Taxon Details: Gustavia santanderiensis R.Knuth
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Protologue of Gustavia santanderiensis.
Protologue of Gustavia santanderiensis.Family:
Lecythidaceae (Magnoliophyta)
Lecythidaceae (Magnoliophyta)
Scientific Name:
Gustavia santanderiensis R.Knuth
Gustavia santanderiensis R.Knuth
Primary Citation:
Pflanzenr. (Engler) IV, 219a: 24. 1939
Pflanzenr. (Engler) IV, 219a: 24. 1939
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Author: Scott A. Mori & Nathan P. Smith
Type: Colombia. Santander: Vicinity of Puerto Berrío, between Carare and Magdalena Rivers, alt 100-700 m, 10 Jul 1935 (fl), Haught 1834 (holotype, B fide Knuth; isotypes, F, US).
Description: Trees, to 5 m tall; leaf-bearing branches 3-7 mm in diam., the leaves tightly grouped at their ends. Leaves: petioles 50-95 mm, slender, 2-4 mm thick, subterete in cross section; blades narrowly ovate to elliptic to oblanceolate, 15-29 x 6-12.5 cm, glabrous, chartaceous, the base acute, the margins entire to serrulate, the apices acuminate to long acuminate; secondary veins in 13-17 pairs. Inflorescences suprafoliar, racemose, pubescent, with 1-5 flowers, the rachis 10-30 mm; pedicels 17-35 mm, subtended by a single lanceolate keeled bract 3 x 1.5-2 mm and bearing anywhere from the middle to directly below the hypanthium 2 ovate slightly keeled bracteoles 2-3 x 2-4 mm. Flowers 8-11.5 cm in diam.; hypanthium without costae, calyx-lobes 6, rounded, shallow, 2 mm x 5-6 mm, pubescent; petals (6-)8, oblanceolate, 35-45 x 15-25 mm, densely gray-pubescent in bud, puberulous at maturity, white; androecium actinomorphic, connate at base 10-12 mm high, the outermost filaments 12 mm long, the anthers 2-3 mm long, yellow; gynoecium 4-5 locular, pubescent, the summit densely white-woolly, the style very short, 0.5 mm, the stigma 4-5 lobed. Fruits cylindrical, without costae, 40-45 x30-35 mm, without persistent calyx. Seeds rounded in cross section, carunculate, 15-20 x 10-15 mm, 10 per fruit, with a narrow contorted funicle 10-15 x 2 mm.
Common names: Colombia: membrillo (Garcia 470). Brazil: geniparana (Oliveira 2199).
Distribution: This species is known from a single locality near the border beween the Departments of Santander and Antioquia between Puerto Berrio and Puerto Nare.
Ecology: Probably an understory tree in forest.
Phenology: Flowers have been collected in Jul. Fruits have been collected in Feb.
Pollination: No studies known but probably pollinated by bees as are most species of Gustavia that have been studied.
Dispersal: No reports of dispersal have been recorded.
Predation: No observations recorded.
Field characters: A small tree with long petioles of different lengths and suprafoliar inflorescences.
Taxonomic notes: Gustavia santanderiensis resembles G. nana subsp. rhodantha and G. romeroi in their vegetative features. In contrast to the other two species G. santanderiensis has suprafoliar inflorescences while the other two species have cauline inflorescences.
Conservation: IUCN Red List: Vulnerable B1+2c ver 2.3 (Calderon, E. 1998. Gustavia santanderiensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. www.iucnredlist.org. Downloaded on 03 March 2014.).
Uses: None known.
Etymology: The name refers to the region of Colombia where the type was collected.
Source: Based on Mori in Mori & Prance, 1979.
Author: Scott A. Mori & Nathan P. Smith
Type: Colombia. Santander: Vicinity of Puerto Berrío, between Carare and Magdalena Rivers, alt 100-700 m, 10 Jul 1935 (fl), Haught 1834 (holotype, B fide Knuth; isotypes, F, US).
Description: Trees, to 5 m tall; leaf-bearing branches 3-7 mm in diam., the leaves tightly grouped at their ends. Leaves: petioles 50-95 mm, slender, 2-4 mm thick, subterete in cross section; blades narrowly ovate to elliptic to oblanceolate, 15-29 x 6-12.5 cm, glabrous, chartaceous, the base acute, the margins entire to serrulate, the apices acuminate to long acuminate; secondary veins in 13-17 pairs. Inflorescences suprafoliar, racemose, pubescent, with 1-5 flowers, the rachis 10-30 mm; pedicels 17-35 mm, subtended by a single lanceolate keeled bract 3 x 1.5-2 mm and bearing anywhere from the middle to directly below the hypanthium 2 ovate slightly keeled bracteoles 2-3 x 2-4 mm. Flowers 8-11.5 cm in diam.; hypanthium without costae, calyx-lobes 6, rounded, shallow, 2 mm x 5-6 mm, pubescent; petals (6-)8, oblanceolate, 35-45 x 15-25 mm, densely gray-pubescent in bud, puberulous at maturity, white; androecium actinomorphic, connate at base 10-12 mm high, the outermost filaments 12 mm long, the anthers 2-3 mm long, yellow; gynoecium 4-5 locular, pubescent, the summit densely white-woolly, the style very short, 0.5 mm, the stigma 4-5 lobed. Fruits cylindrical, without costae, 40-45 x30-35 mm, without persistent calyx. Seeds rounded in cross section, carunculate, 15-20 x 10-15 mm, 10 per fruit, with a narrow contorted funicle 10-15 x 2 mm.
Common names: Colombia: membrillo (Garcia 470). Brazil: geniparana (Oliveira 2199).
Distribution: This species is known from a single locality near the border beween the Departments of Santander and Antioquia between Puerto Berrio and Puerto Nare.
Ecology: Probably an understory tree in forest.
Phenology: Flowers have been collected in Jul. Fruits have been collected in Feb.
Pollination: No studies known but probably pollinated by bees as are most species of Gustavia that have been studied.
Dispersal: No reports of dispersal have been recorded.
Predation: No observations recorded.
Field characters: A small tree with long petioles of different lengths and suprafoliar inflorescences.
Taxonomic notes: Gustavia santanderiensis resembles G. nana subsp. rhodantha and G. romeroi in their vegetative features. In contrast to the other two species G. santanderiensis has suprafoliar inflorescences while the other two species have cauline inflorescences.
Conservation: IUCN Red List: Vulnerable B1+2c ver 2.3 (Calderon, E. 1998. Gustavia santanderiensis. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. www.iucnredlist.org. Downloaded on 03 March 2014.).
Uses: None known.
Etymology: The name refers to the region of Colombia where the type was collected.
Source: Based on Mori in Mori & Prance, 1979.
Flora and Monograph Treatment(s):
Gustavia santanderiensis R.Knuth: [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 santanderiensis R.Knuth: [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.