De Block, P. (1998) The African species of Ixora (Rubiaceae - Pavetteae) Opera Botanica Belgica 9 National Botanic Garden of Belgium, Meise.
De Block, P. (2020) Rubiaceae Tribu V. Ixorae Flore d'Afrique Centrale Nouvelle Serie Jardin Botanique Meise, Belgique
Fayaz, F. (2011) Encyclopedia of Tropical Plants Firefly Books, New Zealand
Shrubs or small trees, evergreen. Stipules interpetiolar, base broad, usually basally fused into a sheath, apex prolonged or aristate. Leaves opposite, rarely 3-whorled, petiolate or sessile. Inflorescence terminal cymes, dense or spreading corymbose or trichotomous; flowers pedicellate or sessile; bracts and bracteoles present; calyx tube usually ovoid, limb with 4 (or 5) persistent lobes; corolla salveform, glabrous or bearded at throat, apically 4 (or 5) lobed, lobes shorter than corolla tube, spreading or reflexed, contorted in bud. Fruit drupes, globose or slightly compressed, with 2 leathery pyrenes. Seeds same shape as pyrenes, testa membranous. Derivation of name: 530 species in tropical and sub-tropical regions worldwide. Burundi: 1 taxon. |
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| Species | Content | |
| burundiensis Bridson [NrEnd] [VU] | Description |