Trischidium limae (R.S.Cowan) H.E.Ireland

Ireland, H. (2007). Taxonomic Changes in the South American Genus Bocoa (Leguminosae-Swartzieae): Reinstatement of the Name Trischidium, and a Synopsis of Both Genera. Kew Bulletin, 62(2), 333-349. Retrieved from http://www.jstor.org/stable/20443359

Type

Brazil, Bahia, Salvador, Areias em torno da Lagôa do Abaeté, 26 Jan. 1965, A. Lima 65 4270 (holotype US!; isotype IPA).

Morphology General Habit

Tree about 5 m tall, flowering and fruiting with the leaves

Morphology Stem

Young branchlets shortly pubescent, glabrescent; older branchlets glabrous

Morphology Leaves

Leaf rachis 6 - 72 mm long, shortly pubescent, glabrescent, shallowly grooved above; petiole 4 - 15 mm long; leaflets 1 - 5, elliptic-lanceolate, tapered to a rounded point apically, glabrous, dark lustrous above, glabrous, slightly paler beneath, terminal leaflet largest, 100 - 140 mm long, 39 - 65 mm wide, the lateral leaflets 60 - 83 mm long, 32 - 45 mm wide; petiolule 2 - 2.5 mm long, 1 mm wide, sparsely pubescent, glabrescent

Morphology Reproductive morphology Inflorescences

Inflorescences axillary, single or in small clusters of two or three, 6- 14 mm long, the axis shortly and densely ferruginous pubescent; floral bract about 0.5 mm long, deltoid, often persistent in fruit; pedicel 3 - 4 mm long, minutely strigose

Morphology Reproductive morphology Flowers

Flower fragrant; calyx splitting into 3 or 4 segments to within about 2 mm from the base of the calyx, the segments recurved, sparsely strigose externally, glabrous internally, caducous in fruit; petal white, blade 4 - 7 mm long, 3.5 - 5 mm wide, claw 1.5 - 2.5 mm long; stamens 6 - 11, anthers 3 - 4 mm long, filaments 1 - 1.5 mm long; ovary and immature fruit glabrous, style c. 4 mm long, glabrous, persistent in fruit

Morphology Reproductive morphology Fruits

Fruit body 14 - 24 mm long excluding remnants of the style, 12 - 20 mm wide, 8 - 11 mm broad, glabrous, stipe 3 - 5 mm long

Morphology Reproductive morphology Seeds

Seed ellipsoid, dark brown, 7 - 7.5 mm long, c. 4 mm wide, 2.5 - 3 mm deep.

Distribution

Northeastern Brazil (Bahia, Pernambuco).

Ecology

Wet forest, on sandy clay soil.

Vernacular

Feijao brabo (Brazil).

Phenology

Flowering time: Feb.

Note

Trischidium limae is morphologically similar to T. alternum and Cowan (1974) noted that they are probably closely related. It differs in having shorter inflorescences, calyx segments that do not open to the base, a persistent petal, fewer stamens, more prominent leaflet venation and a longer stipe. It is also geographically isolated, because T. alternum grows in northern Brazil, Guyana and Peru whilst the distribution of T. limae is restricted to eastern coastal regions of Bahia and Pernambuco (Brazil). It also resembles some specimens of T. racemulosum (q.v.). Trischidium limae is poorly collected, and additional collections of this species are desirable. In honour of Dardano de Andrade-Lima (1919- 1981), botanist at Herbarium Bradeanum, Rio de Janeiro, who specialised in dryland plants from northeastern Brazil, especially Leguminosae, and who collected the type specimen of this species.

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/189604691/189604695

Conservation

EN - endangered

International Legume Database and Information Service

Conservation

Insufficiently known

Morphology General Habit

Perennial, Not climbing, Shrub

Vernacular

Feijao Brabo