SPERMATOPHYTA n.
atophyta are heterosporous; fertilization of the egg cell is either through a pollen tube emitted by the microspore or (in a few gymnosperms) by spermatozoids. The phrase "flowering plants" is less distinctive than "seed plants," since the conifers, grasses, sedges, oaks, etc., do not produce flowers in the popular sen…
SPONGE n.
The extremity, or point, of a horseshoe, answering to the heel. Bath sponge, any one of several varieties of coarse commercial sponges, especially Spongia equina. -- Cup sponge, a toilet sponge growing in a cup-shaped form. -- Glass sponge. See Glass-sponge, in the Vocabulary. -- Glove sponge, a variety of commercia…