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Conservatoire et Jardin botaniques de la Ville de Genève

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Monographia Aquifoliacearum - Loizeau Pierre-André & Gabrielle Barriera


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Aquifoliaceae of Neotropics

Loizeau P.-A. & G. Barriera


Ilex jamaicana Proctor

Habit, vegetative morphology.— Shrub. Current year's branchlets glabrous. Branchlets older than one year smooth or furrowed, reddish, glabrous. Lenticels on current year's branchlets absent or hardly visible. Internodes 0.1–2.7 cm. Stipules caducous, linear-triangular, 0.5 mm. Petiole glabrous, rough or grooved surface, 7–9 mm. Lamina elliptic or obovate, oblong (1:2), 4–6 X, 2–3 cm, coriaceous, bullate adaxially (légèrement). Base acute. Apex rounded, not mucronate. Apex acuminate. Acumen 0.15–0.2 cm. Margin revolute or rolled up (artefact du séchage?), entire. Midbrid adaxially impressed, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 6–8 pairs. Tertiary veins abaxially obscure. Ponctuation abaxiallly present (difficile à voir).

Inflorescences.— Thyrse, proliferating.

Female flowers.— Thyrses axes solitary and axillary. Thyrses axes 0.4–2.3 cm. Cymes of order 1. Peduncles glabrous. Peduncles of order 1 7–9 mm. Pherophylls of order 1 at 2–5 tenth of the base. Bracts linear-triangulate, glabrous, 1.2 mm, margin entire. Pherophylls of order 1 opposite, linear-triangulate, glabrous, 0.4–0.6 mm, margin entire. Female flowers 4 -merous. Calyx glabrous, margin entire, 2 mm in diam. Ovary ovoid, glabrous, stigma mamillate, stigma glabrous.

Fruits.— Fruit ovoid.

Distribution, ecology.— The Antilles, Jamaica, 500–800 m, Mossy elfin woodland over limestone.

Flowering.— June (fruit).

Illustrations.— • Planche Proctor 19738 Uat f (IT). • Rameau Proctor 19738 Uat f (IT). • Rameau, feuilles Proctor 19738 Uat f (IT). • Planche Proctor 19738 NYat f (IT).


Cite this publication as: ‘Loizeau, P.-A. & G. Barriera (2007). Aquifoliaceae néotropicales: Descriptions, Illustrations, Identification, et Recherche d'Information. Version: 1st march 2007. http://www.ville-ge.ch/cjb/.
Loizeau (1994) et Loizeau & Spichiger (1992) should also be cited (see Bibliography).