Taxon Details: Gustavia coriacea S.A.Mori
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Protologue of Gustavia coriacea
Protologue of Gustavia coriaceaFamily:
Lecythidaceae (Magnoliophyta)
Lecythidaceae (Magnoliophyta)
Scientific Name:
Gustavia coriacea S.A.Mori
Gustavia coriacea S.A.Mori
Primary Citation:
Fl. Neotrop. Monogr. 21(1): 184. 1979
Fl. Neotrop. Monogr. 21(1): 184. 1979
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Author: Scott A. Mori & Nathan P. Smith
Type: Venezuela. Amazonas: Rio Pacimoni-Yatua, Casiquiare along Río Yatua near Caño Tauavaca, 100-140 m alt, 4 Dec 1953 (fl), Maguire et al 36505 (holotype, NY sheet 2; isotype, NY).
Description: Trees to 10 m tall (Foldats 9147). Leaves: petioles 15-21 x 8-9 mm, semicircular in cross section; blades oblanceolate, 70-71 x 21-22 cm, coriaceous, glabrous, the base acute to rounded, the margins slightly revolute, the apex acuminate; secondary veins in 25-28 pairs. Inflorescences cauline, racemose, rachis 20-25 mm long, with 2-3 flowers; pedicel 65-75 mm long, the bract triangular, 7 x 8 mm, the bracteoles 2, subopposite, 3-7 x 4-7 mm, cucullate. Flowers 17-20 cm diam.; calyx-lobes 4, widely triangular, 4-5 x 14 mm, pubescent; petals 9, widely obovate, 80 x 45 mm, ferruginous pubescent in bud, puberulent at anthesis, white with tinges of pink on adaxial surface; androecium actinomorphic, the tube 20 mm tall, outer surface white, inner surface yellow, the filaments 24-27 mm, the anthers 3 mm; gynoecium 4(5)-locular, white pubescent at summit, the style 0.5 mm, the stigma 4-lobed. Fruits (immature) globose, 34 x 51 mm, the operculum depressed.
Common names: None known.
Distribution: Known only from a few collections from central and southern Venezuela, and one collection from Amazonas Brazil on the Yatua River.
Ecology:
Phenology: Flowers have been collected in Dec. Fruits have been collected in Feb, Apr, May, and Nov.
Pollination: No observations recorded.
Dispersal: No observations recorded.
Predation: No observations recorded.
Field characters: See taxonomic notes.
Taxonomic notes: Gustavia poeppigiana, G. augusta, G. pulchra, and G. acuminata are the only other large-leafed species of Gustavia sympatric with G. coriacea. This species is distinct from the first by its cauline instead of axillary inflorescences, from the second by its 25-28 instead of 14-22 pairs of lateral veins and its more robust flowers, from the third by its 4 instead of 6 calyx lobes, and from the fifth by its petiolate leaves. The closest relative to G. coriacea is probably G. longifolia from which it differs by having fewer lateral veins. If additional collections show that the two are sympatric the former may have to be brought into synonymy with the latter.
Conservation: IUCN Red List: Not on list.
Uses: None known.
Etymology: The specific epithet means "leathery" and refers to the texture of the leaves.
Source: Based on Mori in Prance & Mori, 1979.
Author: Scott A. Mori & Nathan P. Smith
Type: Venezuela. Amazonas: Rio Pacimoni-Yatua, Casiquiare along Río Yatua near Caño Tauavaca, 100-140 m alt, 4 Dec 1953 (fl), Maguire et al 36505 (holotype, NY sheet 2; isotype, NY).
Description: Trees to 10 m tall (Foldats 9147). Leaves: petioles 15-21 x 8-9 mm, semicircular in cross section; blades oblanceolate, 70-71 x 21-22 cm, coriaceous, glabrous, the base acute to rounded, the margins slightly revolute, the apex acuminate; secondary veins in 25-28 pairs. Inflorescences cauline, racemose, rachis 20-25 mm long, with 2-3 flowers; pedicel 65-75 mm long, the bract triangular, 7 x 8 mm, the bracteoles 2, subopposite, 3-7 x 4-7 mm, cucullate. Flowers 17-20 cm diam.; calyx-lobes 4, widely triangular, 4-5 x 14 mm, pubescent; petals 9, widely obovate, 80 x 45 mm, ferruginous pubescent in bud, puberulent at anthesis, white with tinges of pink on adaxial surface; androecium actinomorphic, the tube 20 mm tall, outer surface white, inner surface yellow, the filaments 24-27 mm, the anthers 3 mm; gynoecium 4(5)-locular, white pubescent at summit, the style 0.5 mm, the stigma 4-lobed. Fruits (immature) globose, 34 x 51 mm, the operculum depressed.
Common names: None known.
Distribution: Known only from a few collections from central and southern Venezuela, and one collection from Amazonas Brazil on the Yatua River.
Ecology:
Phenology: Flowers have been collected in Dec. Fruits have been collected in Feb, Apr, May, and Nov.
Pollination: No observations recorded.
Dispersal: No observations recorded.
Predation: No observations recorded.
Field characters: See taxonomic notes.
Taxonomic notes: Gustavia poeppigiana, G. augusta, G. pulchra, and G. acuminata are the only other large-leafed species of Gustavia sympatric with G. coriacea. This species is distinct from the first by its cauline instead of axillary inflorescences, from the second by its 25-28 instead of 14-22 pairs of lateral veins and its more robust flowers, from the third by its 4 instead of 6 calyx lobes, and from the fifth by its petiolate leaves. The closest relative to G. coriacea is probably G. longifolia from which it differs by having fewer lateral veins. If additional collections show that the two are sympatric the former may have to be brought into synonymy with the latter.
Conservation: IUCN Red List: Not on list.
Uses: None known.
Etymology: The specific epithet means "leathery" and refers to the texture of the leaves.
Source: Based on Mori in Prance & Mori, 1979.
Flora and Monograph Treatment(s):
Gustavia coriacea 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.
Gustavia coriacea 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.