Zollernia glaziovii Yakovlev

Vidal de Freitas Mansano, Ana Maria Goulart de Azevedo Tozzi, & Lewis, G. (2004). A Revision of the South American Genus Zollernia Wied-Neuw. & Nees (Leguminosae, Papilionoideae, Swartzieae). Kew Bulletin, 59(4), 497-520. doi:10.2307/4110905

Type

Brazil, Rio de Janeiro, Nova Friburgo, Glaziou 19054 (holotype: LE!; isotypes G!, K!, NY!, P!, R! UC!, US!).

Morphology General Habit

Tree

Morphology Leaves Stipules

Stipules 1 - 3.3 x 0.4 - 2 mm, lanceolate to subulate, glabrous or sparsely strigose; leaf with petiole 2.4 - 3.5 mm long, glabrous; blade 2.7 - 4.8 x 0.9 - 1.4 cm, oblong-elliptic, chartaceous, glabrous, shining, base cuneate, apex acute and mucronate, main vein prominent on both surfaces, the secondary veins slightly ascendant, forming an angle of 50 to 60° with the central vein, incurved, restricted to the lower half of the blade

Morphology Reproductive morphology Inflorescences

Racemes 14 - 17-flowered, in terminal fascicles, 2.5 - 5 cm long, axis c. 0.9 mm in diam., ferrugineous or fulvous- tomentose; bracts c. 1 x 0.4 mm, deltoid, tomentose basally; bracteoles c. 0.6 x 0.5 mm, wide-elliptic, tomentose, attached halfway up the pedicel; pedicel 5 - 6.5 mm long, terete, tomentose; buds 8.3 - 9.1 x 2.3 - 3 mm, asymmetric-elliptic, apex acuminate, base acute, puberulous to tomentose

Morphology Reproductive morphology Flowers

Calyx spathaceous, 1-lobed, chartaceous, glabrous on inner surface at the base and tomentose at the apex; petals pink-violet, claw c. 0.8 x 0.5 mm, blade 4.6 - 5 x 2.3 - 3.3 mm; stamens 9 - 10, filaments 1.6 - 2 mm long, glabrous, anthers 3.7 - 4.5 x 0.5 - 0.8 mm, subulate, apex apiculate, glabrous; gynoecium with stipe c. 1.4 mm long, tomentose-sericeous, ovary c. 3.7 x 1.5 mm, elliptic, 7 - 10 ovulate, style c. 2.5 mm long, terminal, incurved, glabrous, stigma punctiform, glabrous

Morphology Reproductive morphology Fruits

Fruit subglobose, 1.5 - 3 x 0.8 - 1.5 cm, 1 - 3-seeded.

Distribution

This species is endemic to the state of Rio de Janeiro (Mansano & Tozzi 1999b), occurring more specifically in the surroundings of the municipal district of Rio de Janeiro and also in Nova Friburgo

Ecology

This is a species of the Atlantic Rain Forest (Floresta Pluvial Tropical Atlântica).

Phenology

Flowering between May and June.

Note

Taubert wrote the name Zollernia parvifolia on the label of a herbarium specimen from Berlin, later cited by Glaziou (1906) as a new species, but the name was never effectively published. Yakovlev (1976) first effectively described Z. glaziovii. Zollernia glaziovii is not very distinct, and is sometimes confused with other species, especially those with oblong-elliptic leaves with an acute and mucronate apex, secondary veins slightly ascendant and incurved, and the second pair of the secondary veins restricted to the lower half of the blade.

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: threatened. Confidence: confident