nidulant

from The Century Dictionary.

• In botany, lying free in a cup-shaped or nest-like body, as the sporangia in the receptacle of plants of the genus Nidularia; also, lying loose in pulp, like the seeds of true berries. Lindley. Also nidulate.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Nestling, as a bird in its nest.
• adjective (Bot.) Lying loose in pulp or cotton within a berry or pericarp, as in a nest.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Nestling, as a bird in its nest.
• adjective botany Lying loose in pulp or cotton within a berry or pericarp.