Guatteria trichocarpa Erkens & Maas

20. Guatteria trichocarpa Erkens & Maas View in CoL — Fig. 21, 22; Map 3

Guatteria trichocarpa Erkens & Maas (2008) View in CoL 404. — Guatteriella tomentosa R.E.Fr. (1939) View in CoL 541, f. 39; Murillo A. & Restrepo (2000) 124, f. 38. — Type: Ducke RB 3916 (holo S; iso RB), Brazil,Amazonas, São Paulo de Olivença, Rio Solimões, 25 Feb. 1932; not Guatteria tomentosa Rusby (1910) View in CoL .

Tree or shrub 3 –20 m tall, 12 –80 cm diam; young twigs densely covered with a velutinous indument of erect and appressed

Fig. 21 Guatteria trichocarpa Erkens & Maas. Flowering specimen ( Cid et al. 9987, U).

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Fig. 22 Guatteria trichocarpa Erkens & Maas. a. Flower, detail of fig. 21; b. detail of fruiting pedicel and two monocarps (a: Cid et al. 9987; b: Cid et al. 8547, all U).

long-persistent hairs. Leaves: petiole 5 –10 mm long, 1– 4 mm diam; lamina narrowly oblong-ovate, 18– 30 by 4– 8 cm (leaf index 2.6 –4.5), chartaceous, rather densely to sparsely verruculose, greyish to blackish brown above, brown below, glabrous above, but hairy primary vein densely covered with erect, brown hairs, densely covered with appressed and erect, brown hairs 3 – 4 mm long below, base obtuse to rounded, apex acuminate (acumen 15– 30 mm long), primary vein impressed above, secondary veins distinct, 15– 30 on either side of primary vein, raised above, smallest distance between loops and margin 1–3 mm. Flowers solitary in axils of leaves; pedicels 5 –12 mm long, 2 mm diam, fruiting pedicels 12–20 mm long, 4 – 5 mm diam, densely covered with appressed, brown hairs, articulated at 0.5 – 0.8 from the base, bracts c. 6, very broadly ovate, to c. 4 mm long; flower buds ovoid; sepals free, broadly ovate-triangular, 7–10 by 6 – 8 mm, appressed, outer side densely covered with appressed, brown hairs; petals greenish yellow to yellow in vivo, ovate to oblong-ovate, 15– 27 by 10–15 mm, outer side densely covered with appressed, brown hairs; stamens 1.5 – 2 mm long, connective shield densely covered with erect hairs. Monocarps 15–25, green in vivo, brown in sicco, ellipsoid, 19– 30 by 10–15 mm, densely covered with appressed, brown hairs, apex rounded, wall 1–3 mm thick, stipes 3 –8 by 3– 5 mm. Seed ellipsoid, 16– 20 by 8 – 9 mm, dark brown, longitudinally and transversely striate.

Distribution — Colombia and Brazil (both Amazonas).

Habitat & Ecology — In non-inundated forest, on clayey to sandy soil, one collection from caatinga on white, sandy soil. At elevations below 200 m. Flowering: December, January; fruiting: November.

Vernacular names — Colombia: Butruchicu (Muinane) ( Murillo A. & Rodríguez A. 538), K+y+meko (Miraña).

Other specimens examined. BRAZIL, Amazonas, Upper Rio Solimões, Mun. São Paulo de Olivença, road to Bom Fim, Cid et al. 8547 (U); Mun. Tabatinga, Estrada do INCRA, branch parallel to Geodésia, Cid et al. 9987 (U); Tabatinga, Estrada do INCRA, 6 km NE of Avenida Internacional, Daly et al. 4494 (U); São Paulo de Olivença, Creek Belém, Krukoff 8765 (NY). – COLOMBIA, Amazonas, Peña Roja, Río Caquetá, Murillo A. & Rodríguez 538 (COAH, COL, U); Puerto Santander, trocha hacia Ciudad Perdida por Monochoa, Murillo A. et al. 699 (COAH, COL); trocha a La Chorrera, Murillo A. et al. 753, 760 (COAH. COL); Villazul, Río Caquetá, Murillo A. et al. 872 (COAH, COL).

Note — Guatteria trichocarpa can be recognized by a dense indument of appressed to erect, brown hairs on most parts of the plant. Furthermore, it is characterized by large, thick-walled monocarps, with short stipes up to 5 mm diam. The elongation of the fruiting pedicel is caused by growth of the part below the articulation, rather than growth of the upper part as is most commonly seen in Guatteria .