![Lepidodendron, mild of leaf cushions. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4237-L6-1-300x200.jpg)
L6-1: Lepidodendron, mold of leaf cushions. Age Pennsylvanian.
![Lepidodendron, leaf scars. From Pella, Iowa. Age Pennsylcanian](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4238-L6-2-300x200.jpg)
L6-2: Lepidodendron, leaf scars. From Pella, Iowa. Age Pennsylcanian
![Lepidodendron leaf scars. Note leaf scars with vascular bundle, parichnos scar, ligule scar.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4239-L6-3-300x200.jpg)
L6-3: Lepidodendron leaf scars. Note leaf scars with vascular bundle, parichnos scar, ligule scar.
![Lepidodendron leaf scars. Note leaf scars with vascular bundle, parichnos scar, ligule scar.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4240-L6-3-300x200.jpg)
L6-3: Lepidodendron leaf scars. Note leaf scars with vascular bundle, parichnos scar, ligule scar.
![Lepidodendron leaf cushions (mold)](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4241-L6-4-300x200.jpg)
L6-4: Lepidodendron leaf cushions (mold)
![Lepidodendron leaf bases from Pella, Iowa. Age Pennsylvanian](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4242-L6-5-300x200.jpg)
L6-5: Lepidodendron leaf bases from Pella, Iowa. Age Pennsylvanian
![Lepidodendron with leaf scars.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4245-L6-6-300x200.jpg)
L6-6: Lepidodendron with leaf scars.
![Lepidodendron, leaf scars. From Southern Illinois. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4243-L6-7-300x200.jpg)
L6-7: Lepidodendron, leaf scars. From Southern Illinois. Age Pennsylvanian.
![Lepidodendron from Southern Illinois. Age Pensylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4244-L6-8-300x200.jpg)
L6-8: Lepidodendron from Southern Illinois. Age Pensylvanian.
![Lepidodendron, leaf scars.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4246-L6-9-300x200.jpg)
L6-9: Lepidodendron, leaf scars.
![Lepidodendron, leaf scars. From Pella, Iowa. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4248-L6-10-300x200.jpg)
L6-10: Lepidodendron, leaf scars. From Pella, Iowa. Age Pennsylvanian.
![Lepidodendron stem with leaves.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4250-L6-13-300x200.jpg)
L6-13: Lepidodendron stem with leaves.
![Lepidodendron from Lewis Creek, Kentucky. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4254-L6-15-300x200.jpg)
L6-16: Lepidodendron from Lewis Creek, Kentucky. Age Pennsylvanian.
![Lepidodendron, twigs with leaves. From Lewis Creek, Kentucky. Lower Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4256-L6-17-300x200.jpg)
Lepidodendron, twigs with leaves. From Lewis Creek, Kentucky. Lower Pennsylvanian.
![Lepidodendron.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4259-L6-17-300x200.jpg)
Lepidodendron.
![Lepidodendron, stem with leaves, the leaves are attached to branches. From Bohemia. Age Carboniferous.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4260-L6-18-300x200.jpg)
L6-18: Lepidodendron, stem with leaves, the leaves are attached to branches. From Bohemia. Age Carboniferous.
![Lepidodendron, stem with leaves that are attached to branches.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4262-L6-19-300x200.jpg)
L6-19: Lepidodendron, stem with leaves that are attached to branches.
![Lepidodendron cross section of stem.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4265-L6-20-300x200.jpg)
L6-20: Lepidodendron cross section of stem.
![Lepidodendron, cross section of young stem. From Lewis Creek, Kentucky. Early Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4268-L6-21-300x200.jpg)
L6-21: Lepidodendron, cross section of young stem. From Lewis Creek, Kentucky. Early Pennsylvanian.
![Lepidodendron, cross section of stem. From England, age Late Corboniferous](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4269-L6-22-300x200.jpg)
L6-22: Lepidodendron, cross section of stem. From England, age Late Corboniferous
![Lepidodendron twigs cross section. From West Mineral, Kansas.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4270-L6-23-300x200.jpg)
L6-23: Lepidodendron twigs cross section. From West Mineral, Kansas.
![Lepidodendron longitudinal and cross section.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4271-L6-31-300x200.jpg)
L6-31: Lepidodendron wood longitudinal and cross section.
![Lepidophylloides leaves from Mazon Creek, Illinois. Age Middle Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4273-L6-36-300x200.jpg)
L6-37: Lepidophylloides leaves from Mazon Creek, Illinois. Age Middle Pennsylvanian.
![Lepidophylloides leaves from Mazon Creek, Illinois. Age Middle Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4274-L6-37-300x200.jpg)
L6-38: Lepidophylloides leaves from Mazon Creek, Illinois. Age Middle Pennsylvanian.
![Stigmaria ficoides from Nova Scotia, age Carboniferous. Coalified compression.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4275-L6-39-300x200.jpg)
L6-39: Stigmaria ficoides from Nova Scotia, age Carboniferous. Coalified compression.
![Stigmaria ficoides. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2016/02/PJC_6151-300x199.jpg)
Stigmaria ficoides.
Age Pennsylvanian.
![Stigmaria rootlets in x.s. Peel from coal ball. From West Mineral, KS.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2016/02/PJC_6154-300x199.jpg)
L6-70: Stigmaria rootlets in x.s.
Peel from coal ball. From West Mineral, KS.
![Stigmaria ficoides (rootlets).](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2016/02/PJC_6156-300x199.jpg)
Stigmaria ficoides (rootlets).
![Lepidophylloides, ligule in pit, cross section of branch with leaves.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4276-L6-40-300x200.jpg)
L6-40: Lepidophylloides, ligule in pit, cross section of branch with leaves.
![Lepidophylloides with twigs and cross section of leaves.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4278-L6-41-300x200.jpg)
L6-41: Lepidophylloides with twigs and cross section of leaves.
![Lepidophylloides, twigs and cross section of leaves.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4287-L6-41-300x200.jpg)
L6-41: Lepidophylloides, twigs and cross section of leaves.
![Lepidostrobus from Mazon Creek, Illinois. Age Pennsylvanian.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4290-L6-42-300x200.jpg)
L6-42: Lepidostrobus from Mazon Creek, Illinois. Age Pennsylvanian.
![Lepidostrobus from Lewis Creek, Kentucky. Lower Pennsylvanian. Compression.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4291-L6-46-300x200.jpg)
L6-46: Lepidostrobus from Lewis Creek, Kentucky. Lower Pennsylvanian. Compression.
![Lepidostrobus pulvinatus (Lepidocarpon) Cross section of cone with microsporophylls, micro sporangia and microspores.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4294-L6-47-300x200.jpg)
L6-47: Lepidostrobus pulvinatus (Lepidocarpon) Cross section of cone with microsporophylls, micro sporangia and microspores.
![Lepidostrobus pulvinatus (Lepidocarpon) Cross section of cone with microsporophylls, micro sporangia and microspores.](https://grad.biology.ualberta.ca/paleobotany/wp-content/uploads/sites/57/2015/12/IMG_4300-L6-47-300x200.jpg)
L6-46: Lepidostrobus pulvinatus (Lepidocarpon) Cross section of cone with microsporophylls, micro sporangia and microspores.