Taxon Details: Lecythis serrata S.A.Mori
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Multimedia:
Narratives:
Placentaton of Lecythis serrata.
Leaf morphology and anatomy of Lecythis serrata.
Inflorescence and flower morphology and anatomy of Lecythis serrata.
Placentaton of Lecythis serrata.
Leaf morphology and anatomy of Lecythis serrata.
Inflorescence and flower morphology and anatomy of Lecythis serrata.
Additional Resources:
Protologue of Lecythis serrata.
Protologue of Lecythis serrata.Family:
Lecythidaceae (Magnoliophyta)
Lecythidaceae (Magnoliophyta)
Scientific Name:
Lecythis serrata S.A.Mori
Lecythis serrata S.A.Mori
Primary Citation:
Fl. Neotrop. Monogr. 21(2): 320. 1990
Fl. Neotrop. Monogr. 21(2): 320. 1990
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Author: Scott A. Mori & Nathan P. Smith
Type: Brazil. Pará: Road to Munguba, 23 May 1969 (fl), N. T. Silva 2035 (holotype, IAN; isotype, NY).
Description: Trees, 4-20 m tall, the trunk and bark not known. Stems glabrous. Leaves: petioles 1–10 mm long, glabrous, narrowly decurrent, slightly canaliculate; blades elliptic, 5.5-14 x 2.7-7 cm, chartaceous, glabrous, the base cuneate to obtuse, the margins serrate, the apex acuminate; venation brochidodromous to weakly eucamptodromous, the midrib prominent adaxially, prominent to salient abaxially, glabrous, the secondary veins in 7-12 pairs, prominent abaxially, intersecondaries present, inconspicuous, the tertiary veins reticulate. Inflorescences terminal, axillary, or from twigs, racemose, unbranched or with 1 order of branching, principle rachis 2–7.5 cm long, pubescent; pedicel/hypanthium ca. 1 mm long below articulation, 3–5 mm long above articulation, the bract and bracteoles not known. Flowers when leaves present, 2.5–3 cm diam.; hypanthium tapered, often slightly sulcate and minutely rugose, puberulous, green, longitudinally oriented mucilage-bearing ducts absent; calyx-lobes 6, widely ovate, 3-5 x 3-5 mm, imbricate, glabrous, green; petals 6, widely obovate, 15-24 x 12-18 mm, glabrous, white (specimens from Pará) or yellow (Teixeira 833 from Rondônia); androecium zygomorphic, a staminal lip present, the staminal ring with 280–328 stamens, the filaments 2–3 mm long, clavate, the outermost filaments longer and more geniculate than innermost, the anthers ca. 0.5 mm long, the hood curved, forming a single coil, 15 x 20 mm, outer surface more or less smooth, color not known (yellow?), with numerous vestigial stamens, the vestigial stamens swept inward, shorter on outside of the coil, proximal vestigial stamens swept inward and partially fused, sometimes distinct and on inside of coil, staminodes absent, anterior hood extension absent; ovary 4-locular, the ovary summit obconical, the ovules 12–30 per locule, inserted in axil on lower septum, oblique to nearly erect, the style shorter and thicker than related Lecythis species, tapering to apex, oblique, ca. 2.5 mm long, stylar collar absent. Fruits dehiscent, cylindric, 4-6 x 4-5 cm (excluding operculum), the calyx-lobes persistent, not woody, erect, the infracalycine zone 3.5–4 cm long, rounded to pedicel, the supracalycine zone 0.5–1 cm long, erect to slanted inward, the pericarp 3–5 mm thick, smooth, brown. Seeds fusiform, number per fruit and size not known, the testa and veins not known; aril present, basal, size not known.
Common names: Brazil: matamatá branco.
Distribution: Known from central and eastern Amazonian Brazil.
Ecology: A small to medium-sized tree of non-flooded forest.
Phenology: Flowers have been gathered in Dec, Mar, Apr, and May and fruits with seeds have been collected in Dec.
Pollination: No reports of pollination have been recorded but species with similar flowers are pollinated by bees. The single-coiled androecial hood presumably produces nectar but this needs to be confirmed with field observations.
Dispersal: No reports of dispersal have been recorded but the basal aril suggests animal dispersal.
Predation: No observations recorded.
Field characters: Lecythis serrata is distinguished from all other species of the genus by having serrate leaf margins, an androecial hood with a single coil that has vestigial stamens on the outside and the inside of the coil, and a cylindric fruit with a smooth exocarp.
Taxonomic notes: Lecythis serrata is morphologically similar to L. chartacea. Within Lecythis, flowers of L. retusa can also have a single coil that has vesgial stamens on the outside and the inside of the coil.
Conservation: IUCN Red List: Lower Risk/near threatened ver 2.3 (Pires O'Brien, J. 1998. Lecythis serrata. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. www.iucnredlist.org. Downloaded on 26 August 2012.). Lecythis serrata is only known from a small number of collections. Additional fieldwork is needed to better understand its distribution and abundance.
Uses: No uses recorded.
Etymology: This species was named for its serrate leaf margins.
Source: This species page is based on Mori in Mori & Prance (1990) and a recent review (2012) of the collections at NY.
