tiles


Note:  Do not rely on this information. It is very old.

Apospory

Apospory, the omission of the sporophore (or non-sexual) stage in alternation of generations, which is at present only known to occur abnormally in some ferns, in which a rudimentary prothallus (q.v.), bearing archegonia, is borne on the back of the frond, in place of the usual sporangia.