Piper dumosum

Primary tabs

Piper dumosum

<<Inflorescences>Peduncle>Length

1-1.2 cm long1
1. 005-002-001

<<Inflorescences>Spikes>Length

5-8 cm long2
2. 005-003-001

<<Petiole>Blade>Apex

apex short-acuminate,3
3. 004-002-004

<<Petiole>Blade>Base

base equal or almost equally attached to petiole, acute, truncate to subcordate, sparsely villous above, more densely so below;4
4. 004-002-005

<<Petiole>Blade>Dimensions

18-22(-27) x 5.5-7.5(-17) cm5
5. 004-002-003

<<Petiole>Blade>Shape

lance-elliptic to ovate to broadly ovate6
6. 004-002-002

<<Petiole>Blade>Texture

may be somewhat bullate in vivo7
7. 004-002-001

<Fruits>Stigma

stigmas 3, erect.8
8. 006-001

<Habit>Height

to 3 m tall9
9. 001-001

<Inflorescences>Floral bracts

floral bracts densely marginally fringed.10
10. 005-004

<Inflorescences>Growth form

pendent11
11. 005-001

<Inflorescences>Peduncle

peduncle , slender, glabrous, green to reddish;12
12. 005-002

<Inflorescences>Spikes

spike , white, yellowish to green, not apiculate;13
13. 005-003

<Petiole>Blade

blade , glandular-dotted, , ,14
14. 004-002

<Petiole>Length

1 mm long15
15. 004-001

<Petiole>Veins

pinnately veined, secondary veins 5-6 per side, originating from lower 3/4 of primary vein.16
16. 004-003

<Stipules>Dimensions

3 x 1.5 cm17
17. 003-001

Common Name

English (French Guiana): yakamilepia, yalitaku?ã

Description

Shrub or treelet to 3 m tall. Stem glabrous, densely dark glandular-dotted. Stipules large 3 x 1.5 cm, early caducous. Petiole 0.5-2(to 6 in fertile twigs) cm long, dark-villous (hairs at least 1 mm long), vaginate to middle, green to reddish; blade may be somewhat bullate in vivo, glandular-dotted, lance-elliptic to ovate to broadly ovate, 18-22(-27) x 5.5-7.5(-17) cm, apex short-acuminate, base equal or almost equally attached to petiole, acute, truncate to subcordate, sparsely villous above, more densely so below; pinnately veined, secondary veins 5-6 per side, originating from lower 3/4 of primary vein. Inflorescence pendent; peduncle 1-1.2 cm long, slender, glabrous, green to reddish; spike 5-8 cm long, white, yellowish to green, not apiculate; floral bracts densely marginally fringed. Fruits obovoid to trigonous, glabrous, depressed at apex when dried, stigmas 3, erect.

Distribution

Guianas present, Southern America
The Guianas and adjacent Brazil; over 70 collections studied (GU: 1; SU: 3; FG: 62).

Fruits

Fruits obovoid to trigonous, glabrous, depressed at apex when dried,18
18. 006

Habit

Shrub or treelet .19
19. 001

Individuals Association

Suriname, Litani R., Rombouts 904 Mt. Chauve, Cremers et al. 15127 Saül area, de Granville et al. 8516 Suriname, Tumac Humac Mts., Telouakem, Acevedo 5837 Guyana, Barima-Waini region, Pipoly 8023

Inflorescences

Inflorescence ;20
20. 005

Notes

Easily recognizable by the glabrous stem and sparsely villous leaves and peduncles; very densely dark-glandular-dotted all over.

Petiole

Petiole 0.5-2(to 6 in fertile twigs) cm long, dark-villous (hairs at least ), vaginate to middle, green to reddish;21
21. 004

Stems

Stem glabrous, densely dark glandular-dotted.22
22. 002

Stipules

Stipules large , early caducous.23
23. 003