Paullinia degranvillei
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BibTeX: @article{Acevedo-Rodríguez2011PhytoKeys7, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Acevedo-Rodríguez2011PhytoKeys7">{{Citation See also the citation download page at the journal. |
Ordo: Sapindales
Familia: Sapindaceae
Genus: Paullinia
Name
Paullinia degranvillei Acev.-Rodr., sp. nov. – Wikispecies link – Pensoft Profile
Latin
A Paullinia obovata (Ruiz & Pav.) Pers. folioliis nervo reticulatis e fructo pyriformes diversa.
Type
French Guiana. Crique Caiman, rive gauche de l’ Oyapock à environ 70 km SW St. Georges, de Granville T-1065 (holotype: CAY!; isotypes: CAY!, P, US!).
Description
Liana to 30 m long. Stems terete, lenticellate, ferruginous, minutely sericeous-pubescent; cross section of stem with a single vascular cylinder. Stipules ca. 0.5 mm long, triangular, early deciduous. Leaves pinnately 5-foliolate; petioles (1) 7–9 cm long; unwinged, adaxially furrowed, sericeous-pubescent to glabrous; rachis 2–8 cm long, narrowly winged or margined, sericeous-pubescent to glabrous; petiolules of distal and lateral leaflets 2–2.5 cm long, glabrous; leaflets (3.5) 12–22 × (2.7) 5.5–8 cm, elliptic, coriaceous, glabrous, the base acute or obtuse on lateral and basal leaflets, attenuate on distal leaflet, the apex obtusely acuminate to caudate, glandular at the very tip, the margins crenate or remotely glandular-dentate, revolute; venation prominent abaxially; tertiary venation reticulate. Thyrses 3–23 cm long, axillary, solitary, racemiform, with sericeous-pubescent axes; cincinni sessile, few-flowered. Flowers unknown (remnant sepals sericeous). Capsule 4–5 cm long, woody, pyriform, unwinged, reddish, long-stipitate (5–8 mm long), glabrous, pericarp ca. 4 mm thick, endocarp sparsely pubescent or glabrous. Seed unknown.
Distribution and ecology
Known only from French Guiana, from submontane forest.
Additional specimen examined
French Guiana. Monts Atachi Bacca, 780 m elev., de Granville et al. 10833 (B, CAY, US).
Discussion
Paullinia degranvillei seems to be closely related to Paullinia obovata (Ruiz & Pav.) Pers. as they both have large, unwinged capsules with a thick mesocarp. Paullinia degranvillei differs from Paullinia obovata by it leaflets with tertiary reticulate venation (vs. clathrate) and by its pyriform fruits (vs. obovoid).
Etymology
The specific epithet honors Dr. Jean-Jacques de Granville, who collected the type of this new species.
Original Description
- Acevedo-Rodríguez, P; 2011: Four new species of Sapindaceae from the Guianas PhytoKeys, 7: 11-20. doi
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