Stryphnodendron occhionianum E.M.O. Martins (1972: 121)

Scalon, Viviane Renata, Paula-Souza, Juliana De, Lima, Alexandre Gibau De & Souza, Vinicius Castro, 2022, A synopsis of the genus Stryphnodendron (Fabaceae, Caesalpinioideae, mimosoid clade), Phytotaxa 544 (3), pp. 227-279 : 251

20. Stryphnodendron occhionianum E.M.O. Martins (1972: 121) .

— Type : BRAZIL. Pará , Rodovia Belém–Brasília km 306, 10 March 1960, Oliveira 997 (holotype IAN 106945 !, isotypes NY!, UB!)

Trees 16–21(–26) m tall; branch nectaries absent. Leaves with 2–4 pairs of pinnae, opposite; 2–4 pairs of leaflets, opposite; petiolar nectary 1, verruciform with an elongated base, sometimes with a circular and slightly concave apex; leaflets (3.5–)5–10(16.5–) × (2–)2.8–5(–7.5) cm, apex usually round, sometimes obtuse, very rarely acute to truncate, margin revolute, sometimes undulate, coriaceous, subconcolor, upper surface glabrous, lower surface puberule to pubescent, unilateral tuft of trichomes on lower surface absent. Sinflorescence a pleiothyrsus, rarely a diplothyrsus; cymulae of solitary to ternate spikes, spike 3.5–5.5(–8) cm long; spike prophylls late deciduous, 4–7 mm long. Flowers monoclinous or diclinous, purplish, anther gland sessile. Fruit a nucoid legume, straight, turgid, moniliform, 8.5–11.5 × 1.5–1.8 cm, valves coriaceous, reddish dark-brown and ferruginous-pulverulent, glabrescent.

Vernacular names: — Taxirana, Tachi-rana, Caicubi ( Brazil, Amazonas).

Distribution and habitat: — Stryphnodendron occhionianum is endemic to terra firme forests in Northern Brazil. With restricted distribution and few individuals sampled, S. occhionianum occurs in two Amazonian phytogeographic provinces: the Atlantic Coast province (Pará and Amapá states) near the mouth of the Amazonas river, and the Roraima province (north limit with the Guiana Shield).

Conservation: —Least Concern (LC) [AOO= 24.000 km 2, EOO= 285,468.525 km 2].

Phenology: —The species was collected with flowers in August and with fruits in June and August and November.

Selected specimens examined: — BRAZIL. Pará: Região do Jari, estrada entre Planalto A e Tinguelim , km 15, 07 August 1970, N.T. Silva 3260 ( IAN). Rondônia: Porto Velho, ao longo da BR 364, 8 km E de Jaci-Paraná, ramal 1 km S, linha de transmissão Jirau-Porto-Velho, 27 June 2012, fl., M.F. Simon 1597 ( CEN, RON) .