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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 tiricae Edwin

Habit, vegetative morphology.— Tree or shrub, evergreen, 0.5–4 m tall. Current year's branchlets glabrous. Branchlets older than one year rough, greyish, glabrous. Lenticels on current year's branchlets absent or hardly visible. Internodes 0.1–1.5 cm. Stipules caducous, linear-triangular, 1.5–2 mm. Petiole glabrous, 7–12 mm. Lamina elliptic, oblong (1:2), 2–6 X, 1.5–4 cm, coriaceous, glabrous abaxially. Base cuneate to obtuse. Apex obtuse, mucronate. Apex acuminate. Acumen 0.1–0.5 cm. Margin revolute, entire (dentée (?) selon Edwin). Midbrid adaxially impressed or flat, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 5–6 pairs (7–9 selon Edwin). Tertiary veins abaxially obscure. Ponctuation abaxiallly absent.

Inflorescences.— Thyrse, proliferating.

Female flowers.— Thyrses axes solitary and axillary or terminal. Thyrses axes 2–8 cm. Cymes of order 1. Peduncles glabrous. Peduncles of order 1 14–24 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, linear-triangulate, glabrous, 1 mm, margin entire. Female flowers 5–6 -merous. Calyx glabrous, margin entire, 4–5 mm in diam. Ovary glabrous, stigma mamillate, stigma glabrous.

Fruits.— Fruit spherical, 7–10 mm in diam., 7–10 mm.

Distribution, ecology.— South America, Venezuela (Bolívar: Auyán-tepui, Macizo del Chimantá), 1600–2200 m, Montane thickets and riparian forests overlying sandstone, Bonnetia roraimae forest.

Illustrations.— • Dessin in Berry & al. (1995). Flora of the Venezuelan Guayana. • Planche Steyermark 803 MO. • Etiquette Steyermark 803 MO. • Feuilles Steyermark 803 MO. • Fruit et feuilles Steyermark 803 MO. • Planche Steyermark 128398 MO. • Etiquette Steyermark 128398 MO. • Fruits et feuilles Steyermark 128398 MO. • Planche Steyermark, J. A. 93217 M f. • Rameau Steyermark, J. A. 93217 M f. • Infrutescence Steyermark, J. A. 93217 M f. • Infrutescence Steyermark, J. A. 93217 M f. • Planche Steyermark 93461 BR f. • Etiquette Steyermark 93461 BR f. • Rameau Steyermark 93461 BR f. • Planche Steyermark 803 NY.


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).