Bryophyllum calycinum, or Kalanchoe pinnata, illustration from 'Flore des jardiniers, amateurs et manufacturiers: D'apr?s les dessins de Bessa. Extraits de l'Herbier de l'amateur.', pub. 1836 (hand coloured engraving). Bryophyllums are a section of the genus Kalanchoe, a taxon of around 130 species of succulents native to warm and tropical climates, with bell, urn or tubular flowers.