About 1/3 of alligator nests are destroyed by predators (mainly raccoons) or flooding. The average clutch size of an alligator nest is 38. For nests that survive predators and flooding, an estimated 24 live hatchlings will emerge. Only 10 alligator hatchlings will live to one year. Of these yearlings, 8 will become subadults (reach 4 feet in length).
Japanese fern tree is storybook pretty with a naturally rounded crown and unusual fern-like foliage. Its bushy growth creates dense shade and the globe-shaped top means no trimming required. This is a very elegant little tree, and it's one of the best small shade trees to tuck into any size yard.And it's ideal for the nit-picky homeowner who loves all things symmetrical. It's neither Japanese in origin nor a fern-though the long thin leaves growing out from stems have a fern-like look.The small size - 20 or 25 feet-makes the fern tree a good choice for a small front yard for house or mobile home.Or it can be used in conjunction with other plantings, because the foliage has a unique tropical look.nd it's ideal for the nit-picky homeowner who loves all things symmetrical. It's neither Japanese in origin nor a fern-though the long thin leaves growing out from stems have a fern-like look. The small size - 20 or 25 feet-makes the fern tree a good choice for a small front yard for house or mobile home.
In mosses, liverworts and hornworts, an unbranched sporophyte produces a single sporangium, which may be quite complex morphologically. Most non-vascular plants, as well as many lycophytes and most ferns, are homosporous (only one kind of spore is produced).ori may be covered by a structure called an indusium. Some ferns have their sporangia scattered along reduced leaf segments or along (or just in from) the margin of the leaf. Lycophytes, in contrast, bear their sporangia on adaxial surface (the upper side) of leaves or laterally on stems.