Psidia penninervia (Baume de l'Ile Plate Marron).

  This endemic plant is either a small tree or a bush, with a smooth bark that reaches 5 m in height. The stem can be approximately 10 cm in diameter at the base. Both young leaves and stalks are aromatic and somewhat sticky.

 Leaf shape ranges from elliptical to obovoid. The leaves measure 6.5 to 11 cm in length by 2.2 to 4.2 cm in width. They are rather pointed at the tip and cuneiform at the base, with an entire leaf margin. Venation pattern is brochiodromous with 2 to 3 pairs of secondary veins being joined to well-developed tertiary veins. However, only the midvein and secondary veins are visible on the upper leaf surface.

 The petiole is 2 to 3 cm long. Inflorescence is terminal or corymbform, some 8 cm in length with linear or square-shaped bracts. Campanulate capitula of about 3 mm in diameter are also found. The white fragrant flowers can be either sessile or can have very short peduncles. The involucre bracts are not very numerous and occur in series of 3. External ones are about 1 mm long, oval and brown in colour. The middle ones are 3 to 3.5 mm long, membranous and pale brown with a dark midvein and scarious margin. Internal bracts are 2.5 to 3 mm long and lanceolate.

 The receptacle is flat and approximately 0.5 mm in diameter. The externally found flowers occur in groups of 6 to 8. The corolla occurs as a filiform tube, which is 3.5 mm long and some 3 mm in diameter. Internally found male flowers occur between 2 and 4. The corolla is tubular, 4 mm long with the lobe measuring approximately 1 mm in length.

 The ovary is usually reduced to a nipple-like structure. The achenes are generally cylindrical or obconic, 1.5 mm in length and brown in colour. A white pappus of 2.5 to 3 mm in length is also present.