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Herbs, erect, creeping or climbing. Leaves opposite, sometimes cordate or hastate at base. Flowers axillary. Bracts 2, large, elliptic or ovate, enveloping the small calyx. Calyx usually of 10-18 linear teeth, rarely a small saucer-shaped body. Stamens 4, didynamous, 2-thecous; anthers opening by longitudinal slits. Retinacula 0. Ovary 2-locular, with 2 ovules in each loculus. Fruit a spherical beaked capsule. Distinguished by the large bracts, the calyx with its numerous lobes, the method of anther dehiscence and the beaked fruit. Derivation of name: Named after Carl Peter Thunberg (1743-1828) Comment: See Pseudocalyx for the differences with that genus. Worldwide: 90 species in the Old World tropics Zambia: 22 taxa. The larvae of the following species of insect eat species of this genus:
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Species | FZ divisions | Provinces | Content |
alata Bojer ex Sims | B,N,W,C,E | Cb,Lp,N,E,C,W | Description, Image |
bianoensis De Wild. & Ledoux | W | Cb | |
ciliata De Wild. | N | N | |
crispa Burkill | N,W,C,E,S | Cb,N,E,C,Lk,S | Description, Image |
cycnium S.Moore | W | Cb | |
gossweileri S.Moore | B,W,C | Nw,Cb,W | |
graminifolia De Wild. | N,W,C,E | Nw,N,Mc,C | |
huillensis S. Moore | W,C,S | Nw,Cb,Lk,S | Description, Image |
kirkiana T. Anderson | N,W,C,E | Cb,N,E,C | |
lancifolia T. Anderson | N,W,C,E,S | Nw,Cb,N,E,C,Lk,S,W | Description, Image |
lathyroides Burkill | N,W,C | Nw,N,Mc | |
oblongifolia Oliv. | N,C,S | Lp,C,S | Description, Image |
petersiana Lindau | N | N | Description, Image |
racemosa Vollesen | N | N | |
reticulata A. Rich. | B | Lk,W | Description, Image |
schimbensis S. Moore | N,C | Mc,C | Description, Image |
serpens Vollesen [NrEnd] | N,W | Nw,N | Description, Image |
sp. A | W | Nw | |
sp. B | W | Nw | |
stellarioides Burkill | N | N | |
subcordatifolia De Wild. | N | N | |
vossiana De Wild. | W,S | Nw,S |
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