30
Dec
2008
Tahina J. Dransf. & Rakotoarinivo, gender. November. family Arecaceae
New Species | Liliopsida

Tahina J. Dransf. & Rakotoarinivo, gender. November. Arecaceae family is a new kind of northwestern Madagascar, with one species Tahina spectabilis.

On December 5, 2006, Bruno Leroy, resident and avid Madagascar palm, has posted a picture of an unidentified palm on www.palms.org the International Palm Society.

Tahina spectabilis palm is a 4.10 m high. Stem bulbous at the base, 50 cm in diameter, internoduri of 8-10 cm, nodes 1.5-3.5 cm. Marcescente Leaves on young specimens, cost-Palm, 12-18 on an adult crown, 80-100 x 52-58 cm, margins fibrous stalks 3,50-3,80 m long, deeply grooved, smooth edges, 10-12 cm diameter, Coast approx. 1.60 m long, lamina 3,80-4,10 m in diameter, divided in sections 110-122, tomentos fluffy white apical bifida. Blossom terminal, composed, 4 m long, 21-order arms above 2.50 m long, tubular bractei, 9-25 cm long. Fruit ellipsoidal toto obovoid, 25-30 x 20-22 mm, perianth persistent, green-yellow at maturity, 3-3.5 cm long, 2,3-2,7 cm wide. Seeds global 18-2,2 cm long, 1.4-1.8 cm wide.

Spectabilis was found only in Tahnia town Analalava, in northwestern island of Madagascar, where annual rainfall is estimated at 1600 mm, the local climate is dry and warm. The vegetation is dominated by species xerophytes and succulent, and Euphorbia, Aloe and Kalanchoe. It is a species sensitive to temperature variations, from June to September temperatures do not exceed 25 ° C and minimum 19 ° C, even a shift from temperatures of 25 ° C to 19 ° C too sharp may be critical and may inhibit colonization new areas.

Source The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 156, 79-91

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