Guatteria antioquensis Maas & Westra, 2015

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 : 33-35

12. Guatteria antioquensis Maas & Westra , sp. nov. — Fig. 13b , 14 ; Map 5

Guatteria citriodora affinis, sed pedicellis longioribus seminibus foveatis bene differt. — Typus: Cogollo et al. 3796 (holo JAUM 2 sheets; iso COL, MO), Colombia, Antioquia, Mun. San Luis, near Aquitania , 8 km from Hwy. Medellín-Bogotá, 830 m, 25 Nov. 1988 .

Tree 5–23 m tall, c. 6 cm diam (once recorded); young twigs densely covered with erect, brown long-persisting hairs. Leaves: petiole 3–6 mm long, c. 1 mm diam; lamina narrowly ovate to narrowly elliptic, 10–19 by 3–5 cm (leaf index 2.4–3.6), chartaceous, not verruculose, shiny, dark brown to greyish black above, brown below, sparsely covered with erect hairs mainly along primary vein above, soon glabrous, densely covered with erect, brown hairs, hairs simple or in bundles of 2–4, below, base acute to obtuse, basal margins often revo- lute, apex acuminate (acumen 5–10 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 1–2 mm, tertiary veins slightly raised above, reticulate. Flowers in 1– 2-flowered inflorescences, in axils of leaves; pedicels 15–20 mm long, c. 1 mm diam, fruit- ing pedicels 20–35 mm long, 1–2 mm diam, densely covered with erect, brown hairs, articulated at 0.2–0.5 from the base, bracts 5–7, soon falling, not seen; flower buds depressed ovoid; sepals free, broadly ovate-triangular, 3–6 by 3–6 mm, apex and margins often reflexed, outer side densely covered with erect, brown hairs; petals green in vivo, narrowly elliptic to narrowly obovate, 8–20 by 4–9 mm, outer side densely covered with erect to appressed, brown hairs; stamens c. 1.5 mm long, connective shield densely hairy (hairs c. 1 mm long). Monocarps c. 50, green, maturing purple-black to red in vivo, black in sicco, ellipsoid to narrowly ellipsoid, 7–10 by 3–4 mm, rather densely to sparsely covered with erect to appressed, brown hairs, to glabrous, apex apiculate (apiculum c. 1 mm long) to rounded, wall c. 0.1 mm thick, stipes 5–10 by 0.5 mm, rather densely to sparsely covered with erect to appressed, brown hairs to glabrous. Seed ellipsoid, 7–8 by 4 mm, brown, deeply pitted, raphe raised.

Distribution — Colombia (Antioquia).

Habitat & Ecology — In non-inundated forest. At elevations of 790–1550 m. Flowering: November to February; fruiting: February, June, November, December.

Vernacular names — Colombia: Frisolo (Cárdenas L. & Ramírez 2746), Garrapato (Fonnegra et al. 3109), Garrapato lanudo (Giraldo 190).

Map 5 Distribution of Guatteria antioquensis (●), G. araracuarae (£), G. arenicola (■), G. argentea (P), G. atabapensis (u) and G. bernardii (✸).

Other specimens examined. COLOMBIA, Antioquia, Mun.San Luis,margen derecha de la carretera Quebradas-Naranjales y la Cristalina, 420–460 m, Callejas et al. 4151 (HUA); Mun. Amalfí, Veredas Chorritos, La María, Mon- tebello, km 15–35 of the road from Chorritos to Los Monos, SNE of Amalfí, 1180–1550 m, Callejas et al. 9022 (HUA, NY, U); Mun. San Luis, Vereda La Josefina, Quebrada la Mariola, 700–925 m, Cárdenas L. & Ramírez 2746 (JAUM);Mun.San Luis, sector Río Samaná-Río Claro, near Vereda Tulipán, 935 m, Cogollo & Estrada 202 (MO);Mun.San Luis,sector Río Samaná-Río Claro, near Vereda La Josefina, 790 m, Cogollo & Estrada 299 (MO); Mun. San Luis, El Reposo, km 152 of Hwy. Medellin-Bogotá, sector Río Samaná-Río Claro, 790 m, Cogollo & Brand 427 (JAUM, MO); Mun. San Luis, near Aquitania, 8 km from Hwy.Medellín-Bogotá, 830 m, Cogollo et al. 3796 (COL, JAUM, MO); Mun. San Carlos, Vereda Patio Bonito, Alto El Cerrón, linea de transmisión San Carlos-San Marcos (entre las torres 22–23), 1100 m, E. Correa et al. 93 (U); Mun. San Carlos, road of Vereda Miraflores to the Corregimiento Alto de Samaná Norte, 800–900 m, Fonnegra et al. 3109 (HUA,MO,U); Mun. Cáceres,Vereda Madreseca, Reserva Regional Natural Bajo Cauca-Nechí, 830–850 m, Giraldo 190 (JAUM);Mun.San Luis,Vereda La Josefina, Hwy. Medellin-Bogotá, 800 m, Hoyos M. & Hernández 261 (JAUM, MO); Mun. San Rafael, Vereda El Charco, 1010–1200 m, Montes Guarín 200 (COL).

Notes — Guatteria antioquensis , restricted to the Colombian department of Antioquia, is easily recognizable by a combination of its dense and long-persisting indument of erect hairs (hairs simple or in bundles of 2–4) on the lower side of the leaves and a densely hairy connective shield, which is so typical for all species related to G. schomburgkiana . Another peculiarity is the hairy stipes, which in almost all other species in the genus are devoid of any indument.

Guatteria antioquensis looks somewhat like G. citriodora because of its indument, but from that species it clearly differs by much longer pedicels, both flowering and fruiting (15–35 vs 5–17 mm), a much higher number of monocarps (c. 50 vs 2–10), a thinner fruit wall (0.1 vs 0.5 mm thick) and pitted instead of smooth seeds.

Figures

Fig. 13 a. Guatteria amapaensis Maas & Westra. Fruit. – b. Guatteria antioquensis Maas & Westra.Fruit. – c. Guatteria atabapensis Aristeg. ex D.M.Johnson & N.A.Murray. Fruiting branch, detail. – d. Guatteria auyantepuiensis Maas & Westra. Detail of flower. – e, f. Guatteria beckii Maas & Westra. e. Flower; f. fruit. – g. Guatteria beniensis Maas & Westra. Young fruit, also note densely erect hairy juvenile parts in upper left. – h. Guatteria blainii (Griseb.) Urb. Detail of flower (a: Daly et al. 4028, U; b: E. Correa et al. 93, U; c: Wurdack & Adderley 42759, isotype US; d: F. Cardona 2619, holotype US; e, f: Beck & Haase 9895, holotype U; g: Nee 34593, holotype NY; h: Ekman 5920, S).

Fig. 14 Guatteria antioquensis Maas & Westra. Flowering branch (Cogollo & Estrada 202; MO).