Tovomita iuruensis L. Marinho, 2025

30. Tovomita iuruensis L. Marinho , sp. nov. – Fig. 51.

Holotype: Brazil, Acre, Cruzeiro do Sul, Reserva Extrativista do Alto Rio Juruá, Seringal São João , Colocação Tapaúna , 09°12'S, 72°41'W, moist terra firme forest on tertiary sediments, terrain hilly, dissected by deep, narrow stream beds, 14 Mar 1992, fl. ♂, D. C. Daly & al. 7414 ( INPA [no. 176381]!; isotypes: MO [ MO101048803 ], NY [ NY02878130 ]!, UFACPZ [no. 4892]). GoogleMaps

Suggested vernacular name — sapateiro-do-acre ( Brazil).

Diagnosis — Tovomita iuruensis is similar to T. foldatsii , from which it can be distinguished by 7–8 (vs 11–16) pairs of secondary veins, lax inflorescence with up to 80 flowers (vs up to 39 flowers in T. foldatsii ), and smaller floral buds (4.5–6 vs 8–15 mm long in T. foldatsii ).

Description — Trees up to 12 m tall, prop roots not seen; exudate yellow, abundant. Petiole 2.3–3.1 cm long, smooth, coloration not seen, lenticels absent. Leaf blades 9.5–19 × 2.6–8.2 cm, copper-coloured in sicco, black dots absent, subcoriaceous, broadly elliptic to oblong, base convex to decurrent, apex convex to acuminate; papillae, fungal spots and lenticels absent; exudate canals inconspicuous. Venation: secondary veins 7–8 pairs, 15–31 mm apart from each other, forming angle 60°–65° to midvein, slightly prominent adaxially, prominent abaxially, arcuate near margin; intersecondary veins present, two or rarely three per intercostal area, thinner than secondary ones, almost connecting to major secondaries, <50 % of subjacent secondary; tertiary veins percurrent, perpendicular; intramarginal vein present. Inflorescences: ♂ lax cyme with 3 basal branches and up to 80 flowers, with terminal flower, ♀ not seen, calyptrae and lenticels absent. Pedicel 7.5–12 mm long, coloration not seen, distal portion thin, proximally articulated on lateral flowers of dichasia, calyptrae absent, lenticels absent. Floral buds 4.5–6 mm long, ovoid, apex apiculate, lenticels absent, not blackened in sicco. Sepals 4, 5.5–6.5 × 3–3.5 mm, ovate to oblong, apex apiculate to acute, coloration not seen; petals 4, 5–7.3 × 2.8–3.5 mm, oblong, apex rounded, deflexed, white. Staminate flowers: stamens c. 45, 4–5 mm long, heterodynamous; filaments terete, white; anthers c. 0.6 mm long; pistillode absent. Pistillate flowers and capsules not seen.

Distribution — Brazil (Acre). Tovomita iuruensis occurs in terra-firme forest. The species is known only from two collections in Cruzeiro do Sul municipality, Acre state. Possibly the species also occurs in Peru. Fig. 52.

Suggested conservation status — We assessed the conservation status of the species as Data Deficient ( DD), as the species is so far known only from two localities at the same municipality.

Etymology — The specific epithet refers to the type locality of the species, the Juruá river basin. Juruá comes from Iuruá, which in Guarani language means “river with a wide mouth”.

Fig. 46. Distribution map of Tovomita guianensis – Amazon Basin (light grey), Atlantic forest

(dark grey), Guiana Shield (dark grey striped). Recognition and discussion — The most distinctive feature Description — Shrubs or trees up to 15 m tall, prop of Tovomita iuruensis is the lax inflorescence with many roots conspicuous; exudate yellow, scarce. Petioles flowers ( Fig. 51), which is common to T. umbellata . The 1.1–1.4 cm long, green, smooth, lenticels absent. Leaf new species can be differentiated from T. umbellata by the blades 6.6–29.2 × 2.1–9.6 cm, dark brown to coppernumber of secondary veins (7–8 pairs [ Fig. 13I] vs 10–16 coloured in sicco, chartaceous, elliptic, base decurrent, pairs in T. umbellata [ Fig. 14Q]). Tovomita iuruensis is apex acuminate; young leaves abaxially covered with also morphologically similar to T. foldatsii and T. macro- papillae, ferruginous in sicco; lenticels and fungal spots phylla due to the large leaves and ovoid floral buds with an absent; exudate canals inconspicuous. Venation: secapiculate apex; from these two species it can also be dis- ondary veins 6–7(–12) pairs, 8–35 mm apart from each tinguished by the number of secondary veins (7–8 pairs vs other, forming angle 50°–60° to midvein, immersed 11–16 pairs in T. foldatsii [ Fig. 12T] and 10–11(–18) pairs in both surfaces, arcuate and connecting to secondary in T. macrophylla [ Fig. 13O]), and the lax inflorescence ones; intersecondary veins present, one or two per inwith up to 80 flowers (vs up to 39 flowers in T. foldatsii tercostal area, much thinner than secondary veins, dis- and up to 45 flowers in T. macrophylla ). Moreover, the tal course reticulating,> 50 % of subjacent secondary floral buds of T. iuruensis are considerably smaller than length; tertiary veins percurrent, perpendicular; intrathose of T. foldatsii (4.5–6 mm long vs 8–15 mm long). marginal vein present. Inflorescences: ♂ lax cyme 3 or