1. Family: Annonaceae Juss.
    1. Genus: Annona L.
      1. Annona stenophylla Engl. & Diels

        This species is accepted, and its native range is W. Tanzania to Zambia.

    [FTEA]

    Annonaceae, B. Verdcourt. Flora of Tropical East Africa. 1971

    Habit
    Subshrub or shrub 0.3–1 m. tall, mostly rhizomatous; stems mostly annual, simple or branched, densely ferruginous hairy when young, later often glabrous.
    Leaves
    Leaf-blades narrowly oblong-elliptic, oblanceolate, ovate or obovate, 1.5–18(–24) cm. long, 0.5–6(–12.5) cm. wide, rounded, acute, acuminate or even slightly emarginate at the apex, cuneate or rounded at the base, not coriaceous, glabrous or sparsely pubescent above, glaucous and mostly densely pubescent beneath; petioles channelled, 0.2–2 cm. long.
    Flowers
    Flowers solitary or rarely paired, extra-axillary; pedicels 0.8–2.5 cm. long, tomentose or pubescent; bracteoles small, oblong-ovate.
    Calyx
    Sepals ovate, triangular, 3–4 mm. long and wide, tomentose outside, glabrous inside.
    Corolla
    Petals green outside, yellow inside, fleshy or woody; outer broadly ovate, 0.8–1.2(–1.5) cm. long and wide, obtuse, concave, shortly densely adpressed pubescent outside; inner linear-oblong or narrowly oblong-elliptic, 10 mm. long, 1.5–2 mm. wide, glabrous.
    Stamens
    Stamens linear or clavate, 1.5–2 mm. long, the connective-prolongations obliquely capitate, finely papillate.
    Carpels
    Carpels cylindric, 1–1.5 mm. long, glabrescent; stigmas subclavate.
    Fruits
    Fruiting pedicels (1–) 1.5–4 cm. long, pubescent; fruit yellowish-brown, ovoid or globose, 1.7–3 cm. in diameter, reticulate, glabrescent.
    Seeds
    Seeds chestnut, ovoid to cylindrical, longitudinally flattened, 7–9 mm. long, 3–4 mm. wide; aril fibrillated.
    [FZ]

    Annonaceae, N. K. B. Robson. Flora Zambesiaca 1:1. 1960

    Habit
    Shrub or rhizomatous shrublet, up to 1 m. high, with stems simple or ± branched, usually annual.
    Branches
    Branches cylindric or with opposite pairs of raised lines decurrent from the leaf-bases, red, fawn-tomentose at first, eventually glabrous or persistently tomentose.
    Leaves
    Leaves petiolate; lamina 4–18 (24) x 1–6 (12.6) cm., narrowly oblong or oblanceolate to ovate or obovate, rounded or slightly emarginate to acute or apiculate at the apex, narrowly cuneate to rounded at the base, membranous, bright or bluish-green and glabrous or sparsely pubescent above, usually paler or glaucous and ± densely tomentose (more rarely glabrous) below, with green to orange or reddish-purple nerves and densely reticulate venation usually ± prominent above as well as below; petiole 2–10 mm. long, densely tomentose to glabrous.
    Flowers
    Flowers solitary or rarely paired, extra-axillary, spreading or usually ± deflexed; pedicel 10–25 mm. long, pubescent or tomentose; bracteoles 0–1, oblong-ovate.
    Calyx
    Sepals as in A. senegalensis.
    Corolla
    Petals cream-yellow to buff or brownish inside, otherwise as in A. senegalensis.
    Stamens
    Stamens linear to clavate, c. 1.5–2 mm. long, otherwise as in A. senegalensis; filament cuneate or oblong-orbicular.
    Carpels
    Carpels as in A. senegalensis.
    Fruits
    Fruit on a pedicel (10) 15–40 mm. long, spreading or deflexed; syncarp 1.7–2.7 x 1.7–2.7, ovoid or globose, obtusely squamose, glabrescent, orange or yellow.
    Seeds
    Seeds numerous, 7–9 mm. long, cylindric or flattened-ovoid, orange-brown; aril pectinate.

    Distribution

    Native to:

    Tanzania, Zambia

    Annona stenophylla Engl. & Diels appears in other Kew resources:

    First published in H.G.A.Engler, Monogr. Afrik. Pflanzen-Fam. 6: 78 (1901)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.
    • Verdcourt, B. (1971). Flora of Tropical East Africa, Annonaceae: 1-131.
    • Exell, A.W. & Wild, H. (eds.) (1960). Flora Zambesiaca 1(1): 1-336. Royal Botanic Gardens, Kew.

    Literature

    Flora of Tropical East Africa
    • Paiva in Mem. Soc. Brot. 19: 110 (1966).
    • Robson in Flora Zambesiaca 1: 142(1960).
    • Robson in Bol. Soc. Brot., sér. 2, 32: 158 (1958)
    • Robyns & Ghesq. in Bulletin de la Société Royale de Botanique de Belgique 67: 46, fig. 8 & t. 4 (1934).
    • Engl. & Diels in Monographieen Afrikanischer Pflanzen-Familien und Gattungen 6: 78 (1901).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0