The Collaborative International Dictionary of English v.0.48:

Stipula \Stip"u*la\, n.; pl. E. Stipulas, L. Stipulae. [L.,
   a stalk, stem.]
   1. (Bot.) A stipule.
      [1913 Webster]

   2. (Zool.) A newly sprouted feather.
      [1913 Webster] Stipulaceous