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Alsophila sechellarum (Mett.) R.M. Tryon

Spécimen

MNHN-P-P00589648
AFM (Afrique - Madagascar)

Taxonomie

Pteridophyta
Alsophila sechellarum (Mett.) R.M. Tryon

Origine

Mahé
Morne Seychellois NP
Morne Blanc
summit, on hiking trail about 100 m before viewpoint
fert
Mougal J.
2006-11-18
650
4° 39' 24.012'' S ; 55° 25' 59.988'' E
hauteur tronc = 1 m, diam. = 9 (12 incl. bases) cm -- fronde: LP= 80 cm, LL= 210 cm, Lar= 130 cm, 1L= 92 cm, LS= 18 cm, NP= 13, couleur face inf.: pale green, face sup.: shiny green, texture: subcoriaceous -- tronc: leaf bases persistent, base of trunk thickened by rather loose adventitious roots -- cicatrices: not visible -- pétiole: diameter 4 cm, lower face blackish brown, upper face green, with a light brown caducous squamulate tomentum, petiole bases shortly sigmoid with brown contiguous scales, one pair of aphlebioid pinnae 15 cm from the base (dried in older leaves), one row of white aerophores on either side, that are spaced by more than their length -- (abbrev.: LP=longueur pétiole, LL=longueur limbe, Lar=largeur limbe, 1L=distance base limbe jusqu'à la plus grande largeur, LS=distance entre la plus grande penne et la suivante, NP=nb. de paires de pennes, Janssen (2006) Fern Gaz. 17:283f.)

Historique de détermination

Janssen 2018
Janssen 2008 ÉPITYPE
et F. Rakotondrainibe, 2ème part sur 3