Guatteria peruviana R.E.Fr.

122. Guatteria peruviana R.E.Fr. View in CoL — Map 26

Guatteria peruviana R.E.Fr. (1938) 720; Maas & Westra (2011) 139,f. 19, 20. — Type: Killip & Smith 27522 (holo F; iso B, NY, US 2 sheets), Peru, Loreto, Rio Marañon, near mouth of Río Tigre , 115 m, 19 Aug. 1929.

Guatteria macrocarpa R.E.Fr. (1938) 719;(1939) 492,f. 27a,b. — Type: Killip & Smith 28965 (holo F; iso B, NY, US), Peru, Loreto, Santa Rosa , lower Río Huallaga, below Yurimaguas , 135 m, 1–5 Sept. 1929 .

Tree 6–15 m tall, diam not recorded; young twigs densely to rather densely covered with appressed and some erect hairs, soon glabrous. Leaves: petiole 5–10 mm long, 1–3 mm diam; lamina narrowly elliptic, 15–20 by 5–8 cm (leaf index 2.5–3), chartaceous, rather densely verruculose, greenish brown to brown on both sides, glabrous above, rather densely to sparsely covered with appressed hairs below, particularly along primary vein, base acute to obtuse, apex acuminate (acumen 5–20 mm long), primary vein flat to slightly impressed above, secondary veins distinct, 12–17 on either side of primary vein, flat above, smallest distance between loops and margin 1–3 mm, tertiary veins slightly raised above, reticulate. Flowers solitary in axils of leaves; pedicels 7–12 mm long, 1–1.5 mm diam, fruiting pedicels to c. 15 mm long, 2–3 mm diam, densely to sparsely covered with appressed hairs, articulated at 0.2–0.3 from the base, bracts 5–6, soon falling, not seen; flower buds not seen; sepals free, broadly ovate-triangular, 4–5 by 4–5 mm, reflexed, outer side densely covered with appressed hairs; petals pale salmon pink in vivo, narrowly elliptic, 15–20 by 5 – 6 mm, outer side densely covered with appressed hairs; stamens c. 2 mm long, connective shield glabrous. Monocarps c. 25, colour in vivo not recorded, brown in sicco, ellipsoid, 16–24 by 8–10 mm, sparsely covered with appressed hairs, apex apiculate (apiculum c. 0.5 mm long), wall c. 0.5 mm thick, stipes 5–8 by 1–2 mm. Seed ellipsoid, c. 16 by 7 mm, dark brown, rugose, longitudinally and transversely grooved, raphe not distinct from rest of seed.

Distribution — Amazonian Peru (Loreto).

Habitat & Ecology — In non-inundated forest or along river banks.At elevations of 125– 580 m. Flowering:August; fruiting: September.

Vernacular names — Not recorded.

Note — Guatteria peruviana is recognizable by a combination of verruculose leaves and short pedicels and stipes. Moreover, the seeds are quite remarkable by an impressed raphe and the presence of longitudinal and transversal grooves.