Guatteria latifolia (Mart.) R.E.Fr.

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 : 101-102

87. Guatteria latifolia (Mart.) R.E.Fr. — Fig. 44 ; Plate 5c ; Map 19

Guatteria latifolia (Mart.) R.E.Fr. (1939) 326, f. 4a. — Guatteria nigrescens Mart. var. latifolia Mart. (1841) 31. — T ype: Schott s.n. (holo BR), Brazil, Rio de Janeiro, Serra do Tinguá.

Tree or shrub 4–10 m tall, 6–20 cm diam; young twigs glabrous. Leaves: petiole 5–8 mm long, c. 2 mm diam; lamina narrowly elliptic to elliptic, 10–20 by 3–7 cm (leaf index 2–4), charta- ceous, not verruculose, shiny, blackish green to brown above, pale brown below, glabrous above, sparsely covered with appressed, brown hairs to glabrous below, base acute, apex acute to acuminate (acumen c. 10 mm long), primary vein impressed above, secondary veins distinct, 10–12 on either side of primary vein, raised to impressed above, smallest distance between loops and margin c. 1 mm, tertiary veins raised above, reticu- late. Flowers solitary in axils of leaves; pedicels 25–45(–60) mm long, 1–3 mm diam, fruiting pedicels to c. 70 mm long, sparsely covered with appressed, brown hairs to glabrous, articulated at <0.1 from the base, bracts 2, soon falling, c. 10 by 2 mm; flower buds broadly ovoid; sepals connate, broadly ovate-triangular to ovate-triangular, 10– 20 by 10 mm, reflexed, outer side sparsely covered with erect, curly, brown hairs; pet- als cream or yellow in vivo, narrowly elliptic to elliptic, 15–35 by 6 – 20 mm, outer side sparsely covered with erect, curly, brown hairs; stamens c. 2 mm long, connective shield papillate. Monocarps 15–45, purple in vivo, black in sicco, ellipsoid, 6–15 by 5–7 mm, glabrous, apex apiculate (apiculum c. 1 mm long), wall 0.2–0.5 mm thick, stipes 20–30 by 1 mm. Seed ellipsoid to subglobose, 6–15 by 5–7 mm, brown to dark brown, pitted, raphe not distinct from rest of seed.

Distribution — Brazil (Minas Gerais, Rio de Janeiro).

Habitat & Ecology — In non-inundated, Atlantic rain forest, on clayey soil. At elevations of 150–1250 m. Flowering: August to March; fruiting: January to March, June, September, Novem- ber.

Vernacular name — Brazil: Canguantã (M.R. Barbosa 261, Fernandes 399).

Note — Large flower buds and connate sepals are striking aspects of G. latifolia .

Figures

Plate 5 a, b. Guatteria jefensis Barringer. a. Flowering branch of dwarf tree; b. ripe flower (top), fruit (bottom). – c. Guatteria latifolia (Mart.) R.E.Fr. Flower bud. – d–f. Guatteria lucens Standl. d. Flowers; e. leaves; f. fruit. – g, h. Guatteria megalophylla Diels. – g. Flower; h. fruit. – i. Guatteria oblongifolia Rusby. Flowering branch (a: Maas et al. 9553; b: Cerro Jefe, Panama; c: Maas & Martinelli 3222; d; Maas et al. 9491; e: Maas et al. 9519; f: Chatrou et al. 705; g, h: Chatrou et al. 387; i: Homeier 4504). — Photos: a, c–e: P.J.M. Maas; b: J. Harrison; f–h: L.W. Chatrou; i: J. Homeier.

Fig. 44 Guatteria latifolia (Mart.) R.E.Fr. a. Fruiting branch; b. flower buds; c, d. flowers (a, b: Maas & Martinelli 3222; c, d: Marquete 3416; from Lobão (2009) f. 7A–D).