Tovomita duckei Huber

Marinho, Lucas Cardoso, Fiaschi, Pedro & Amorim, André Márcio, 2025, Taxonomic revision of the neotropical genus Tovomita (Clusiaceae), Willdenowia 55 (1), pp. 145-258 : 182-184

17. Tovomita duckei Huber in Bull. Soc. Bot. Genève 6: 189. 1915. – Lectotype (designated here) or perhaps holotype: Brazil, [Pará, Óbidos], hab. in silvis ad fl. Cumina-mirim , 16 Dec 1906, A. Ducke 7977 (RB [ RB00539002 ]!).

= Tovomita micrantha A. C. Sm. in Phytologia 1: 123. 1935, syn. nov. – Lectotype (designated here): Brazil, [Amazonas], terra firme near mouth of Rio Embira (tributary Rio Tarauaca), basin of Rio Jurua, [ 07°30'S, 70°15'W], 28 Jun 1933, B. A. Krukoff 5071 (NY

[ NY00578991 ]!; isolectotypes : A [ A00067913 ] !, G [ G00355500 ] photo !, G photo!).

Description — Trees up to 15 m tall, prop roots not seen; exudate yellow, abundant. Petioles 0.8–2.7 cm long, coloration not seen, smooth, lenticels absent. Leaf blades 10–22 × 4.5–12.3 cm, brown-orangish in sicco, black dots absent, coriaceous, oblong to ovate, base decurrent, apex acuminate; papillae, lenticels and fungal spots absent; exudate canals inconspicuous. Venation: secondary veins 10–15 pairs, 6–15 mm apart from each other, forming angle 50°–55° to midvein, prominent abaxially, immersed adaxially, arcuate near margin; intersecondary veins present, one or two per intercostal area, much thinner than secondary veins, parallel to major secondary,> 50 % of subjacent secondary length; tertiary veins percurrent sinuous; intramarginal vein absent. Inflorescences: ♂ lax cyme with 5 basal branches and up to 97 flowers, with terminal flower, ♀ cyme with 3 basal branches and up to 9 flowers, lenticels absent. Pedicels 4–5 mm long, green, distal and proximal portion with same gauge, proximally articulated on lateral flowers of dichasia; calyptrae and lenticels absent. Floral buds 3–4 mm long, spheroid, apex rounded to apiculate, lenticels absent. Sepals 4, 3–4.5 × 3–4 mm, ovate to oblong, apex rounded, greenish to pale yellow; petals 4, 2.8–3 × 1.5–1.8 mm, oblong, apex rounded, position not seen, greenish. Staminate flowers: stamens 25– 30, 1.3–3.5 mm long, heterodynamous; filaments terete, white; anthers 0.3–0.5 mm long, connective not exceeding thecae; pistillode inconspicuous. Pistillate flowers not seen. Capsules fleshy, 3–4.3 × 0.9–2.6 cm, 4-septate, pyriform when closed, not costate or lobed, rostrum absent, free styles c. 3 mm long, epicarp smooth, slightly verruculose, coloration not seen; sepals, petals, staminodes and stigmas persistent. Aril coloration not seen.

Distribution — Bolivia ( La Paz), Brazil ( Acre, Amazonas, Pará), Colombia ( Vaupés), Peru ( Loreto). Fig. 30.

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

Nomenclatural notes — To designate the lectotype, we followed the same reasoning adopted for T. albiflora and T. caloneura , both of which were described by A. C. Smith.

Recognition and discussion — Tovomita duckei has the arrangement of secondary veins similar to that of T. guianensis ; however, T. duckei has wider ( 4.5–12.3 cm), brown-orangish leaves in sicco (vs 1.8–7.5 cm wide, dark brown leaves in T. guianensis ). The floral buds of T. duckei are small ( 3–4 mm long), spheroid, and with rounded apex, comparable to those of T. gracilipes , T. guianensis , and T. schomburgkii , but it can be distinguished from all of those species by the brown-orangish leaves in sicco.

Specimens examined — BOLIVIA: LA PAZ: Province Larecaja, Tuiri, near Mapiri , on left bank of Río Mapiri , 490–750 m, 12–30 Sep 1939, fr., B . A . Krukoff 10950 ( A!, NY!, UC!); ibid., Copacabana (about 10 km south of Mapiri ), 850–950 m, 8 Oct–15 Nov 1939, fr., B . A . Krukoff 11043 ( K!, NY!, UC!) . — BRAZIL: ACRE: Brasileia, estrada para Assis Brasil km 20, 3 Nov 1980, bud, C . A. Cid & al. 3119 ( INPA!); Sena Madureira, estrada Manuel Urbano, Rio Caeté , 10 Sep 1978, bud, J . Lima & al. 162 ( INPA!); ibid., J . Ramos & al. 165 ( INPA!); ibid., Seringal Camaru, Rio Caeté , 18 Sep 1978, bud, J . Ramos & al. 629 (INPA!); AMAZONAS: regição do Rio Madeira, Rio Canumã , 5 Nov 1957, bud, R . L . Fróes 33765 ( IAN!) . — COLOMBIA: VAUPÉS: Taraira, Estación Biológica Caparú , 01°04'36"S, 69°30'54"W, 100 m, 17 Jan 2008, fr., A . Cano 58 ( COAH!) . — PERU: LORETO: Prov. Mariscal Ramón Castilla , 02°51'53.5"S, 71°24'54.1"W, 140 m, M . A . Ríos & al. 523 ( F photo!) .