Duguetia bahiensis Maas

Authority

Maas, Paulus J. M., et al. 2003. (Annonaceae). Fl. Neotrop. Monogr. 88: 1-274 pp. (Published by NYBG Press)

Family

Annonaceae

Scientific Name

Duguetia bahiensis Maas

Type

Type: Brazil. Bahia: near Ilheus ( crescit in silvis primaevis prope S. Georgium Insulanorum ), Dec 1818 (fl, fr), Martius 709 (lectotype, BR, designated by Maas (1993); isolectotypes, BM, BR, G, GH, K, L, LE, M, MO, NY, OXF, P, S, WU).

Synonyms

Duguetia bracteosa Mart., Uvaria sessilis Vell., Aberemoa bracteosa (Mart.) R.E.Fr.

Description

Species Description - Tree, 4-10(-20) m tall, to 12 cm in diam. Young twigs and petioles totally covered with stellate scales 0.2-0.5 mm in diam. Petioles 5-10 mm long, 1.5-4 mm in diam. Lamina narrowly oblong-elliptic, 15-35 cm long, 5-11 cm wide, leaf index 2.8-3.7, chartaceous to subcoriaceous, green to greyish brown, slightly shiny above, pale brown below, glabrous above, sparsely covered with pale brownish yellow, stellate scales 0.1-0.5 mm in diam. below, base acute to obtuse, apex acuminate (acumen 1-10 mm long) to acute, primary vein impressed above, secondary veins curved, 12-18 on either side of primary vein, raised above, angles with primary vein 75-80°, loop-forming at obtuse angles, loops distinct, smallest distance between loops and margin 2-5 mm, tertiary veins raised on both sides. Inflorescences among leaves, leaf-opposed (or supra-axillary, or rarely sub-axillary), sometimes terminal on a shorter or longer axillary shoot (or rarely plant cauliflorous), a single rhipidium, or becoming (much) ramified in cauliflorous plants. Rhipidia 1-3-flowered, to 15 flowers in succession, or numerous flowers in cauliflory. Indument: peduncles, pedicels, and outer side of bracts and sepals totally covered with stellate scales 0.1-0.6 mm in diam., inner side of sepals and both sides of petals densely to totally covered with stellate hairs 0.1-0.5 mm in diam. Peduncle 2-13 mm long. Sympodial rachis to 20 mm long, or more (> 40 mm) in cauliflory. Pedicels 5-10 mm long, 1-3 mm in diam., distinctly grooved. Bracts generally distinctly foliaceous. Upper bract at 1/3 to 3/4 of the base of pedicel, ovate-deltate, 5-35 mm long, amplexicaul. Flower buds ovoid, 3-ridged by recurved edges of the sepals. Flowers cream to yellow in vivo, inner base of inner petals red. Sepals connate for 10-15%, broadly ovate-deltate, 11-21 mm long, 10-18 mm wide, acute to shortly acuminate. Petals subequal, narrowly oblong-elliptic, 10-30 mm long, 5-15 mm wide, acute to obtuse, inner base of inner petals callose, distinctly grooved. Stamens 1.2-2 mm long, cream or red, apex of connective deltoid, 0.5 x 0.7-0.8 mm, densely covered with simple hairs. Carpels 3-4 mm long, ovary densely covered with simple hairs, stigma sparsely so to glabrous. Fruit green to greyish green in vivo, globose, 2.5-3.5 cm in diam., basal collar absent, fertile carpels 25-45, obtrulloid, 13-16 mm long, 5-12 mm in diam., fused for up to 15%, areoles pyramidal to broadly obovoid, 4-7 mm high, obtuse, apiculate (apicule 1-2 mm long), 6-7-ribbed, coarsely verrucose, totally covered with a velutinous, brown indument of stellate hairs to 0.1 mm in diam. Seeds obovoid, 8-12 mm long,

Discussion

Duguetia bahiensis can be recognized by its large, amplexicaul bracts (prompting Fries, 1934, to place it in a monotypic Sect. Megaerisma), the often manifestly-pedunculate inflorescences, and the brownish-velutinous indument of the fruit. UPGMA analysis placed it in the cluster around D. calycina (Fig. 37, 5th cluster).

Common Names

Pindaiba

Distribution

Endemic to the Brazilian state of Bahia. In coastal rain forest (“mata higrófila Sul Baiana”). At low elevation up to 50 m. Flowering and fruiting from August to April. Flowers fragrant.

Brazil South America| Bahia Brazil South America|