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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 trichoclada Loes.

Habit, vegetative morphology.— Shrub, evergreen, 2–3 m tall. Current year's branchlets glabrous or hirsute. Branchlets older than one year rough, greyish, glabrous or pubescent, dense short trichomes (écorce à l'aspect pustuleux). Lenticels on current year's branchlets absent or hardly visible. Internodes 0–0.4 cm. Stipules persistent or caducous, linear-triangular, 0.5 mm. Petiole glabrous (à glabrescent), rough or grooved surface, 2–2.5 mm. Lamina elliptic, orbiculate (1:1) to oblong (1:2), 0.6–1.3 X, 0.4–0.8 cm, coriaceous, glabrous abaxially. Base obtuse to rounded. Apex obtuse, mucronate. Apex rounded. Margin plane or revolute, dentate, teeth conspicuous. Teeth 2–6 ca., on the distal half of the margin. Midbrid adaxially impressed or flat, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially obscure (ou invisibles), 2–4 pairs. Tertiary veins abaxially obscure. Ponctuation abaxiallly absent.

Inflorescences.— Solitary dichasium.

Male flowers.— Cymes of order 1–2. Peduncles glabrous. Peduncles of order 1 3.5–5 mm. Pherophylls of order 1 at 3–8 tenth from the base. Peduncles of order 2 1.5–2 mm. Pherophylls of order 2 at 0–1 tenth from the base. Pherophylls of order 1 opposite, deltoid, glabrous, 0.5 mm, margin entire. Male flowers 4 -merous, white. Calyx glabrous, 1.5 mm in diam., margin ciliate or dentate. Corolla 2 mm, petals connate on, petals 20–25 % of their length. Apex margin entire (papilleuse). Stamens at the anthesis shorter than corolla. Rudimentary ovary subglobulous or flattened (selon LOESENER 1901), glabrous.

Female flowers.— Cymes of order 1–2. Peduncles glabrous or pubescent. Peduncles of order 1 2–3 mm. Pherophylls of order 1 at 4–5 tenth of the base. Peduncles of order 2 1.5 mm. Pherophylls of order 2 at 0–1 tenth of the base. Pherophylls of order 1 opposite, deltoids or linear-triangulate, glabrous, 0.5–0.6 mm, margin entire. Female flowers 4 -merous, white. Calyx glabrous or pubescent, margin ciliate or dentate, 2–4 mm in diam. Corolla 2–3 mm, petals connate on, petals 20 % of their length. Apex margin entire (possibly beaded). Staminodes ovate, glabrous. Ovary spherical, glabrous, stigma capitate, stigma glabrous.

Fruits.— Fruit ovoid, 4.5 mm in diam., 5 mm.

Distribution, ecology.— South America, Bolivia (Huaycani), 3600–4000 m.

Illustrations.— • Planche Pearce s.n. K m (HT). • Rameau Pearce s.n. K m (HT). • Inflorescence, limbe, face supérieure & inférieure Pearce s.n. K m (HT).


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).