Author: Scott A. Mori & Nathan P. Smith
Type: Brazil. Pará: Road to Munguba, 23 May 1969 (fl), N. T. Silva 2035 (holotype, IAN; isotype, NY).
Description: Trees, 4-20 m tall, the trunk and bark not known. Stems glabrous. Leaves: petioles 1–10 mm long, glabrous, narrowly decurrent, slightly canaliculate; blades elliptic, 5.5-14 x 2.7-7 cm, chartaceous, glabrous, the base cuneate to obtuse, the margins serrate, the apex acuminate; venation brochidodromous to weakly eucamptodromous, the midrib prominent adaxially, prominent to salient abaxially, glabrous, the secondary veins in 7-12 pairs, prominent abaxially, intersecondaries present, inconspicuous, the tertiary veins reticulate. Inflorescences terminal, axillary, or from twigs, racemose, unbranched or with 1 order of branching, principle rachis 2–7.5 cm long, pubescent; pedicel/hypanthium ca. 1 mm long below articulation, 3–5 mm long above articulation, the bract and bracteoles not known. Flowers when leaves present, 2.5–3 cm diam.; hypanthium tapered, often slightly sulcate and minutely rugose, puberulous, green, longitudinally oriented mucilage-bearing ducts absent; calyx-lobes 6, widely ovate, 3-5 x 3-5 mm, imbricate, glabrous, green; petals 6, widely obovate, 15-24 x 12-18 mm, glabrous, white (specimens from Pará) or yellow (Teixeira 833 from Rondônia); androecium zygomorphic, a staminal lip present, the staminal ring with 280–328 stamens, the filaments 2–3 mm long, clavate, the outermost filaments longer and more geniculate than innermost, the anthers ca. 0.5 mm long, the hood curved, forming a single coil, 15 x 20 mm, outer surface more or less smooth, color not known (yellow?), with numerous vestigial stamens, the vestigial stamens swept inward, shorter on outside of the coil, proximal vestigial stamens swept inward and partially fused, sometimes distinct and on inside of coil, staminodes absent, anterior hood extension absent; ovary 4-locular, the ovary summit obconical, the ovules 12–30 per locule, inserted in axil on lower septum, oblique to nearly erect, the style shorter and thicker than related Lecythis species, tapering to apex, oblique, ca. 2.5 mm long, stylar collar absent. Fruits dehiscent, cylindric, 4-6 x 4-5 cm (excluding operculum), the calyx-lobes persistent, not woody, erect, the infracalycine zone 3.5–4 cm long, rounded to pedicel, the supracalycine zone 0.5–1 cm long, erect to slanted inward, the pericarp 3–5 mm thick, smooth, brown. Seeds fusiform, number per fruit and size not known, the testa and veins not known; aril present, basal, size not known.
Common names: Brazil: matamatá branco.
Distribution: Known from central and eastern Amazonian Brazil.
Ecology: A small to medium-sized tree of non-flooded forest.
Phenology: Flowers have been gathered in Dec, Mar, Apr, and May and fruits with seeds have been collected in Dec.
Pollination: No reports of pollination have been recorded but species with similar flowers are pollinated by bees. The single-coiled androecial hood presumably produces nectar but this needs to be confirmed with field observations.
Dispersal: No reports of dispersal have been recorded but the basal aril suggests animal dispersal.
Predation: No observations recorded.
Field characters: Lecythis serrata is distinguished from all other species of the genus by having serrate leaf margins, an androecial hood with a single coil that has vestigial stamens on the outside and the inside of the coil, and a cylindric fruit with a smooth exocarp.
Taxonomic notes: Lecythis serrata is morphologically similar to L. chartacea. Within Lecythis, flowers of L. retusa can also have a single coil that has vesgial stamens on the outside and the inside of the coil.
Conservation: IUCN Red List: Lower Risk/near threatened ver 2.3 (Pires O'Brien, J. 1998. Lecythis serrata. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. www.iucnredlist.org. Downloaded on 26 August 2012.). Lecythis serrata is only known from a small number of collections. Additional fieldwork is needed to better understand its distribution and abundance.
Uses: No uses recorded.
Etymology: This species was named for its serrate leaf margins.
Source: This species page is based on Mori in Mori & Prance (1990) and a recent review (2012) of the collections at NY.
Narratives:
Placentaton of Lecythis serrata.
Leaf morphology and anatomy of Lecythis serrata.
Inflorescence and flower morphology and anatomy of Lecythis serrata.
Placentaton of Lecythis serrata.
Leaf morphology and anatomy of Lecythis serrata.
Inflorescence and flower morphology and anatomy of Lecythis serrata.
Flora and Monograph Treatment(s):
Lecythis serrata S.A.Mori: [Article] Prance, Ghillean T. & Mori, S. A. 1979. Lecythidaceae - Part I. The actinomorphic-flowered New World Lecythidaceae (Asteranthos, Gustavia, Grias, Allantoma & Cariniana). Fl. Neotrop. Monogr. 21: 1-270.
Lecythis serrata S.A.Mori: [Article] Prance, Ghillean T. & Mori, S. A. 1979. Lecythidaceae - Part I. The actinomorphic-flowered New World Lecythidaceae (Asteranthos, Gustavia, Grias, Allantoma & Cariniana). Fl. Neotrop. Monogr. 21: 1-270.