Fossil gymnospermous plants of the carboniferous .
石炭纪的一个蕨类植物化石属。
Fossil gymnospermous trees or climbing plants from the devonian : seed ferns .
裸子植物化石树或攀缘植物，起源于泥盆纪；种子蕨。
Any of various mostly needle-leaved or scale-leaved , chiefly evergreen , cone-bearing gymnospermous trees or shrubs such as pines , spruces , and firs .
