The Collaborative International Dictionary of English v.0.48:

Sarcobasis \Sar*cob"a*sis\, n.; pl. Sarcobases. [NL., fr. Gr.
   sa`rx, sa`rkos, flesh + ? base.] (Bot.)
   A fruit consisting of many dry indehiscent cells, which
   contain but few seeds and cohere about a common style, as in
   the mallows.
   [1913 Webster]