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Conservatoire et Jardin botaniques de la Ville de Genève

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Monographia Aquifoliacearum - Loizeau Pierre-André & Gabrielle Barriera


Aquifoliaceae of Neotropics

Loizeau P.-A. & G. Barriera

Ilex altiplana Steyerm.

Habit, vegetative morphology.— Tree or shrub, evergreen, 3–20 m tall. Current year's branchlets glabrous or pubescent (finement). Branchlets older than one year smooth or furrowed, reddish, glabrous. Lenticels on current year's branchlets present. Internodes 0.4–1 cm. Stipules caducous, linear-triangular, 0.2–0.5 mm. Petiole glabrous, rough or grooved surface, 3–7 mm. Lamina elliptic, oblong (1:2), 4–6 X, 1.5–2.5 cm, papyraceous, glabrous abaxially. Base acute. Apex obtuse to acute, not mucronate. Apex acuminate. Acumen 0.3–0.5 cm. Margin revolute, entire. Midbrid adaxially impressed, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 6–7 pairs. Tertiary veins abaxially evident. Ponctuation abaxiallly absent.

Inflorescences.— Thyrse, proliferating.

Female flowers.— Thyrses axes solitary and axillary. Thyrses axes 2–9 cm. Cymes of order 1. Peduncles glabrous (avec quelques rares poils). Peduncles of order 1 6–8 mm. Pherophylls of order 1 at 2–3 tenth of the base. Bracts linear-triangulate, glabrous, 0.5–1 mm, margin entire. Pherophylls of order 1 opposite, deltoids, glabrous, 0.1 mm, margin entire. Female flowers 4 -merous. Calyx glabrous, margin entire, 2–2.5 mm in diam. Ovary ovoid, glabrous, stigma columnar, stigma glabrous.

Fruits.— Fruit green (immature), spherical, 4–5 mm in diam., 4–5 mm.

Distribution, ecology.— South America, Venezuela, 1000–1200 m, bosque alto húmedo, along small streams.

Illustrations.— • Planche Steyermark 93037 NY.

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