Guatteria hispida (R.E.Fr.) Erkens & Maas

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), Blumea 60 (1), pp. 1-219 : 97

81. Guatteria hispida (R.E.Fr.) Erkens & Maas — Map 18

Guatteria hispida (R.E.Fr.) Erkens & Maas (2008) 404;Maas & Westra (2011) 129, f. 13. — Guatteriopsis hispida R.E.Fr. (1934) 111, t. 7, 8; Maas et al. (2007) 645. — Type: Ducke 14 = RB 23903 (holo S; iso K, RB, US), Brazil, Amazonas, Manaus, Estrada do Aleixo, km 12, 9 Dec. 1932.

Tree or shrub 2–6 m tall, c. 5 cm diam; young twigs densely covered with brown, rough, erect, long-persistent hairs (‘hir- sute’) to c. 3 mm long. Leaves: petiole 3–5 mm long, 1–1.5 mm diam; lamina narrowly oblong-elliptic, 10–27 by 3–6 cm (leaf index 3.2–4.5), chartaceous, densely verruculose, dull, greyish green to brownish green above, brown below, glabrous above, rather densely to sparsely covered with brown, rough, erect hairs (‘hirsute’) below, base acute to obtuse, apex abruptly and long-acuminate (acumen 10–25 mm long), primary vein impressed above, secondary veins distinct, 10 –15 on either side of primary vein, slightly raised above, smallest distance between loops and margin 3–7 mm, tertiary veins slightly raised above, reticulate. Flowers solitary in axils of leaves; flowering and fruiting pedi- cels 5–8 mm long, 3–5 mm diam, densely to finally sparsely covered with erect, brown hairs, articulated at c. 0.7 from the base, bracts 5–6, soon falling, the uppermost bract to c. 7 mm long; flower buds subglobose; sepals free, broadly ovate-triangular, 8–10 by 8–10 mm, appressed, outer side densely covered with appressed, brown, long hairs; petals yellow in vivo, ovate-triangular, 15–20 by 8–14 mm, outer side densely covered with appressed, brown, hairs to c. 3 mm long; stamens c. 2 mm long, connective shield hairy. Monocarps 10 – 50, greenish red to wine-red in vivo, brown in sicco, narrowly ellipsoid and fusiform, 20–35 by 7–8 mm, densely covered with erect, rough, brown hairs (‘hirsute’), apex distinctly and bluntly apiculate (apiculum <2 mm long), wall 0.5–0.7 mm thick, stipes 5–10 by 1–1.5 mm. Seed narrowly ellipsoid, 17–20 by 6–7 mm, apex pointed, brown, longitudinally and transversely grooved to rugulose, raphe not distinct from rest of seed.

Distribution — Amazonian Brazil (Amazonas).

Habitat & Ecology — Mostly in campinarana forest, on sandy soil.At elevations below 200 m. Flowering: February, December; fruiting: May to July.

Vernacular name — Brazil: Envireira.

Note — Guatteria hispida is one of the very few species in the genus with a long-persistent indument of erect, rough, brown hairs (‘hirsute’) on the leafy twigs, leaves and also on the monocarps.