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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 tateana Steyerm.

Habit, vegetative morphology.— Tree or shrub, evergreen, 2.8–8 m tall. 10 cm dbh. Current year's branchlets glabrous. Branchlets older than one year smooth or furrowed, brownish, glabrous. Lenticels on current year's branchlets present. Internodes 0–3 cm. Stipules persistent, linear-triangular, 1–2 mm. Petiole glabrous, rough or grooved surface, 6–9 mm. Lamina elliptic to obovate, oblong (1:2) or lanceolate (1:3), 13–25 X, 4.5–9 cm, coriaceous, glabrous abaxially. Base acute to obtuse. Apex obtuse to acute, not mucronate. Apex acuminate. Acumen 1–2 cm. Margin revolute (finement), crenate to dentate, teeth conspicuous. Teeth 14–20 ca., over the entire length of the margin. Midbrid adaxially raised, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 10–13 pairs. Tertiary veins abaxially evident. Ponctuation abaxiallly present.

Inflorescences.— Thyrse, non proliferating.

Male flowers.— Thyrses axes solitary and axillary. Cymes of order 1–2. Peduncles glabrous. Peduncles of order 1 5.5–10 mm. Pherophylls of order 1 at 5–6 tenth from the base. Peduncles of order 2 1.5–5 mm. Male flowers 4 -merous, green (verdâtres). Calyx glabrous, 1.5 mm in diam. Corolla 3 mm.

Female flowers.— Thyrses axes 0.2–0.4 cm. Cymes of order 1. Peduncles glabrous. Peduncles of order 1 7–8 mm. Pherophylls of order 1 at 3–7 tenth of the base. Bracts deltoids, glabrous, 1–1.5 mm, margin entire. Pherophylls of order 1 opposite, deltoids, glabrous, 0.2–0.3 mm, margin entire. Female flowers 4 -merous. Calyx glabrous, margin entire, 3–3.5 mm in diam. Ovary spherical, glabrous, stigma mamillate, stigma glabrous.

Fruits.— Fruit green, spherical, 5–6 mm in diam., 5–6 mm.

Distribution, ecology.— South America, Venezuela (Amazomas: Cerro Aracamuni, Cerro Duida, Sierra de la Neblina), 1400–1500 m, Riparian, semi-open, and montane forests along sandstone escarpments.

Illustrations.— • Dessin in Berry & al. (1995). Flora of the Venezuelan Guayana.

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).