Guatteria sp. B

22. Guatteria sp. B — Fig. 23; Map 1

Guatteria sp. B Murillo A. & Restrepo (2000) 119, f. 36.

Tree (5–) 13–16 m tall, diam not recorded; young twigs densely to rather densely covered with long-persistent, erect, rough

Fig. 23 Guatteria sp. B . a. Sterile specimen; b. indument, detail of a; c. young flower (a, b: Duque & Posada 4189; c: Murillo A. et al. 510, all U). 143 hairs up to 3 mm long. Leaves: petiole 3 –5 mm long, 2– 4 mm diam; lamina narrowly elliptic to narrowly obovate, 15– 26 by 4–7 cm (leaf index 3– 5), chartaceous, very densely verruculose, dull, brown to greyish brown above, brown below, sparsely covered with erect hairs, mainly along primary vein above, densely covered with erect, rough hairs to 3 mm long below, base obtuse, apex long-acuminate (acumen 10– 20 mm long), primary vein impressed above, secondary veins distinct, 16– 22 on either side of primary vein, impressed above, forming a distinct marginal vein, smallest distance between marginal vein and margin 2– 4 mm. Flowers in 1-flowered inflorescences in axils of leaves; pedicels (3–) 11 mm long, 1–2 mm diam, densely covered with long-persistent, erect, rough hairs up to 3 mm long, articulated at c. 1 mm from the base (fide Murillo A. & Restrepo 2000), bracts 5–11 by 4– 6 mm; flower buds ovoid; sepals free, ovate to broadly ovate, 8 –10 by 5– 8 mm, appressed, apex acuminate, outer side densely covered with erect, brown hairs; petals green to white in vivo, oblong-ovate to elliptic, 8 –15 by 4–7 mm, outer side densely covered with erect, woolly hairs; stamens 1.5 – 2 mm long, connective shield papillate. Monocarps purplish black in vivo, ellipsoid, c. 16 by 9 mm, sparsely covered with erect hairs, apex apiculate, stipes c. 20 by 1 mm (fide Murillo A. & Restrepo 2000). Seed not seen.

Distribution — Amazonian Colombia (Amazonas, Caquetá).

Habitat & Ecology — In non-inundated forest, on clayey to sandy soil. At elevations of up to 300 m. Flowering: July, November; fruiting: January.

Vernacular names — Colombia: Buruchicu (Muinane) ( Van Andel et al. 161), Carguero (Muinane), Duj+ku (Uitoto), J+d+ra (Uitoto) ( Cárdenas et al. 4064), Ñaajeku (Muinane) ( Murillo A. et al. 510).

Other specimens examined. COLOMBIA, Amazonas, Villa Azul, Río Caquetá, Van Andel et al. 161 (U); Puerto Santander, Monochoa, Cárdenas et al. 4064 (COAH, U); Río Caquetá, Leticia, Villa Azul, 200–270 m, Duque & Posada 4189 (U); right margin of Río Caquetá,Quebrada Bocaduche, Murillo A. et al. 510 (COAH, COL,U). Caquetá, Municipio Solano,Río Mesay,raudal Masaca, 300 m, Cárdenas et al. 6772 (COAH, U).

Notes — This as yet undescribed species looks similar to G. hispida as to the leaf shape and the dense indument of stiff, erect hairs. It differs from the latter by the presence of a distinct marginal leaf vein, while in G. hispida the leaves do not show a marginal vein. There is scanty flowering material, only representing flowers in young stage. Murillo A. & Restrepo described fruiting material as well, but we did not see that. Altogether, it seems wisest at the moment not to formally publish a new species.

Murillo A. & Restrepo (2000) attribute the collection Stein et al. 4002 (MO, U) from Loreto, Peru, to this as yet undescribed species as well. Actually, it is the type collection of G. grandipes .