Passiflora plumosa Feuillet & Cremers, Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C: Biological and Medical Sciences 87(3): 381, f. 2. 1984.

Mezzonato-Pires, Ana Carolina, Milward-de-Azevedo, Michaele Alvim, Mendonca, Claudia Barbieri Ferreira & Goncalves-Esteves, Vania, 2018, Taxonomy, palynology and distribution notes of seven species of Passiflora L. (Passifloraceae s. s.) newly recorded from Brazil, PhytoKeys 95, pp. 1-14 : 8

Passiflora plumosa Feuillet & Cremers, Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C: Biological and Medical Sciences 87(3): 381, f. 2. 1984. Fig. 2I, J

Descriptions.

Lianas; tendrils thin, glabrous. Stipules diminute, linear. Petioles with two glands on the terminal end of the adaxial side. Blades 14.2-22 × 6.3-8.5 cm, membranous, oblong, apex attenuate, base obtuse, glabrous on both sides; margins inconspicuous, with two glands at base; 13-19 pairs of secondary veins, arcuate. Bracts diminute, deltoid, alternate. Flowers solitary or arranged in racemose inflorescences, hypanthium cylindrical to slightly funnelform; sepals linear-oblong; petals linear-oblong; corona with 4 series of filaments, white, filaments of first series liguliform, filaments of second series linear or liguliform, filaments of third and fourth series liguliform, plumose, reflexed or not; operculum straight, tubular exserted, apex crenulate; trochlea absent in the androgynophore; ovary oblongoid, densely velutine. Fruits not seen.

Palynology.

Pollen grains not seen.

Specimens examined.

BRAZIL. Amazonas: Itapiranga: rio Uatumã, the left bank, in front of the Rio Pitinga , [2°44'56"S, 58°1'19"W], 27 Aug 1979 [fl], C.A.Cid et al. 561 (MG); Presidente Figueiredo, Rebio Uatumã, 1°00'S, 59°00"W, grid of PPBio s.n., portion L3/500, [2°2'4"S, 60°1'30"W], 11 Jul 2008 [fl], F.A. Carvalho 31UAT (INPA) .

Distribution and ecology.

The species was hitherto known to occur exclusively in its type locality, in the central-southern forests of French Guiana. Two specimens were identified by the authors, occurring in the state of Amazonas, municipalities of Itapiranga and Presidente Figueiredo. The new-found specimens were collected growing in Floresta Ombrófila Densa and Floresta de Terra Firme formations, on river edges with clay soil, at 600 m elevation.

Taxonomic comments.

Passiflora plumosa belongs to P. subg. Astrophea sect. Leptopoda Killip ex Feuillet & Cremers. It can be differentiated by its glabrous and membranous leaf-blades, corona with four series of filaments, all of them being liguliform in shape and the second and fourth or the third and fourth series with reflexed filaments. The apex of the operculum of P. plumosa can easily distinguish this species from P. cauliflora Harms and P. cerradensis , due to its crenulate apex.

Figures

Figure 2. Illustrations of leaves and flowers in longitudinal section. A, B Passiflora amoena (S. V. Costa Neto et al. 2818, HAMAB) C, D Passiflora fuchsiiflora (S. Sakagawa et al. 248, INPA) E, F Passiflora jussieui (D. C. Daly et al. 7423, UPCB) G, H Passiflora ovata (S. Sakagawa et al. 668, INPA) I, J Passiflora plumosa (C. A. Cid et al. 561, MG) K, L Passiflora quelchii (R. C. Forzza et al. 8321, RB) M, N Passiflora tessmannii (C. A. Sothers & E. C. Pereira 612, INPA).