Tovomita longirostrata L. Marinho

35. Tovomita longirostrata L. Marinho View in CoL in Brittonia 70: 407. 2018. – Holotype: Brazil, Rondônia, Porto Velho, Represa Samuel   GoogleMaps , along igarapé Japim   GoogleMaps , c. 2 hours upstream from dam by boat, 08°49'S, 63°20'W, 18 Jun 1986, W. W. Thomas & al. 5176 (NY [ NY01416574 ]!; isotypes: INPA [no. 151606]!, MO).

Description — Trees up to 12 m tall, prop roots inconspicuous; exudate yellow, scarce. Petioles 0.7–1.1 cm long, green, smooth, lenticels absent. Leaf blades 3.7–9.2 × 0.7–1.9 cm, brownish in sicco, black dots absent, subcoriaceous, narrowly elliptic, base decurrent, apex acuminate; young leaves covered by papillae abaxially with ferruginous aspect in sicco, lenticels and fungal spots absent; exudate canals immersed, inconspicuous adaxially, as continuous blackish lines on abaxial surface in vivo and in sicco, crossing secondary veins. Venation: secondary veins 13–14 pairs, 2–4 mm apart from each other, forming angle 55°–65° to midvein, immersed abaxially, slightly prominent adaxially, straight near margin; intersecondary veins present, one per intercostal area, similar to secondary veins, parallel to major secondary,> 50 % of subjacent secondary length; tertiary veins inconspicuous; intramarginal vein present. Inflorescences: ♂ lax cyme with 5 basal branches and up to 87 flowers, lacking terminal flower, ♀ cyme with 3 basal branches and up to 9 flowers, lenticels absent. Pedicels 5.5–9 mm long, green, distal portion slightly dilated, proximally articulated on lateral flowers of dichasia; calyptrae and lenticels absent. Floral buds 6–8 mm long, ovoid, apex rostrate, rostrum present, 2–3 mm long, curved, lenticels absent. Sepals 2, 6–7.8 × 3.5–4 mm, triangular, apex rostrate, green-yellowish exudate canals well marked; petals 4, 4.5–7 × 0.7–2 mm, linear, position not seen, apex rostrate to acute, coloration not seen. Staminate flowers: stamens c. 40, 4–5.3 mm long, heterodynamous; filaments terete, white; anthers c. 0.3 mm long, connective not exceeding thecae; pistillode not seen. Pistillate flowers: staminodes c. 25, 2–3 mm long, white; ovary c. 1.7 mm long, not costate, slightly lobed, 4-locular, white to brownish, styles free c. 2.8 cm long, stigmas 4, 0.2–0.3 mm in diam. Capsules fleshy, 7–7.6 × 4.5–6 cm, 4-septate, napiform to pyriform when closed, not costate, slightly lobed, fused portion of styles forming a rostrum, c. 7 mm long, free styles portion, c. 6 mm long, epicarp asperous, lenticels present, greenish with brown marks when immature and mature, mesocarp pinkish becoming red; sepals, petals, and staminodes caducous, stigmas persistent. Aril red. Fig 59.

Iconography — Illustration available in Marinho (2018: 408).

Distribution — Brazil (Amazonas, Rondônia). Fig. 60.

Conservation status — Data Deficient (DD, Marinho & Beech 2019).

Recognition and discussion — Tovomita longirostrata is morphologically similar to T. stergiosii , sharing with this species the narrowly elliptic leaf blades and ovoid floral buds. These two species can be differentiated by the long rostrate apex of the floral bud (vs mucronulate in T. stergiosii ), number of stamens (c. 40 vs c. 24 in T. stergiosii ), and epicarp texture (asperous [ Fig. 59C] vs smooth in T. stergiosii ) (see Table 1).

Specimens examined — BRAZIL: AMAZONAS: Humaitá, estrada Humaitá – Jacarecanga, km 45, Rio Maici-Mirim , 07°45'S, 62°32'W, 19 Jun 1982, fl. ♀, L. O. A GoogleMaps . Teixeira & al. 1241 ( INPA!, MG!, RB!); without municipality, BR 319 , km 378 Manaus – Porto Velho road, on bank of Rio Jutaí , 15 Oct 1974, fl., G. T . Prance & al. 22943 ( INPA!) . RONDÔNIA: Porto Velho, Usina Hidroelétrica de Samuel , estrada paralela ao dique da margem direita, km 46, 4 Aug 1987, fl. ♂, fr., F . Dionízia & al. 27 ( INPA!, NY!); ibid., forest at end of right dike road, 09°05'S, 63°13'W, 13 Jun 1986, fl., W. W GoogleMaps . Thomas & al. 5080 ( INPA!, NY!); Guajará-Mirim , ramal de acesso à sede do ICMBio, 20 Oct 2017, fr., I . Mendes-Silva & al. s.n. ( RON photo!) .