yellow; staminal ring asymmetric, with 110175 stamens, the filaments 1-2 mm long, the anthers 0.3-0.5 mm long; hypanthium constricted into well-defined pedicel; ovary 2-locular, each with 3-5 basally attached ovules, the style obconical, erect or oblique, not well differentiated from summit, 0.7-2 mm long. Fruits cup-shaped, the calycine ring inserted above middle, the in-fracalycine zone rounded to pedicel, 2-3 x 4-5 cm (excluding operculum and pedicel), the pedicel often persisting as woody knob; the pericarp 3-5 mm thick, often penetrated by mucilagebearing ducts, the exterior nearly smooth to rough and lenticellate; operculum convex. Seeds with lateral aril, 2 x 1.2 cm.
Discussion:
Eschweilera micrantha is recognized by its nonfissured bark with irregular depressions caused by sloughing plates of periderm; small flowers, usually with white petals and yellow androecial hoods; androecial hood often with a submarginal groove on the anterior, exterior surface; and cupshaped fruits.Eschweilera micrantha is morphologically similar to E. sagotiana. For a discussion of their differences see the treatment of the latter species.In the Saul, French Guiana population of this species we have observed that some individuals have yellow pollen whereas others have dark pollen in the staminal ring. It is possible that physiologically dimorphic pollen is produced in different individuals of the same species as has been demonstrated within the same flowers of Lecythis pisonis and Couroupita guianensis (Mori & Orchard, 1979; Mori et al., 1980b; Ormond et al., 1981). If true, this could be a first step towards dioecism in Lecythidaceae.
Eschweilera micrantha is recognized by its nonfissured bark with irregular depressions caused by sloughing plates of periderm; small flowers, usually with white petals and yellow androecial hoods; androecial hood often with a submarginal groove on the anterior, exterior surface; and cupshaped fruits.Eschweilera micrantha is morphologically similar to E. sagotiana. For a discussion of their differences see the treatment of the latter species.In the Saul, French Guiana population of this species we have observed that some individuals have yellow pollen whereas others have dark pollen in the staminal ring. It is possible that physiologically dimorphic pollen is produced in different individuals of the same species as has been demonstrated within the same flowers of Lecythis pisonis and Couroupita guianensis (Mori & Orchard, 1979; Mori et al., 1980b; Ormond et al., 1981). If true, this could be a first step towards dioecism in Lecythidaceae.
Distribution:
Venezuela South America| Amazonas Venezuela South America| Guyana South America| Suriname South America| French Guiana South America| Brazil South America| Amazonas Brazil South America|
Venezuela South America| Amazonas Venezuela South America| Guyana South America| Suriname South America| French Guiana South America| Brazil South America| Amazonas Brazil South America|
Common Names:
coco de mono, kakaralli, mahot blanc, mahot noir, weti loabi, Ripeiro
coco de mono, kakaralli, mahot blanc, mahot noir, weti loabi, Ripeiro