Bandeau CJB Retour à l'accueil
Conservatoire et Jardin botaniques de la Ville de Genève

Logo CJB Conservatoire et Jardin botaniques de la Ville de Genève
Monographia Aquifoliacearum - Loizeau Pierre-André & Gabrielle Barriera


impression


Aquifoliaceae of Neotropics

Loizeau P.-A. & G. Barriera


Ilex lasseri Edwin

Habit, vegetative morphology.— Tree, evergreen. 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 0.1–1 cm. Stipules caducous, linear-triangular, 0.5 mm. Petiole glabrous, rough or grooved surface, 3–6 mm. Lamina obovate, oblong (1:2), 4.5–9 X, 2.2–4.2 cm, coriaceous, glabrous abaxially. Base cuneate or acute. Apex rounded or obtuse, mucronate. Apex retuse or rounded. Margin revolute (parfois enroulée), entire. Midbrid adaxially impressed (bordures de la nervure légèrement proéminentes) or flat, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially obscure, 5–7 pairs. Tertiary veins abaxially obscure. Ponctuation abaxiallly present.

Inflorescences.— Thyrse, proliferating.

Female flowers.— Thyrses axes solitary and axillary. Thyrses axes 5–10 cm. Cymes of order 1–2. Peduncles glabrous. Peduncles of order 1 10–13(–23) mm. Pherophylls of order 1 at 7–8 tenth of the base. Peduncles of order 2 2–3 mm. Pherophylls of order 2 at 0–1 tenth of the base. Bracts linear-triangulate, glabrous, 2 mm, margin entire. Pherophylls of order 1 opposite, linear-triangulate, glabrous, 0.5 mm, margin entire. Female flowers 4–5 -merous. Calyx glabrous, margin entire, 4–5 mm in diam.

Fruits.— Fruit ovoid, 5–6 mm in diam., 6–7 mm.

Distribution, ecology.— South America, Venezuela (Kavanayen).


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).