The Collaborative International Dictionary of English v.0.48:

Capsulate \Cap"su*late\, Capsulated \Cap"su*la`ted\, a.
   Inclosed in a capsule, or as in a chest or box; esp. (Botany)
   enclosed in a seed capsule; -- of seeds or spores.

   Syn: encapsulated.
        [1913 Webster]

WordNet (r) 3.0 (2006):

capsulate
    adj 1: used of seeds or spores that are enclosed in a capsule
           [syn: capsulate, capsulated]
    v 1: enclose in a capsule [syn: capsule, capsulate,
         capsulize, capsulise]