Annona L.

M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit

Trees, shrubs or subshrubs, with simple or stellate hairs or glabrous

Morphology Reproductive morphology Flowers

Flowers usually bisexual

Morphology Reproductive morphology Flowers Calyx

Sepals valvate, free, shorter than petals

Morphology Reproductive morphology Flowers Corolla

Petals usually 6 in 1–2 whorls, valvate or those of inner whorl imbricate, subequal or outer ones larger

Morphology Reproductive morphology Flowers Androecium Stamens

Stamens numerous

Morphology Reproductive morphology Flowers Gynoecium Carpels

Carpels numerous, ± united, cylindrical, with 1 erect basal ovule; styles clavate; stigmas muricate

Morphology Reproductive morphology Fruits

Fruit syncarpous, fleshy, indehiscent, ovoid-globose or cylindrical.

Distribution

Genus of over 160 species mostly in tropical America, a few in tropical Africa (none native in Somalia)

Note

Apart from the two species included, A. cherimola Mill. (“Cherimoya”) with leaves velvety beneath, and A. reticulata L. (“Bullock's Heart”) with reticulate, ± smooth fruits, may also well be cultivated in Somalia, but no records are available.

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

Morphology General Habit

Trees, shrubs or shrublets, not climbing, glabrous or with simple or stellate hairs.

Morphology General Buds

Buds globose to conic or triquetrous.

Morphology Reproductive morphology Flowers

Flowers usually bisexual, solitary or in few-flowered cymes or fascicles, terminal or extra-axillary or sometimes on the old wood, pedicellate.

Morphology Reproductive morphology Inflorescences Bracteoles

Bracteoles 0–2, persistent.

Morphology Reproductive morphology Flowers Calyx

Sepals 3, valvate, much shorter than the petals, free.

Morphology Reproductive morphology Flowers Corolla

Petals 6, free or connate at the base, in two equal or ± unequal whorls, or the inner whorl sometimes absent, both valvate or the inner whorl imbricate, thick, coriaceous, connivent or suberect, concave at the base or throughout.

Morphology Reproductive morphology Flowers Androecium Stamens

Stamens ?, linear or linear-clavate, with thecae extrorse and often unequal at the base, and connective-prolongation obliquely capitate or apiculate, sometimes ± papillose; filaments short.

Morphology Reproductive morphology Flowers Gynoecium Carpels

Carpels numerous, free at first or united from the beginning, ± cylindric, with a single basal ovule; style clavate; stigma muricate.

Morphology Reproductive morphology Fruits

Fruit a fleshy syncarp, ovoid-globose to cylindric, many-seeded.

Morphology Reproductive morphology Seeds

Seeds irregularly arranged in the syncarp; aril carunculoid.