Eschweilera sagotiana Miers
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Family
Lecythidaceae (Magnoliophyta)
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Scientific Name
Eschweilera sagotiana Miers
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Primary Citation
Trans. Linn. Soc. London 30: 262-263. 1874
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Description
Author: Scott A. Mori and Ghillean T. Prance
Type: French Guiana. Karouany [Acarouani], 1858 (fl), Sagot 1104 (lectotype, BM, designated Fl. Neotrop. Monogr. 21(II). 1990, photo NY; isolectotype, K).
Description: Trees, to 30 m tall, unbuttressed or buttressed. Bark gray, brown or reddish-brown, scalloped. Leaves not know to flush just before anthesis; petioles 8-15 mm long; blades elliptic, 10.5-22 x 4-10 cm, glabrous, coriaceous, the base obtuse, the margins entire, the apex acuminate; secondary veins in 10-15 pairs, the tertiary veins salient abaxially. Inflorescences terminal or axillary, usually once branched paniculate arrangement of racemes, the principal rachis 4.5-13 cm long, glabrous or puberulous, the pedicels 5-12 mm long, usually puberulous. Flowers 2.5 cm diam.; calyx with 6 lobes, the lobes widely ovate, 3.5-4.5 x 2.5-3.5 mm, spreading to ascending, not or scarcely imbricate, thick, convex to carinate abaxially, flat adaxially; petals 6, white, widely obovate, 12-15 x 9-12 mm; androecium with staminal ring asymmetric, with 116-130 stamens, the filaments 1 mm long, not markedly clavate, white, the anthers 0.5 mm long, the hood of 10-12 x 12-14 mm, with double coil, with distinct groove on marginal, exterior, anterior surface, light yellow; hypanthium abruptly constricted to pedicel; ovary 2-locular, each with 4-5 basally attached ovules, the style obconical, erect or oblique, 1-2 mm long, not well-differentiated from summit. Fruits cup-shaped, the calycine ring inserted near apex of fruit base, the infracalycine zone rounded to pedicel, the pedicel often persisting as woody knob, 2-3 x 4-5.5 cm (excluding operculum and pedicel), the pericarp 5-6 mm thick. Seeds not seen.
Common names: Guyana. black kakaralli, common kakaralli.
Distribution: Eschweilera sagotiana is distributed in the Guianas and in the states of Amapá and Pará, Brazil.
Ecology: This species is a canopy tree of non-flooded forest.
Phenology: Eschweilera sagotiana flowers most profusely from Aug to Dec.
Pollination: No observations recorded but most likely pollinated by bees.
Dispersal: No observations recorded.
Predation: No observations recorded.
Field characters: This species is characterized by its canopy stature; very distinctly scalloped bark; leaves with salient abaxial higher order venation; relatively small flowers subtended by a short but distinct pedicel; and cup-shaped fruits.
Taxonomic notes: Eschweilera sagotiana is morphologically similar and difficult to separate from E. micrantha. It differs from the latter by its more coriaceous leaves with more salient tertiary venation on the abaxial surface; the presence versus absence of a duct in the petiole; a more robust pedicel; a hypanthium which is truncate directly below the calyx; and a slightly larger flower (usually at least 2.5 cm in diam.). Eschweilera sagotiana also has affinities with E. subglandulosa from which it differs by its less smooth and shiny leaf surface and more cup-shaped fruits with a higher calycine ring. In addition, E. sagotiana has a more easterly distribution. Sagot 1104 serves as the type for Eschweilera sagotiana and Lecythis tapuya. Although both represent the same species, their respective types are marked with different collection dates and therefore they probably represent different individuals of the same species.
Conservation: IUCN Red List: Not on list.
Uses: None recorded.
Etymology: The species epithet refers to the collector of the type.
Source: This species page is based on Mori & Prance, 1990.
Acknowledgements: We are grateful to C. Gracie for allowing us to use her images to illustrate the characters of this species.
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Floras and Monographs
Eschweilera sagotiana Miers: [Article] 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.
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Narratives
