Duguetia moricandiana Mart.

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 moricandiana Mart.

Type

Type: Brazil. Bahia, without locality, anno 1834 (fl, yfr), Blanchet 1678 (holotype, G, 2 sheets; isotypes, BM, F)

Description

Species Description - Tree or shrub, 1.5-5 m tall. Young twigs and petioles totally covered with stellate scales 0.1-0.3 mm in diam. Petioles 2-6 mm long, 1.5-2.5 mm in diam. Lamina elliptic to oblong-elliptic, 5-10(-12.5) cm long, 2.5- 6(-7) cm wide, leaf index 1.5-2(-2.2), coriaceous, green to brown above, brownish green below, glabrous above, densely covered with stellate scales 0.1-0.3 mm in diam. below when very young, soon becoming sparsely hairy, base obtuse to rounded, apex obtuse to rounded, often apiculate (apicule 1-3 mm long), primary vein impressed to flat above, secondary veins curved, (5-)7-10(-12) on either side of primary vein, distinctly raised above, angles with primary vein 5075°, loop-forming at acute to right angles, loops distinct, smallest distance between loops and margin 4-8 mm, tertiary veins raised on both sides. Inflorescences among leaves, leaf-opposed or rarely terminal, 1-2-flowered, to about 15 flowers in succession. Indument: pedicels and outer side of bracts, sepals, and petals totally to rather densely covered with stellate scales 0.1-0.5 mm in diam., inner side of sepals and petals totally covered with stellate hairs 0.1-0.5 mm in diam., inner base of petals glabrous. Peduncle 0-2 mm long. Sympodial rachis to 10 mm long. Pedicels 8-10 mm long, 1-1.5 mm in diam., fruiting pedicels 11-18 mm long, 2-3.5 mm in diam. Upper bract at 1/3 to 1/2 of base of pedicel, very broadly ovate, 1-2 mm long. Flower buds broadly ovoid, apiculate (apicule 2 mm long). Flowers greenish white to yellow in vivo, inner base of petals red. Sepals connate for 25-35%, broadly triangular-ovate, 9-12 mm long, 5-9 mm wide, acute to acuminate (acumen 1.5-2.5 mm long). Petals subequal, elliptic (to obovate), 7-15 mm long, 5-10 mm wide, acute, inner base of inner petals callose, strongly grooved. Stamens 1.1-1.3 mm long, red, apex of connective shallowly pyramidal, 0.2-0.4 x 0.4-0.6 mm, glabrous. Carpels (as counted in flower) 40-80, 1.5-2.2 mm long, ovary and stigma sparsely to rather densely covered with stellate hairs. Fruit color in vivo unknown, globose, 3.5-4 cm in diam., basal collar absent, fertile carpels ca. 60, broadly obtrulloid, 14-16 mm long, 7-10 mm in diam., free, areoles shallowly pyramidal, 4-6 mm high, obtuse, apiculate (apicule curved, sharp-pointed, 1-4 mm long), distinctly 4-6-ribbed, densely covered with a velutinous, dark brownish indument of stellate hairs 0.1-0.2 mm in diam. Seeds obovoid (to broadly obo-void), 10-13 mm long, 7-9 mm in diam., obtuse, dark brown, slightly shiny.

Discussion

Duguetia moricandiana is a species occurring in the dunes and restingas of Eastern Brazil. He & Maas (1993) considered it closely related to D. furfuracea. It can be distinguished from the latter, however, by a fruit with free carpels and a brownish velutinous indument, and by comparatively broader leaves with a much less dense indument. UPGMA analysis places it in a more or less isolated position together with D. dicholepidota (Fig. 37, below 5th cluster).

Distribution

Known from the Brazilian states of Bahia and Sergipe. In restinga and dune vegetation; on white sand. At sea level. Flowering and fruiting all year round.

Brazil South America| Bahia Brazil South America| Sergipe Brazil South America|