zygosperm

from The Century Dictionary.

• noun In botany, same as zygo-spore.

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

• noun (Bot.) A spore formed by the union of the contents of two similar cells, either of the same or of distinct individual plants. Zygosperms are found in certain orders of algæ and fungi.

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

• noun botany A spore formed by the union of the contents of two similar cells, either of the same or of distinct individual plants. Zygosperms are found in certain orders of algæ and fungi.