Is it possible to merge two or more cells in an org-mode table like when using \multicolumn{}{}{} or \multirow{}{}{} in LaTeX?

Something like this does not work:

|------------+-----------+----------+----------+-------------| | | Singular | Plural | | +-----------+----------+----------+-------------| | | Masculine | Neuter | Feminine | All genders | |------------+-----------+----------+----------+-------------| | Nominative | *der* | *das* | *die* | *die* | | Accusative | *den* | *das* | *die* | *die* | | Dative | *dem* | *dem* | *der* | *denen* | | Genetive | *dessen* | *dessen* | *deren* | *deren* | |------------+-----------+----------+----------+-------------| 

Is there a way to construct such a table in org-mode?