Piper humistratum

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Piper humistratum

Content

• <<<Petiole>Blade>Base>Differential distance
• <<Inflorescences>Peduncle>Length
• <<Inflorescences>Spikes>Length
• <<Infructescences>Fruits>Stigma
• <<Petiole>Blade>Apex
• <<Petiole>Blade>Base
• <<Petiole>Blade>Dimensions
• <<Petiole>Blade>Shape
• <<Petiole>Blade>Texture
• <Habit>Height
• <Inflorescences>Floral bracts
• <Inflorescences>Growth form
• <Inflorescences>Peduncle
• <Inflorescences>Spikes
• <Infructescences>Fruits
• <Petiole>Blade
• <Petiole>Length
• <Petiole>Veins
• Common Name
• Description
• Distribution
• Habit
• Individuals Association
• Inflorescences
• Infructescences
• Notes
• Petiole
• Stems

<<<Petiole>Blade>Base>Differential distance

0.2-0.5 cm1

1. 003-002-005-001

<<Inflorescences>Peduncle>Length

1.5-2.5 cm long2

2. 004-002-001

<<Inflorescences>Spikes>Length

2-4 cm long3

3. 004-003-001

<<Infructescences>Fruits>Stigma

stigmas 4, sessile.4

4. 005-001-001

<<Petiole>Blade>Apex

apex obtuse or acutish,5

5. 003-002-004

<<Petiole>Blade>Base

base unequally attached to petiole difference , obliquely rounded, glabrous above, veins brown-villous below;6

6. 003-002-005

<<Petiole>Blade>Dimensions

9-15(-18) x 5-7(-8.5) cm7

7. 003-002-003

<<Petiole>Blade>Shape

elliptic to broadly elliptic8

8. 003-002-002

<<Petiole>Blade>Texture

not scabrous9

9. 003-002-001

<Habit>Height

0.35 m tall10

10. 001-001

<Inflorescences>Floral bracts

floral bracts glabrous, slightly cucullate.11

11. 004-004

<Inflorescences>Growth form

erect12

12. 004-001

<Inflorescences>Peduncle

peduncle , villous;13

13. 004-002

<Inflorescences>Spikes

spike , green or yellow or "rosish", not apiculate;14

14. 004-003

<Infructescences>Fruits

fruits oblongoid, sunken, glabrous,15

15. 005-001

<Petiole>Blade

blade discolourous, , not conspicuously glandular-dotted, , ,16

16. 003-002

<Petiole>Length

1-2(-5.5) cm long17

17. 003-001

<Petiole>Veins

pinnately veined, secondary veins 3-5 per side, originating from lower 3/4 or more of primary vein, anastomosing, impressed above, prominent below like tertiary veins, those loosely reticulate.18

18. 003-003

Common Name

English (French Guiana): zaõ saapatu

Description

Creeping herb or subshrub to 0.35 m tall. Stem villous often with white hairs. Petiole 1-2(-5.5) cm long, villous; blade discolourous, not scabrous, not conspicuously glandular-dotted, elliptic to broadly elliptic, 9-15(-18) x 5-7(-8.5) cm, apex obtuse or acutish, base unequally attached to petiole difference 0.2-0.5 cm, obliquely rounded, glabrous above, veins brown-villous below; pinnately veined, secondary veins 3-5 per side, originating from lower 3/4 or more of primary vein, anastomosing, impressed above, prominent below like tertiary veins, those loosely reticulate. Inflorescence erect; peduncle 1.5-2.5 cm long, villous; spike 2-4 cm long, green or yellow or "rosish", not apiculate; floral bracts glabrous, slightly cucullate. Infructescence occasionally pendent; fruits oblongoid, sunken, glabrous, stigmas 4, sessile.

Distribution

Guianas present, Southern America: Brazil North (Amapá present), Terr. Roraima present

The Guianas and Brazil (Terr. Roraima, Amapá); 51 collections studied (GU: 1; SU: 12; FG: 38).

Habit

Creeping herb or subshrub to .19

19. 001

Individuals Association

Saül area, Freiberg 216 de Granville et al. 11026 Suriname, Tumac Humac Mts., Mt. Telouakem, Acevedo 5939 Suriname, SE Suriname near Tapoc, Plotkin 610 Mori et al. 14909 Guyana, NW Distr., Morucca R., Kabura Backdam, van Andel 2430

Inflorescences

Inflorescence ;20

20. 004

Infructescences

Infructescence occasionally pendent;21

21. 005

Notes

I agree with Steyermark and Howard (in ) that Quebitea guianensis, nicely depicted in Aublet, belongs to Piper humistratum.

Petiole

Petiole , villous;22

22. 003

Stems

Stem villous often with white hairs.23

23. 002