Peperomia urocarpa

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Peperomia urocarpa

Content

<<Inflorescences>Peduncle>Length

2-4 cm long1
1. 004-002-001

<<Inflorescences>Spikes>Length

1.5-5 cm long2
2. 004-003-001

<<Leaves>Blade>Apex

apex acute to obtuse,3
3. 003-002-004

<<Leaves>Blade>Base

base truncate to subcordate, occasionally obtuse, pubescent or villous on both sides, glabrescent;4
4. 003-002-005

<<Leaves>Blade>Dimensions

2-3 x 2.7-7 cm5
5. 003-002-002

<<Leaves>Blade>Margins

margin ciliolate towards apex,6
6. 003-002-003

<<Leaves>Blade>Shape

deltoid, ovate to broadly ovate7
7. 003-002-001

<<Leaves>Petiole>Length

1.5-4.5 cm long8
8. 003-001-001

<Fruits>Stigma

stigma at base of beak.9
9. 005-001

<Inflorescences>Floral bracts

floral bracts rounded, with scariose margin.10
10. 004-004

<Inflorescences>Peduncle

peduncle , crisp-pubescent, 1-2 bracteate;11
11. 004-002

<Inflorescences>Position

terminal12
12. 004-001

<Inflorescences>Spikes

spike , about as long as peduncle;13
13. 004-003

<Leaves>Blade

blade pale glandular-dotted, , ,14
14. 003-002

<Leaves>Petiole

petiole , crisp-pubescent;15
15. 003-001

<Leaves>Veins

palmately 5-7-veined.16
16. 003-003

Description

Epiphytic or epilithic herb. Stem rooting at nodes, ascending, crisp-pubescent, glabrescent. Leaves alternate; petiole 1.5-4.5 cm long, crisp-pubescent; blade pale glandular-dotted, deltoid, ovate to broadly ovate, 2-3 x 2.7-7 cm, margin ciliolate towards apex, apex acute to obtuse, base truncate to subcordate, occasionally obtuse, pubescent or villous on both sides, glabrescent; palmately 5-7-veined. Inflorescence solitary, simple, terminal; peduncle 2-4 cm long, crisp-pubescent, 1-2 bracteate; spike 1.5-5 cm long, about as long as peduncle; floral bracts rounded, with scariose margin. Fruits brown, ellipsoid with distinct beak, stigma at base of beak.

Distribution

Guyana present, Southern America: Colombia (Colombia present); Ecuador (Ecuador present); Venezuela (Venezuela present), Suriname present
West Indies, Colombia, Venezuela, Guyana, Suriname, Ecuador and Brazil; 13 collections studied (GU: 7; SU: 4; FG: 2).

Fruits

Fruits brown, ellipsoid with distinct beak,17
17. 005

Habit

Epiphytic or epilithic herb.18
18. 001

Individuals Association

Suriname, 4 km NE of Sipaliwini airstrip, LBB 17284, 17285, McDowell Suriname, Wilhelmina Mts., Juliana peak, Irwin et al. 54682 degrad Claude, little Tamouri Cr., de Granville et al. 2195 Guyana, along E bank of Ushe R., to Lalluvia Cr. and falls, McDowell 2713 upper Oyapock R., de Granville et al. 2522 Guyana, Cuyuni-Mazaruni region, Paruima, Clarke 1147

Inflorescences

Inflorescence solitary, simple, ;19
19. 004

Leaves

Leaves alternate;20
20. 003

Notes

The collection Pakaraima Mts., NW side Mt. Ayanganna, Cuyuni-Mazaruni region, 1100-1200 m elev., Hoffman 3252 (U) seems to belong to Peperomia urocarpa and not — as has been suggested — to P. manarae Steyerm. It is a rather glabrous specimen, but bears the typical beaked fruit as in P. urocarpa. Peperomia manarae is known only from the Cordillera Costanea in the Aragua province in Venezuela.
Because of the often deltoid leaves, P. pellucida and P. urocarpa could be confused. P. urocarpa, however, has longer leaf blades (2.7-7 cm instead of 1-3.7(-5) cm in P. pellucida) and longer petioles (1.5-4.5 cm instead of 0.3-2.5 cm in P. pellucida). Fruits in P. urocarpa are ellipsoid with a distinct beak, whereas in P. pellucida fruits are globose with apical stigma, sometimes a short style has been developed.

Stems

Stem rooting at nodes, ascending, crisp-pubescent, glabrescent.21
21. 002