The cemetery lots shall be conveyed by certificates, signed by the mayor, countersigned by the clerk, under the seal of the city, specifying that the purchaser to whom the same is issued is the owner of the lot described therein by numbers, as laid down upon the official map or plat of such cemetery made by the city, for the purpose of interment, and such certificate shall vest in the purchaser, his or her heirs or assigns, a right in fee simple to such lots, for the sole purpose of interment, under the regulations of the board of aldermen. Such certificates shall be entitled to be recorded in the office of recorder of deeds of the proper county without further acknowledgment, and such description of lots shall be deemed and recognized as sufficient description thereof. The board of aldermen may limit the number of lots owned by the same person at the same time, and may prescribe rules for enclosing, adorning and erecting monuments, tombstones and ornaments on cemetery lots, and prohibit any improper adornment thereof; but no religious test shall be made to the ownership of the lots, or the burials had therein, or for the ornamentation of graves or lots.