Jones: Flora of Illinois 39 



Section 19. Gyninosperms 



1. Leaves (and cone-scales) spirally arranged, i.e., fascicled or alternate, never 

 opposite or whorled. 



2. Fruit berry-like, red, 1 -seeded, the seed nearly enclosed by the pulpy aril; 

 microsporophylls with 3-8 pollen-sacs; cotyledons 2; leaves linear, ever- 

 green 1 . Taxaceae 



2. Fruit a woody cone 



3. Cone-scales subtended by distinct bracts; microsporophylls with 2 

 pollen-sacs; branchlets not deciduous 2. Pinaceae 



3. Cone-scales without distinct bracts; microsporophylls with 3-8 pollen- 

 sacs; lateral branchlets (in our species) deciduous, the leaves light 

 green, flattened, 2-ranked; bark fibrous 3. Taxodiaceae 



1. Leaves and cone-scales opposite or whorled, the leaves small, scale-like or 

 subulate 4. Cupressaceae 



