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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 naiguatina Loes.

Habit, vegetative morphology.— Shrub, evergreen, 1.5–2 m tall. 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 0.1–0.5 cm. Stipules caducous, linear-triangular, 1 mm. Petiole glabrous, smooth surface, 4–9 mm. Lamina obovate, oblong (1:2), 2.5–4 X, 1.5–2.6 cm, coriaceous, glabrous abaxially. Base obtuse. Apex rounded, not mucronate. Apex rounded. Margin revolute, crenate to dentate, teeth conspicuous. Teeth 6–7 ca., over the entire length of the margin. Midbrid adaxially flat, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 6–8 pairs. Tertiary veins abaxially evident. Ponctuation abaxiallly present.

Inflorescences.— Solitary dichasium.

Male flowers.— Cymes of order 2. Peduncles glabrous. Peduncles of order 1 15–17 mm. Pherophylls of order 1 at 6–7 tenth from the base. Peduncles of order 2 5–7 mm. Pherophylls of order 2 at 5 tenth from the base. Pherophylls of order 1 opposite, deltoid, glabrous, 1 mm, margin entire. Male flowers 4 -merous. Calyx glabrous, 2.5 mm in diam., margin entire. Corolla 2.5 mm, petals connate on, petals 20 % of their length. Apex margin entire. Stamens at the anthesis equal to corolla. Rudimentary ovary subglobulous or flattened, glabrous.

Female flowers.— Cymes of order 1. Peduncles glabrous. Peduncles of order 1 8–9 mm. Pherophylls of order 1 at 5 tenth of the base. Pherophylls of order 1 opposite, deltoids, glabrous, 1 mm, margin entire. Female flowers 4 -merous. Calyx glabrous, margin entire (quelques rares poils), 4 mm in diam.

Fruits.— Fruit ovoid, 4–5 mm in diam., 4–5 mm.

Distribution, ecology.— South America, Venezuela, 2500–2700 m.

Illustrations.— • Planche Jahn s.n.[a] & [b] K m(LT) & f(ST). • Infrutescence Jahn s.n.[b] K f(ST). • Inflorescence Jahn s.n.[a] K m(LT). • Limbe, face inférieure Jahn s.n.[a] K m(LT).


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).