Cartrema Raf.

Type species: Olea americana L. = Osmanthus americanus (L.) Benth. & Hook. f. ex A. Gray

Synonyms: Amarolea, Osmanthus sect. Leiolea

Distribution: North America (USA and Mexico)

Number of species: 2

Description (from Nesom 2012): Shrubs, (1–)2–3(–4) m, occasionally characterized as a "small tree." Stems: usually 2 or more from the base, sometimes branching near the ground, rarely with a single axis; bark gray-brown to light gray or silvery, smooth, becoming finely scaly. Leaves persistent, elliptic to ellipticoblanceolate or oblanceolate, 5.5–12 cm x 20–40(–50) mm, base cuneate to attenuate, margins entire, revolute, apex acute to short-acuminate or obtuse, glabrous on both surfaces; petioles 3–10 mm. Inflorescences axillary, 12–20-flowered. Pedicels 0–1 mm. Flowers unisexual or rarely bisexual; corolla white to yellow, tube 2–3 mm, lobes 1.5–2.5 mm, ca. equal tube length, plane to loosely involute. Drupes dark bluish purple to nearly black, subglobose to broadly ellipsoid or ellipsoidobovate, 18–25 mm at maturity (dried).

Species list

Accepted:
• Cartrema americana (L.) Nesom
• Cartrema floridana (Chapman) Nesom
  Synonyms:
• Cartrema marginata (Hemsley) J. I. de Juana is a synonym of Chengiodendron marginatum (Champ. ex Benth.) C. B. Shang, X. R. Wang, Yi F. Duan & Yong F. Li
• Cartrema matsumurana (Hayata) J. I. de Juana is a synonym of Chengiodendron matusumuranum (Hayata) C. B. Shang, X. R. Wang, Yi F. Duan & Yong F. Li
• Cartrema minor (P. S. Green) J. I. de Juana is a synonym of Chengiodendron minor (P. S. Green) C. B. Shang, X. R. Wang, Yi F. Duan & Yong F. Li
  Should most likely also be synonyms:
• (Cartrema scortechinii (King & Gamble) J. I. de Juana, should most likely be tranferred to Chengiodendron)
• (Cartrema sumatrana (P. S. Green) J. I. de Juana, should most likely be tranferred to Chengiodendron)

Images

• Cartrema americana
• Cartrema floridana

References

• Guo, Shi-Quan & Xiong, Min & Ji, Chun-Feng & Zhang, Zhi-Rong & Li, De-Zhu & Zhang, Zhi-Yong 2011. Molecular phylogenetic reconstruction of Osmanthus Lour. (Oleaceae) and related genera based on three chloroplast intergenic spacers. Plant Syst. Evol. 294: 57-64.
• de Juana, J. I. 2015. Cambios nomenclaturales en la sección Leiolea (Spach) P. S. Green, del género Osmanthus Lour. (Oleaceae). Bouteloua 22: 28-39.
• de Juana, J. I. 2018. El género Cartrema Raf. (Oleaceae) en España. Bouteloua 27: 65-70.
• Li Y-F, Zhang M, Wang X-R, Sylvester SP, Xiang Q-B, Li X, Li M, Zhu H, Zhang C, Chen L, Yi XG, Mao L-F, Duan Y-F. 2020. Revisiting the phylogeny and taxonomy of Osmanthus (Oleaceae) including description of the new genus Chengiodendron. Phytotaxa 436: 283­292.
• Nesom, G. 2012. Synopsis of American Cartrema (Oleaceae). Phytoneuron 2012-96: 1-11.

Maintained by Eva Wallander | Last updated: 2022-01-07