White, terra-cotta and blue pumpkins have joined the big, orange globes we carve into jack-o'-lanterns and display on the front porch. Wildly shaped and colored squash and gourd fruits also seem appropriate for spooky celebrations; they can be bulbous or deeply fissured, winged or elongated, warty or porcelain-smooth. The two basic types: summer squash, which are eaten when the fruits are immature and soft, and more decorative, hard-shelled winter squash also are grown while it's warm but are harvested when ripe and so named because they keep into the cooler months. 1 Pumpkin typically refers to round types, globular or somewhat tall or flattened and ranging in size from a baseball to a boulder. Turk's turban squash is a memorable 6-pounder that's round with a flattened base, three knobs on top and deep-orange skin with cream and green stripes. The largest fruit ever grown, an 1,800-pound 'Atlantic Giant' pumpkin is included in the maxima species, along with the ever-popular squat, bright orange-red 'Cinderella' pumpkin.