leptome

Nom masculin : Région des faisceaux libéro-ligneux analogue au phloème chez les mousses.

Notes : Ex: chez le Polytrichum commune.

Références : www.universalis.fr/dictionnaire/leptome/

Termes anglais : leptome

Notes de travail : a somewhat rudimentary phloem in cryptogams. The phloem analogue in Polytrichales is the leptome, made up of leptoids, they are similar to sieve cells. Hydrome and leptome are well-developed in Polytrichales, and also appear in a number of other bryophyte