Exostyles godoyensis Soares-Silva & Mansano

Vidal de Freitas Mansano, & Lewis, G. (2004). A Revision of the Genus Exostyles Schott (Leguminosae: Papilionoideae). Kew Bulletin, 59(4), 521-529. doi:10.2307/4110906

Type

Brazil, Paraná, Londrina: Parque Estadual Mata dos Godoy, L. H. Soares-Silva & F C. Silva 208 (holotype UB!, isotypes FUEL!, RB!).

Morphology General Habit

Tree 20 m

Morphology General Bark

Bark peeling off in plates with involute margins; cortex cream

Morphology Leaves Stipules

Stipules 1.5 - 3.5 x 0.2 - 0.5 mm, oblong, branched to marginally dentate, pubescent; leaves imparipinnately 5(- 6)-foliolate; petiole 2 - 7 mm long, canaliculate, pubescent; rachis 1.9 - 4.2 cm long, canaliculate, pubescent; stipels 1 - 3 x 0.1 - 0.4 mm, oblong, persistent after leaflet drop; petiolules 1 - 1.5 mm long, pubescent; lateral leaflets 1.5 - 5.1 x 0.5 - 2.6 cm, elliptic, the terminal one larger than the others, midvein pubescent on both surfaces, abaxially prominent, margin dentate, base oblique, apex acuminate

Morphology Reproductive morphology Inflorescences

Raceme 1.5 - 4 cm long, axillary, axis tomentose; bracts 1 - 2.2 x 0.8 - 1 mm, narrowly ovate, ciliate; bracteoles c. 1 x 0.3 mm, narrowly ovate, ciliate, attached to the lower half of the pedicel; pedicel c. 0.8 - 1.6 cm long, sparsely tomentose; buds 4 - 6.3 x 2 - 2.6 mm, sparsely tomentulose

Morphology Reproductive morphology Flowers

Flowers with hypanthium c. 3 - 4 mm deep; calyx 3-lobed, brownish, glabrous internally; petals 5, white, the claws 0.5 - 0.8 x 0.3 mm, blades 3.6 - 4.5 x 1.8 - 2.5 mm, oblong, glabrous, apex retuse; stamens 10, filaments c. 2 - 3.5 x 0.3 - 0.5 mm, white, glabrous, anthers 2 - 2.5 x 0.4 - 0.7 mm, narrowly ovate to ovate, glabrous; ovary 2.6 - 4 x 0.9 - 1.5 mm, oblong, 6 - 8-ovulate, glabrous, stipe c. 2.5 mm, glabrous, style 1 - 1.5 mm long, straight, terminal, glabrous; stigma punctiform

Morphology Reproductive morphology Fruits

Fruit 4 - 6 x 2 - 2.5 x 1.2 - 2 cm, indehiscent, pale yellow in the field, brown to black when dried, glabrous externally, pulp slightly sweet; seeds 3 - 4 per fruit, reniform, c. 1.5 x 1.2 cm, testa thin, whitish; embryo whitish, with cotyledons fused.

Distribution

This species is geographically disjunct from all other species in the genus. While Exostyles glabra and E. venusta occur from coastal Bahia to Rio de Janeiro and E. amazonica occurs in the Amazon, this new species is restricted to the state of Paraná.

Ecology

Submontane semideciduous forest (sensu Oliveira- Filho & Ratter 1995).

Phenology

Flowering from February to July and fruiting from July to September.

Note

Exostyles godoyensis differs from all other species of the genus in having only 5 (- 6) leaflets per leaf (vs. 7 - 11 per leaf); it differs from E. amazonica in having a glabrous (not sericeous) ovary and shorter stamen filaments and ovary stipe, and from E. glabra and E. venusta by its shorter anthers.