Allantoma uaupensis (Spruce ex O.Berg) S.A.Mori, Y.-Y.Huang & Prance

  • Family

    Lecythidaceae (Magnoliophyta)

  • Scientific Name

    Allantoma uaupensis (Spruce ex O.Berg) S.A.Mori, Y.-Y.Huang & Prance

  • Primary Citation

    A phylogeny of Cariniana (Lecythidaceae) based on morphological and anatomical data.
    Brittonia 60: 69-81. 2008

  • Basionym

    Couratari uaupensis Spruce ex O.Berg

  • Description

    Author: Scott A. Mori, Ghillean T. Prance & Nathan P. Smith

    Type: Brazil. Amazonas: Panure, Rio Uaupes, Oct 1852 - Jan 1853 (fl, fr), Spruce 2510 (holotype, K; isotypes, BM, BR, C, E, F, G, GH, LE, NY, OXF, P, W).

    Description: Trees to 30 m tall, the young branches glabrous. Leaves: petioles 1.5-2.0 cm long, slightly winged, glabrous; blades oblong, 22.0-30.0 x 9.0-12.0 cm, glabrous abaxially, the base cuneate, slightly decurrent onto petiole, the margins entire but slightly revolute, the apex acuminate, acumen ca 2.0 cm long, the midrib prominulous adaxially, prominent and glabrous abaxially, the primary veins in 20-27 pairs, without distinct domatia at junction with midrib, prominent on both surfaces, 10.0-15.0 mm apart at base. Inflorescences terminal panicles, ca. 11.0-22.0 cm long, the rachis and branches glabrous, crustaceous, striate. Flowers sessile; calyx ca 2.0 mm long, turbinate, the lobes triangular, very small, glabrous on exterior; petals oblong-obovate, ca. 7.0 mm long; androecium actinomorphic, ca. 2.0 mm in diam. at base, with ca 11 reflexed stamens arising from apex only; style very short. Fruits 9.5-10.0 cm long, 5.0 (cm?) wide at apex, campanulate, widest at apex, not costate, calycine ring not apparent, the pericarp ca 7.0 mm thick at apex, smooth, not toothed at line of opercular dehiscence; operculum unknown. Seeds unknown.

    Common names: Brazil: chorao, chor.

    Distribution: Known from only a few collections in western Amazonas, Brazil.

    Ecology: Very little is known about the ecology of this species.

    Phenology: Flowers have been collected between Oct and Jan. Fruits have been collected in Mar.

    Pollination: No reports of pollination have been recorded.

    Dispersal: Although nothing is known about the seeds of this species, it is presumed that they are either wind dispersed like terra firme species of the genus or water dispersed like the riverine Allantoma lineata.

    Predation: No observations recorded.

    Field characters: Characters that define this species are leaf blades that are 22-30 cm long that have percurrent tertiary venation and lack domatia on the abaxial surface; inflorescence branches that are crustaceous; and flowers that are small with a thick androecium and reflexed stamens.

    Taxonomic notes: When Flora Neotropica Monograph 21(1) was published (Prance & Mori, 1979) only one species was recognized in Allantoma, but Huang et al. (2008) demonstrated that some of the species of Cariniana were actually species of Allantoma and transferred them to Allantoma which now includes seven species.

    Conservation: IUCN Red List: Vulnerable B1+2c ver 2.3 (Pires O'Brien, J. 1998. Cariniana uaupensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. www.iucnredlist.org. Downloaded on 12 February 2014.). Listed as Cariniana uaupensis.

    Uses: The bark is stripped and used for smoking by natives of the upper Rio Negro (Prance in Prance and Mori, 1979).

    Etymology: Named after the Uaupes River where the type was collected.

    Source: This species page is based on Prance and Mori, 1979.

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