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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 schwackeana Loes.

Habit, vegetative morphology.— Shrub (fide Flaster 1989). Current year's branchlets pubescent (poils très courts visibles à la loupe). Branchlets older than one year smooth or furrowed, greyish or reddish, glabrous. Lenticels on current year's branchlets present. Internodes 0.3–2.1 cm. Stipules caducous, linear-triangular, 0.2–0.4 mm. Petiole pubescent (poils très courts), rough or grooved surface, 4–5 mm. Lamina elliptic, lanceolate (1:3), 3.5–5.2 X, 0.8–1.5 cm, coriaceous. Base attenuate or cuneate. Apex obtuse, not mucronate. Apex retuse or rounded. Margin rolled up, entire. Midbrid adaxially impressed, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 6–8 pairs. Tertiary veins abaxially obscure. Ponctuation abaxiallly absent.

Inflorescences.— Thyrse, non proliferating.

Female flowers.— Thyrses axes solitary and axillary. Thyrses axes 0.1–0.2 cm. Cymes of order 1. Peduncles pubescent. Peduncles of order 1 2–3 mm. Pherophylls of order 1 at 2–5 tenth of the base. Bracts linear-triangulate, pubescent, 0.7–1 mm, margin entire. Pherophylls of order 1 opposite, linear-triangulate, pubescent, 0.2–0.3 mm. Female flowers 4 -merous. Calyx glabrous (quelques rares poils), margin entire, 3–3.5 mm in diam. Corolla 2.5–3 mm, petals free or connate on, petals 5–10 % of their length. Apex margin entire (possibly beaded). Staminodes sagittate, glabrous. Ovary ovoid, glabrous, stigma mamillate, stigma glabrous.

Distribution, ecology.— South America, Brazil (Rio de Janeiro).

Flowering.— October.

Illustrations.— • Planche Glaziou 18192 K f (LT). • Inflorescence Glaziou 18192 K f (LT). • Planche Glaziou 18192 P f I(LT). • Etiquettes Glaziou 18192 P f (ILT). • Rameau Glaziou 18192 P f (ILT). • Inflorescence Glaziou 18192 P f (ILT).


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).