Spiculae

from The Collaborative International Dictionary of English v.0.48

Spicula \Spic"u*la\, n.; pl. {Spiculae}. [NL., dim. of L. spica
   a spike, ear.] (Bot.)
   (a) A little spike; a spikelet.
   (b) A pointed fleshy appendage.
       [1913 Webster]