Taxon Details: Gustavia gentryi S.A.Mori
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Family:

Lecythidaceae (Magnoliophyta)
Scientific Name:

Gustavia gentryi S.A.Mori
Primary Citation:

Fl. Neotrop. Monogr. 21(1): 174. 1979
Accepted Name:

This name is currently accepted.
Type Specimens:

Specimen 1: Isotype -- A. H. Gentry
Specimen 2: Isotype -- A. H. Gentry
Description:

Author: Scott A. Mori & Nathan P. Smith

Type: Colombia. Chocó: Upper Rio Truandó, La Teresita (INDERENA camp), alt ca 100 m, 18 Jan 1974 (fl), Gentry 9318 (holotype, MO 2272189; isotypes, NY, others to be distributed).

Description: Trees, to 8 m tall; branches below leaves 3-6 mm diam., leaves at the ends of the branches, in 1 or 2 whorls. Leaves: petioles subsessile to 1 cm long, 2-3 mm thick, semicircular in cross section; blades narrowly elliptic to oblanceolate, 18-31 x 6-8.5 cm, glabrous, chartaceous, the base acute, the margins serrulate to serrate, the apex acuminate; secondary veins in 13-20 pairs. Inflorescences cauline or axillary, compact, racemose, the rachis 11-20 mm, with 2-7 flowers; pedicel 25-30 mm, the bract basal, caduceus, the bracteoles 2, lanceolate, 2-3.5 x 2 mm, inserted at or below the middle. Flowers 8-10 cm diam.; hypanthium smooth, puberulous; calyx-lobes 4, rounded to triangular, 2.5-3.5 x 6-7 mm glabrous; petals 8, narrowly obovate, 44 x 20 mm, puberulous at anthesis, rose to red or purple; androecium actinomorphic, connate at base to 10-11 mm high, the external filaments 12-16 mm, the anthers 2-2.7 mm; gynoecium with 4-locular ovary, the ovary summit white-tomentose. Fruits incompletely known, probably globose, 55 x 60 mm, calyx lobes not persistent. Seeds triangular in cross section, 22 x 21 mm, caruncle and funiculous absent.

Common names: None known.

Distribution: Known from Colombia in the states of Antioquia and Chocó.

Ecology: -

Phenology: Flowers have been collected in Jan, Feb, Mar, and Nov. Fruits have been collected in Jul.

Pollination: No reports of pollination have been recorded.

Dispersal: No reports of dispersal have been recorded.

Predation: No observations recorded.

Field characters: The distinguishing features of this species are 1) the subsessile to short petiolate, relatively small, serrulate or serrate leaves grouped in 1 or 2 tightly compacted verticils at the branch ends; 2) the axillary or less frequently cauline inflorescences; and 3) the rose to red or purple petals.

Taxonomic notes: Other species of Gustavia from extreme northwestern Colombia either have longer leaves (G. excelsa, G. gracillima, G. grandibracteata, G. monocaulis, G. superba), longer and more distinct petioles (G. latifolia, G. nana, G. romeroi, G. santanderiensis), suprafoliar inflorescences (G. dubia, G. grandibracteata, G. longifuniculata, G . monocaulis, G. santanderiensis, G. sessilis, G. verticillata>), winged hypanthia and 6 instead of 4 calyx lobes (G. dubia, G. Longifuniculata), or 12 or 18 petals instead of 8 (G. romeroi).

Conservation: IUCN Red List: Not on list (March 2014).

Uses: None known.

Etymology: This species was named in honor of A. H. Gentry.

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

Flora and Monograph Treatment(s):

Gustavia gentryi 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.