119. Guatteria pannosa Scharf & Maas — Map 22 Guatteria pannosa Scharf & Maas in Scharf et al. (2006a) 125, f. 5. — Type: Barrier & Feuillet 2633 (holo CAY; iso K 2 sheets, NY, P, U, US), French Guiana, Approuague River, Arataye River, Sauts Pararé, 12 Feb. 1981. Tree 4–25 m tall, over c. 8 cm diam; young twigs densely covered with erect, curly, brown, long-persistent hairs. Leaves: petiole 6–8 mm long, 1–2 mm diam; lamina narrowly oblong-elliptic, rarely elliptic, 10–20 by 2.5–5 cm (leaf index 3.2–4), coriaceous, not verruculose, greyish green above, pale brown below, glabrous above, but primary vein with some wavy hairs, densely covered with appressed, brown to white hairs below, base acute, apex acuminate (acumen 5–10 mm long), primary vein impressed above, secondary veins distinct, 10 –15 on either side of primary vein, raised above, smallest distance between loops and margin 2–3 mm, tertiary veins raised above, reticulate. Flowers in 1–2-flowered inflorscences in axils of leaves or on leafless branchlets; pedicels 8–10 mm long, c. 1 mm diam, fruiting pedicels to c. 15 mm long, c. 3 mm diam, densely covered with a velutinous indument of erect, curly, brown hairs, to subglabrous, articulated at 0.3–0.5 from the base, bracts not seen and not counted; flower buds depressed ovoid, distinctly pointed; sepals free, ovate-triangular, 8–10 by 5–6 mm, appressed to spreading, outer side densely covered with a velutinous indument of erect, curly, reddish brown hairs; petals greenish red in vivo, narrowly triangular, 20–25 by 6–8 mm, outer side densely covered with a velutinous indument of erect, curly, reddish brown hairs, margins reflexed; stamens c. 1 mm long, connective shield papillate. Monocarps 25–30, blackish green to black in vivo, dark to rusty brown in sicco, ellipsoid, 10–14 by 6–7 mm, densely covered with erect, curly, brown hairs, soon sparsely so, apex apiculate (apiculum <0.3 mm long), wall 0.5–1 mm thick, stipes 20–25 by c. 1 mm. Seed ellipsoid, 11–13 by 5–6 mm, shiny, reddish brown, smooth to pitted, raphe slightly raised. Distribution — French Guiana, Amazonian Brazil (Amapá). Habitat & Ecology — In non-inundated forest. At about sea level. Flowering: February, November; fruiting:August to October. Vernacular names — French Guiana: Bako pao (Saramaccan, Boni name) (Villiers & Feuillet 1790), Pandiecou (Barrier 3865). Note — Guatteria pannosa is quite distinctive by having relatively narrow and coriaceous leaves, pointed flower buds, and a felt-like indument of small, appressed hairs (hence the species name ‘pannosa’) on various parts of the plant. With G. discolor, a species occurring in Amazonian Bolivia, Brazil, Peru and French Guiana, it shares the pointed flower buds, differing by smaller monocarps (10–14 vs 15–30 mm long), longer stipes (20–25 vs 2–10 mm), and an indument of small, appressed instead of erect and curly hairs on the lower side of the lamina. It also shares a number of features with the Panamanian species G. aberrans (Erkens et al. (2006)), differring, however, by much narrower leaves (2.5–5 vs 4–9.5 cm) and longer stipes (20–25 vs 9–14 mm).

Published as part of Maas, P. J. M., Westra, L. Y. T., Guerrero, S. Arias, Lobão, A. Q., Scharf, U., Zamora, N. A. & Erkens, R. H. J., 2015, Confronting a morphological nightmare: revision of the Neotropical genus Guatteria (Annonaceae), pp. 1-219 in Blumea 60 (1) on pages 129-130, DOI: 10.3767/000651915X690341, http://zenodo.org/record/16855128