
Flora of the Carolinas and Virginia, Working Draft of 1 January 1997 -- Gymnosperms
Alan S. Weakley.
The Nature Conservancy, Southeast Regional Office, Southern Conservation Science Department.
Copyright - Alan S. Weakley, 1998, 1999. All Rights Reserved.
GYMNOSPERMS
1. Leaves fan-shaped, dichotomously-veined, deciduous.....GINKGOACEAE
1. Leaves needle-like or scale-like, not dichotomously veined, evergreen (rarely deciduous).....2
2. Seeds borne singly in a soft fleshy to leathery aril.....TAXACEAE
2. Seeds 2-many borne in a woody or fleshy cone (sometimes resembling a rather hard berry).....3
3. Foliage leaves needle-like or scale-like, alternate, opposite, or whorled; cone scales valvate or imbricate (if imbricate, the leaves scale-like and opposite).....CUPRESSACEAE
3. Foliage leaves needle-like, alternate or fascicled; cone scales imbricate.....PINACEAE