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SPECIMEN DESCRIPTION

This is a detailed botanical description of plant specimen(s) for this species measured and photographed.


ACCESSION #:
R3277

IDENTIFIED AS:
Costus stenophyllus

LOCATION:
La Gamba Biological Research Station, Costa Rica

SOURCE:
Collected locally, measured and photographed on site.

DETERMINATION:
By Dave Skinner, matched Maas' description very well and easilly recognized from thin stems, narrow foliage.

GENERAL:
Thin, bamboo-like stems, narrow leaves, red basal inflo with yellow flowers.

RHIZOME :


SHEATH:
Brown and tan striped at base, green where leaves begin, glabrous, thin and straight, 1.5 cm at base, to about 2 meters tall but often seen much shorter.

LIGULE:
Green, glabrous, less than 1 mm and actually ending BELOW the leaf petiole on the back side.

PETIOLE:
Green, glabrous, 3 mm long.

LEAVES:
Green, glabrous, very long and thin - 30 cm long by 3 cm wide.

INFLORESCENCE:
Basal leafless shoot, inflo including flower from apex totaled almost 20 cm long and about 3 cm wide.

BRACTS:
Red, glabrous, narrow yellow callus 1 cm long, bracts 4.8 cm long by 2 cm wide.

APPENDAGE:
NONE

BRACTEOLE:
Red, glabrous, boat shaped, 2.5 cm long by .4 cm wide.

CALYX:
Red, glabrous, 1.5 cm long by .8 cm wide.

COROLLA:
Yellow, glabrous, long and narrow, 8 cm long by 1 cm wide.

LABELLUM:
Yellow, tubular, incised under sides and apex curled outwards, 6 cm long by 1. cm wide.

STAMEN:
Yellow, exceeding labellum, thecae located near apex.

STIGMA:


OTHER:


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