Piper inaequale

Primary tabs

Piper inaequale

<<<Petiole>Blade>Base>Differential distance

0-0.5 cm1
1. 002-002-005-001

<<Inflorescences>Peduncle>Length

1.5-2.5 cm long2
2. 003-002-001

<<Inflorescences>Spikes>Length

1.5-5 cm long3
3. 003-003-001

<<Inflorescences>Spikes>Width

to 0.5 cm wide4
4. 003-003-002

<<Infructescences>Fruits>Stigma

stigmas 3-4, lanceolate, sessile.5
5. 004-002-002

<<Infructescences>Fruits>Width

ca. 2 mm wide6
6. 004-002-001

<<Petiole>Blade>Apex

apex acute to short-acuminate, lower half of blade asymmetrical,7
7. 002-002-004

<<Petiole>Blade>Base

base unequally attached to petiole difference : shorter side obtuse to abruptly acute, longer side abruptly rounded, obtuse or cordate, glabrous, except minutely pubescent veins below;8
8. 002-002-005

<<Petiole>Blade>Dimensions

20-24(-36) x 7.5-9.5(-17) cm9
9. 002-002-003

<<Petiole>Blade>Shape

elliptic-oblong or somewhat ovate10
10. 002-002-002

<<Petiole>Blade>Texture

not scabrous11
11. 002-002-001

<Habit>Height

to 3(-5) m tall12
12. 001-001

<Inflorescences>Floral bracts

floral bracts densely marginally fringed.13
13. 003-005

<Inflorescences>Growth form

pendent14
14. 003-001

<Inflorescences>Peduncle

peduncle slender, , glabrous;15
15. 003-002

<Inflorescences>Rachises

rachis glabrous;16
16. 003-004

<Inflorescences>Spikes

spike , , not apiculate;17
17. 003-003

<Infructescences>Fruits

fruits obovoid or slightly flattened, , somewhat separate, glabrous or minutely papillate,18
18. 004-002

<Infructescences>Length

to 9 cm long19
19. 004-001

<Petiole>Blade

blade sometimes discolorous and pale brown beneath, , not conspicuously glandular-dotted, , ,20
20. 002-002

<Petiole>Length

2.5-4.5(-7.5) cm long21
21. 002-001

<Petiole>Veins

pinnately veined, secondary veins 5-6(-8) per side, widely spaced, originating from lower 2/3 or more of primary vein, anastomosing well within margin, prominent below, tertiary veins very widely reticulate, minutely pubescent below.22
22. 002-003

Description

Shrub or treelet to 3(-5) m tall, almost glabrous. Petiole 2.5-4.5(-7.5) cm long, vaginate and narrowly winged to apex; blade sometimes discolorous and pale brown beneath, not scabrous, not conspicuously glandular-dotted, elliptic-oblong or somewhat ovate, 20-24(-36) x 7.5-9.5(-17) cm, apex acute to short-acuminate, lower half of blade asymmetrical, base unequally attached to petiole difference 0-0.5 cm: shorter side obtuse to abruptly acute, longer side abruptly rounded, obtuse or cordate, glabrous, except minutely pubescent veins below; pinnately veined, secondary veins 5-6(-8) per side, widely spaced, originating from lower 2/3 or more of primary vein, anastomosing well within margin, prominent below, tertiary veins very widely reticulate, minutely pubescent below. Inflorescence pendent; peduncle slender, 1.5-2.5 cm long, glabrous; spike 1.5-5 cm long, to 0.5 cm wide, not apiculate; rachis glabrous; floral bracts densely marginally fringed. Infructescence to 9 cm long; fruits obovoid or slightly flattened, ca. 2 mm wide, somewhat separate, glabrous or minutely papillate, stigmas 3-4, lanceolate, sessile.

Distribution

French Guiana present, N Brazil present, Southern America: Brazil North (Amapá present), Terr. Roraima present
N Brazil (Amapá, Terr. Roraima) and French Guiana; 35 collections studied (FG: 32).

Habit

Shrub or treelet , almost glabrous.23
23. 001

Individuals Association

Armontabo R., Prévost 1899 Approuague R. basin, between Régina and Saint Georges, Cremers et al. 14245 Oyapock R. area, Irwin et al. 47808 Oldeman 2727 Zidock village, Prévost 1951 Upper Marouini R. basin, de Granville et al. 9953

Inflorescences

Inflorescence ;24
24. 003

Infructescences

Infructescence ;25
25. 004

Notes

Piper inaequale up till now was an obscure taxon, known only from the type collection from French Guiana. It was not mentioned in the treatments neither of Steyermark nor of Burger. Trelease & Yuncker mentioned only the type collection, which is a specimen without fruits. After comparison of the type and further collections I conclude that P. amapense is conspecific with P. inaequale.

Petiole

Petiole , vaginate and narrowly winged to apex;26
26. 002