1·In western North America, most have been replaced by monocultures of fast-growing conifers.
在北美西部，大多数农业活动已被速生针叶树的单一栽培所取代。
2·Insects and even small invertebrates have been found preserved in the hardened resins of conifers and certain other trees.
人们在针叶树和某些其它树木的硬化树脂中发现了昆虫，甚至发现了小型无脊椎动物。
3·They were followed by the emergence of fish, reptiles, mammals, ferns, conifers and flowering plants.
在这之后出现了鱼类，爬行类，哺乳动物，蕨类，针叶树和开花的植物。
4·Southern beech, rimu and kahikatea (both tall conifers) once covered more than 80 percent of New Zealand, but the lowland forests are now less extensive.
南部山毛榉、新西兰陆均松和罗汉松（两者都是高大的针叶树）一度覆盖了新西兰八成的土地，不过现在低地林木的覆盖率已经减少。
5·The xylem of ferns and conifers contains only tracheids.
蕨类植物和针叶树的木质部仅含有管胞。