Piper cernuum

Primary tabs

Piper cernuum

<<Fruits>Stigma>Length

to 8 mm long1
1. 005-002-001

<<Inflorescences>Peduncle>Length

1-3(-5) cm long2
2. 004-002-001

<<Inflorescences>Spikes>Length

20-60 cm long3
3. 004-003-001

<<Petiole>Blade>Apex

apex acute,4
4. 003-002-004

<<Petiole>Blade>Base

base equal or almost equally attached to petiole, deeply unequally lobed, glabrous or sparsely pubescent above, veins glabrescent above, densely pubescent below;5
5. 003-002-005

<<Petiole>Blade>Dimensions

23-60 x 14-28 cm6
6. 003-002-003

<<Petiole>Blade>Shape

broadly ovate to elliptic-ovate7
7. 003-002-002

<<Petiole>Blade>Texture

not scabrous8
8. 003-002-001

<Fruits>Stigma

stigmas 3, sessile, .9
9. 005-002

<Fruits>Width

ca. 2-2.5 mm wide10
10. 005-001

<Habit>Height

2-6 m tall11
11. 001-001

<Inflorescences>Floral bracts

floral bracts marginally fringed;12
12. 004-005

<Inflorescences>Growth form

pendent13
13. 004-001

<Inflorescences>Peduncle

peduncle , densely pubescent;14
14. 004-002

<Inflorescences>Rachises

rachis glabrous;15
15. 004-004

<Inflorescences>Spikes

spike , yellow, not apiculate;16
16. 004-003

<Inflorescences>Stamens

stamens laterally dehiscent.17
17. 004-006

<Petiole>Blade

blade , not glandular-dotted, , ,18
18. 003-002

<Petiole>Length

4-9 cm long19
19. 003-001

<Petiole>Veins

pinnately veined, secondary veins 5-8 per side, originating from lower 3/4 or more of primary vein, flat above and prominulous below, tertiary veins widely reticulate or sometimes transverse.20
20. 003-003

Citation

Vell. 1831 – In: Icon. t. 58

Description

Shrub or treelet, 2-6 m tall. Stem densely pubescent. Petiole vaginate to apex, 4-9 cm long, densely pubescent; blade not scabrous, not glandular-dotted, broadly ovate to elliptic-ovate, 23-60 x 14-28 cm, apex acute, base equal or almost equally attached to petiole, deeply unequally lobed, glabrous or sparsely pubescent above, veins glabrescent above, densely pubescent below; pinnately veined, secondary veins 5-8 per side, originating from lower 3/4 or more of primary vein, flat above and prominulous below, tertiary veins widely reticulate or sometimes transverse. Inflorescence pendent; peduncle 1-3(-5) cm long, densely pubescent; spike 20-60 cm long, yellow, not apiculate; rachis glabrous; floral bracts marginally fringed; stamens laterally dehiscent. Fruits obovoid, ca. 2-2.5 mm wide, puberulent at apex, stigmas 3, sessile, to 8 mm long.

Distribution

French Guiana present, Guyana present, Southern America: Colombia (Colombia present); Peru (Peru present); Venezuela (Venezuela present)
Colombia, Peru, Venezuela, Brazil, Guyana and French Guiana; 10 collections studied (GU: 3; FG: 5).

Fruits

Fruits obovoid, , puberulent at apex,21
21. 005

Habit

Shrub or treelet, .22
22. 001

Individuals Association

foot of Mt. Galbao, de Granville et al. 8434 sommet Tabulaire, Cremers et al. 6513 Saül, de Granville et al. B-5436 Guyana, Potaro-Mazaruni region, Kaieteur Falls, Hahn 4654 Guyana, Potaro-Mazaruni region, Kaieteur Falls, Hahn 4728 Guyana, Potaro-Mazaruni region, Kaieteur Falls, Hahn 4178

Inflorescences

Inflorescence ;23
23. 004

Notes

Steyermark (1984: 367-373) discerned several varieties and formas within Piper cernuum. With the small amount of Guianan specimens available it is impossible to distinguish different entities here.
Piper cernuum and P. obliquum are very similar morphologically. Distinguishing characters are mentioned in the note to P. obliquum.

Petiole

Petiole vaginate to apex, , densely pubescent;24
24. 003

Stems

Stem densely pubescent.25
25. 002