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A believer in panspermy; one who rejects the theory of spontaneous generation; a biogenist.

Of or pertaining to panspermy; as, the panspermic hypothesis.

The doctrine of the widespread distribution of germs, from which under favorable circumstances bacteria, vibrios, etc., may develop.

Containing five seeds.

The albumen of a seed, especially that portion which is formed outside of the embryo sac. -- Per`i*sper"mic, a.

The stalk of a seed or ovule.

Containing many seeds; as, a polyspermous capsule or berry. Martyn.

Fullness of sperm, or seed; the passage of more than one spermatozoön into the vitellus in the impregnation of the ovum.

A minute parasite, usually the young of Gregarinæ, in the pseudonavicula stage.

Any seaweed with red spores.

Having four seeds. Tetraspermous plant, a plant which produces four seeds in each flower.

Rough-seeded. Gray.

Containing three seeds; three-seeded; as, a trispermous capsule.

The placenta.

Having yellow seeds.

One of the spermatic particles; spermatozoid.

e contents of two similar cells, either of the same or of distinct individual plants. Zygosperms are found in certain orders of algæ and fungi.

A species of Anthospermum, a shrub with evergreen leaves, which, when bruised, emit a fragrant odor.

n and other parts of the tropics, and also as a morbid secretion in the intestines of the sperm whale (Physeter macrocephalus), which is believed to be in all cases its true origin. In color it is white, ash-gray, yellow, or black, and often variegated like marble. The floating masses are sometimes from sixty to two hu…

e male reproductive apparatus in the lower, consisting of a cell or other cavity in which spermatozoids are produced; -- called also spermary. -- An`ther*id"i*al, a.