sarcobasis

from The Century Dictionary.

• noun In botany, an indehiscent, many-celled superior fruit, containing but few seeds; a carcerule. The cells cohere to a common style, as about a common axis.

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

• noun (Bot.) A fruit consisting of many dry indehiscent cells, which contain but few seeds and cohere about a common style, as in the mallows.

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

• noun botany A fruit consisting of many dry indehiscent cells, which contain relatively few seeds and cohere about a common style, as in the mallows.