Piper fanshawei

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Piper fanshawei

Content

<<<Petiole>Margins>Base>Differential distance

0.2 cm1
1. 003-003-002-001

<<Inflorescences>Peduncle>Length

1-1.5 cm long2
2. 004-002-001

<<Inflorescences>Spikes>Length

2 cm long3
3. 004-003-001

<<Petiole>Blade>Dimensions

10-14 x 3-4.5 cm4
4. 003-002-003

<<Petiole>Blade>Shape

elliptic(-oblong)5
5. 003-002-002

<<Petiole>Blade>Texture

not scabrous6
6. 003-002-001

<<Petiole>Margins>Apex

apex acuminate,7
7. 003-003-001

<<Petiole>Margins>Base

base equal or unequally attached to petiole difference , acute, glabrous;8
8. 003-003-002

<Fruits>Stigma

stigmas sessile.9
9. 005-001

<Habit>Height

to 2 m tall10
10. 001-001

<Inflorescences>Floral bracts

floral bracts dorsally fringed, crowded.11
11. 004-004

<Inflorescences>Growth form

erect12
12. 004-001

<Inflorescences>Peduncle

peduncle filiform, ;13
13. 004-002

<Inflorescences>Spikes

spike , apiculate;14
14. 004-003

<Petiole>Blade

blade , not glandular- but finely pellucid-dotted, , ;15
15. 003-002

<Petiole>Length

1-2 cm long16
16. 003-001

<Petiole>Margins

margin not ciliate,17
17. 003-003

<Petiole>Veins

pinnately veined, secondary veins 5-6 per side, originating from throughout primary vein, plane or inconspicuous above, slightly prominulous below, tertiary veins inconspicuous.18
18. 003-004

Description

Small shrub to 2 m tall. Stem glabrous. Petiole 1-2 cm long, glabrous, vaginate below middle; blade not scabrous, not glandular- but finely pellucid-dotted, elliptic(-oblong), 10-14 x 3-4.5 cm; margin not ciliate, apex acuminate, base equal or unequally attached to petiole difference 0.2 cm, acute, glabrous; pinnately veined, secondary veins 5-6 per side, originating from throughout primary vein, plane or inconspicuous above, slightly prominulous below, tertiary veins inconspicuous. Inflorescence erect; peduncle filiform, 1-1.5 cm long; spike 2 cm long, apiculate; floral bracts dorsally fringed, crowded. Fruits obovoid, puberulent at depressed apex, stigmas sessile.

Distribution

Guyana present
Only known from Guyana; ca. 9 collections studied (GU: 9).

Fruits

Fruits obovoid, puberulent at depressed apex,19
19. 005

Habit

Small shrub .20
20. 001

Individuals Association

Guyana, Pakaraima Mts., Kurupung-Membaru trail, Hoffman 2158 Guyana, Mt. Ayanganna, Hoffman 3246 Guyana, Cuyuni-Mazaruni region, Paruima, Clarke 5362 Guyana, Potaro-Siparuni region, Pakaraima Mts., Mt. Wokomong, Henkel 4420

Inflorescences

Inflorescence ;21
21. 004

Notes

Glabrous plants with pubescent fruits mark the species. It is difficult to identify collections without mature fruits.
Piper fanshawei can easily be mistaken for P. cuyunianum Steyerm. (1984: 391) from SW Venezuela, but differs in having pubescent fruits whereas P. cuyunianum has glabrous fruits.
Piper fanshawei differs from P. bolivaranum in the wider leaves: in P. fanshawei 3-4.5 cm wide, in P. bolivaranum 0.7-1.5 cm; P. bolivaranum also has glabrous — not pubescent — fruits.

Petiole

Petiole , glabrous, vaginate below middle;22
22. 003

Stems

Stem glabrous.23
23. 002