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Conservatoire et Jardin botaniques de la Ville de Genève

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Monographia Aquifoliacearum - Loizeau Pierre-André & Gabrielle Barriera


Aquifoliaceae of Neotropics

Loizeau P.-A. & G. Barriera

Ilex pseudothea Reissek

Habit, vegetative morphology.— Evergreen. Current year's branchlets pubescent (rares et courts). Branchlets older than one year smooth or furrowed, brownish, pubescent, sparse trichomes. Lenticels on current year's branchlets present. Internodes 0.1–0.3 cm. Stipules persistent, linear-triangular (linéaires), 0.5–1 mm. Petiole pubescent (poils courts), rough or grooved surface, 4–6 mm. Lamina elliptic, oblong (1:2), 3–5 X, 1.5–2.5 cm, papyraceous, glabrous abaxially. Base acute to obtuse. Apex rounded to obtuse, mucronate. Apex rounded or acuminate. Acumen 0.2–0.5 cm. Margin revolute, dentate, teeth conspicuous. Teeth 12–20 ca., over the entire length of the margin. Midbrid adaxially impressed, glabrous. Midbrid abaxially raised, glabrous. Secondary veins abaxially evident, 7–9 pairs. Tertiary veins abaxially evident. Ponctuation abaxiallly present.

Inflorescences.— Thyrsoid (à confirmer), homocladic, with subthyrsoids alternate.

Male flowers.— Thyrses axes solitary and axillary. Thyrses axes 0.8–2 cm. Cymes of order 1–2. Peduncles pubescent. Peduncles of order 1 0.5–1 mm. Pherophylls of order 1 at 0–1 tenth from the base. Peduncles of order 2 0.5 mm. Pherophylls of order 2 at 0–1 tenth from the base. Bracts deltoids or linear-triangular (linéaires), pubescent, 0.5–1 mm, margin entire. Pherophylls of order 1 opposite, deltoid, pubescent, 0.5 mm, margin entire. Male flowers 4 -merous. Calyx pubescent (poils peu nombreux), 3–3.5 mm in diam., margin ciliate or dentate (ciliées). Apex margin entire. Rudimentary ovary pyramidal, glabrous.

Distribution, ecology.— South America, Brazil.

Illustrations.— • Planche Sello 926 [s.n.] W m (ST). • Rameau Sello s.n. 926 [s.n.] W m (ST). • Inflorescence Sello s.n. 926 [s.n.] W m (ST). • Inflorescence Sello s.n. 926 [s.n.] W m (ST). • Planche Sello 926 BR m (ST). • Rameau Sello 926 BR m (ST).

Cite this publication as: ‘Loizeau, P.-A. & G. Barriera (2007). Aquifoliaceae néotropicales: Descriptions, Illustrations, Identification, et Recherche d'Information. Version: 1st march 2007.
Loizeau (1994) et Loizeau & Spichiger (1992) should also be cited (see Bibliography).