Yes, cassaurina is sometimes called by many names including Australian Pine or Beach Pine...and it always grows right on the edge of the beach where the beach meets the forest. Although the tree can be pretty gnarly, if you find an older one with a crotch mid-way up it, you should be able to find perfectly straight and twig-free limbs growing vertically out of it. That is always the way I collect it now in Taiwan. The tree is too dense to lug around off the beach after cutting without a group of friends, so limbs are sometimes preferable. The wood does split insanely easily if you want to stave out a larger trunk then and there. The wood is 100% tension safe within normal designs, but it may have some small compression issues. Seal it up ASAP and keep it in a cool area to season or it will check like crazy. You can find jessamine wood on hills with slopes facing the rising sun. You will smell it long before you see it and it often has small white flowers or small citrus-like fruit growing on it. Hell of a good bow wood. Podacarpus is often called "japanese yew" and is a highly usable wood that is easily identifiable. Guava is everywhere. Most people prefer "strawberry guava" to yellow guava as a bow wood. Post pics if you score anything.