Guatteria intermedia Scharf

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 : 98

83. Guatteria intermedia Scharf — Map 18

Guatteria intermedia Scharf in Scharf et al. (2006b) 545, f. 2. — Type: Oldeman B.4125 (holo CAY; iso NY), French Guiana, Saül, Crique Cochon, 21 Oct. 1971.

Tree 2–10 m tall, 5–15 cm diam; young twigs densely covered with semi-erect, brown, long-persisting hairs. Leaves: petiole 3–10 mm long, 1–2 mm diam; lamina narrowly elliptic to narrowly obovate, 10–23 by 4–7.5 cm (leaf index 2.6–3.4), chartaceous, not verruculose, dull greyish above, greyish brown to reddish brown below, sparsely covered with appressed, long hairs above, soon glabrous, primary vein with a row of semi-erect hairs, densely covered with appressed, pale brown hairs below, base acute, apex acuminate (acumen 10–20 mm long), primary vein impressed above, secondary veins distinct, 10–12 on either side of primary vein, flat to slightly raised above, smallest distance between loops and margin 1.5–3 mm, tertiary veins slightly raised above, percurrent to reticulate. Flowers in 1(–2)-flowered inflorescences in axils of leaves; flowering and fruiting pedicels 5– 20 mm long, 1–2 mm diam, densely covered with semi-erect, brown hairs, articulated at 0.3–0.4 from the base, bracts 5–6, soon falling, not seen; flower buds depressed ovoid; sepals free or slightly connate at the base, broadly to shallowly ovate-triangular, 4–5 by 5–7 mm, apex reflexed, outer side densely covered with appressed hairs (apex glabrous); petals greenish yellow or yellow in vivo, narrowly oblong-elliptic to oblong-elliptic,10– 20 by 5 –10 mm, outer side densely covered with appressed to erect, rusty brown, curly hairs; stamens 1.5–2 mm long, connective shield papillate, rarely hairy, mostly umbonate. Monocarps 20– 50, green, maturing black in vivo, shiny black or blackish brown in sicco, ellipsoid, 5–9 by 3–5 mm, sparsely covered with appressed hairs, soon glabrous, apex apiculate (apiculum <1 mm long), wall 0.1–0.2 mm thick, stipes 10–25 by 0.5–1 mm. Seed ellipsoid, 6–8 by 4–5 mm, shiny, dark brown, pitted, raphe not distinct from rest of seed.

Distribution — NW Suriname, French Guiana, Brazil (Amapá).

Habitat & Ecology — In non-inundated forest, on lateritic or sometimes on granitic soil. At elevations of 0– 400 m. Flower- ing: June to March; fruiting: February, October to December.

Vernacular names — French Guiana:Iwi, I-wi (Wayãpi name) (de Granville T.1151, Grenand 632, Prévost & Grenand 967, Prévost & Sabatier 2781), Mamayavé (Creole name) (de Granville B.4561).

Notes — The recently described G. intermedia differs from G. ouregou and G. richardii , by having semi-erect to appressed instead of erect hairs on young twigs and pedicels.

Except for the indument, G. intermedia shares many features with G. punctata . To complicate matters, though, there are some specimens cited by Scharf ( Scharf et al. 2006b) under G. intermedia which lack the indument of semi-erect hairs, having an indument of appressed hairs instead. This involves Mori et al. 25705 from French Guiana, and Van Andel et al. 4657 from Suriname. In almost all material of G. punctata studied by us we observed a very distinct indument of appressed hairs on most of the parts. In the Brazilian state of Mato Grosso, how- ever, we came across some material with erect or almost erect hairs. These specimens had been identified as G. sylvicola . In that case, too, we found various specimens with an indument intermediate between that of G. sylvicola and that of ‘typical’ G. punctata making us conclude that all material should be referred to G. punctata . Possibly G. intermedia represents a similar case of a slightly deviating population within G. punctata in the wide sense.