Taxon Details: Heliconia osaënsis Cufod.
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Family:
Heliconiaceae (Magnoliophyta)
Heliconiaceae (Magnoliophyta)
Scientific Name:
Heliconia osaënsis Cufod.
Heliconia osaënsis Cufod.
Primary Citation:
Arch. Bot. Sist. 9(3-4): 189. 1933
Arch. Bot. Sist. 9(3-4): 189. 1933
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Common Names:
platanilla
platanilla
Description:
Author : John Kress, Xavier Cornejo & Reinaldo Aguilar.
Description: Cannoid plants 1-3 m tall, shoots often dimorphic. Leaf sheaths ± glabrous or usually sparsely arachnoid; petioles of ultimate leaf up to ca. 6 cm long, usually very short and poorly defined, longer in lower leaves; blades 50-105 x 10-17 cm in ultimate leaves, to 150 x 25 cm in lower ones; glabrous adaxially, subglabrous to rather distinctly arachnoid on midrib abaxially. Peduncles 15-65(-80) cm long. Inflorescences distichous, 8-20(-30) cm long, with (3-)5-12 spathes, the spathe angle 30-55º; axis concolorous with spathes, sparsely to densely hirtellous or hirsute, hairs with long thick-walled basal portion or thick-walled throughout; spathes red or orange-scarlet, 7.9-18 x 0.7-1.2/5.8-12 x 0.9-1.3/5.9-8.1 x 0.8-1.1 cm, ± distinctly hirsute or hirtellous, trichomes like those of axis, the lower spathe sometimes greenish and somewhat widened distally, but not evidently appendaged; bracteoles glabrous or sparsely pilose proximally on the keel, 3-3.6 cm long; pedicels hirtellous or hirsute proximally, ca. 0.8 cm; ovary 3.3-4 x 3-3.6 mm, cream to orange, dark green distally, glabrous or sparsely hirsute; perianth straight or slightly uniform curved, 39-43 mm long, orange, shading into green or yellowish-green distally, sparsely hirsute or subarachnoid; staminode ± conduplicate, hood-shaped, 3.6-4.3(-7) x (1.9-)3.9-4.7 mm; style smooth, glabrous. Fruits 7-8 x 7.5-8 mm. Pyrenes 5.5-7 x 5-5.5 mm (Andersson, 1985).
Common names: Platanillo (Spanish).
Distribution: Nicaragua to Colombia from sea level to 400(-1000) m.
Ecology: In moist and wet forests. Collected mainly in man-made habitats such as road- and ditch-sides, plantations, etc. (Andersson, 1985).
Phenology: This species has been observed with flowers from Jan to May and from Jul to Nov; and with fruits in Jul, Sep and Oct.
Pollination: The flowers are pollinated by hummingbirds (Kress, 2003).
Dispersal: The fruits are eaten by birds.
Taxonomic notes: The morphologic intermediacy, reduced pollen fertility, and preference for man-made habitats indicate that Heliconia osaënsis is an imperfectly stabilized derivative of the hybrid between H. vaginalis X H. metallica (Andersson, 1985).
Conservation: Not recorded.
Uses: Cultivated as an ornamental.
Etymology: The epithet refers to the Osa Peninsula, the type locality of this species.
Author : John Kress, Xavier Cornejo & Reinaldo Aguilar.
Description: Cannoid plants 1-3 m tall, shoots often dimorphic. Leaf sheaths ± glabrous or usually sparsely arachnoid; petioles of ultimate leaf up to ca. 6 cm long, usually very short and poorly defined, longer in lower leaves; blades 50-105 x 10-17 cm in ultimate leaves, to 150 x 25 cm in lower ones; glabrous adaxially, subglabrous to rather distinctly arachnoid on midrib abaxially. Peduncles 15-65(-80) cm long. Inflorescences distichous, 8-20(-30) cm long, with (3-)5-12 spathes, the spathe angle 30-55º; axis concolorous with spathes, sparsely to densely hirtellous or hirsute, hairs with long thick-walled basal portion or thick-walled throughout; spathes red or orange-scarlet, 7.9-18 x 0.7-1.2/5.8-12 x 0.9-1.3/5.9-8.1 x 0.8-1.1 cm, ± distinctly hirsute or hirtellous, trichomes like those of axis, the lower spathe sometimes greenish and somewhat widened distally, but not evidently appendaged; bracteoles glabrous or sparsely pilose proximally on the keel, 3-3.6 cm long; pedicels hirtellous or hirsute proximally, ca. 0.8 cm; ovary 3.3-4 x 3-3.6 mm, cream to orange, dark green distally, glabrous or sparsely hirsute; perianth straight or slightly uniform curved, 39-43 mm long, orange, shading into green or yellowish-green distally, sparsely hirsute or subarachnoid; staminode ± conduplicate, hood-shaped, 3.6-4.3(-7) x (1.9-)3.9-4.7 mm; style smooth, glabrous. Fruits 7-8 x 7.5-8 mm. Pyrenes 5.5-7 x 5-5.5 mm (Andersson, 1985).
Common names: Platanillo (Spanish).
Distribution: Nicaragua to Colombia from sea level to 400(-1000) m.
Ecology: In moist and wet forests. Collected mainly in man-made habitats such as road- and ditch-sides, plantations, etc. (Andersson, 1985).
Phenology: This species has been observed with flowers from Jan to May and from Jul to Nov; and with fruits in Jul, Sep and Oct.
Pollination: The flowers are pollinated by hummingbirds (Kress, 2003).
Dispersal: The fruits are eaten by birds.
Taxonomic notes: The morphologic intermediacy, reduced pollen fertility, and preference for man-made habitats indicate that Heliconia osaënsis is an imperfectly stabilized derivative of the hybrid between H. vaginalis X H. metallica (Andersson, 1985).
Conservation: Not recorded.
Uses: Cultivated as an ornamental.
Etymology: The epithet refers to the Osa Peninsula, the type locality of this species.