EXPLANATION OF PLATES 
PLATE 20 
Pitcher’s coal mine, Henry co=nty, Missouri. U.S. N. M. Reg. 6024. 
Puate 21 
Fieurr 1.—Branch. U.S. N. M. Reg. 6028. 
Ficurr 2.—Fragment of larger branch, showing large oval scars. U.S. N. M. 
Reg. 6027. 2a. Detail of bolster, enlarged. 
Figure 3.—Impression of fragment of cortex. U.S. N. M. Reg. 6025. 
Figure 4.—Portion of left branch of figure 1, plate 22. U.S. N. M. Reg. 6029. 
‘Figure 5.—Impression of fragment of young tree, showing oval bosses. Collection 
of Dr J. H. Britts, Clinton, Missouri. 
All specimens from Pitcher’s coal mine, Henry county, Missouri. 
PLATE 22 
Figure 1.—Fragment of trunk at point of dichotomy, showing bolsters, leaf scars, 
oval bosses, and impression mace, at left, by fragment photo- 
graphed in figure 4, plate 21; the back side enlarged in plate 23. 
U.S. N. M. Reg. 5636. 
Figure 2.—Impression, with compressed Lepidodendroid bolsters. U. S. N. M. 
Reg. 6030. 
Ficurb 3.—Type of Lepidodendron cyclostigma Lx. U.S. N. M., Lacoe Coll., Reg. 
9002. Henry county, Missouri. 
PLATE 23 
Photographic enlargement of back of figure 4, plate 21, the impression of which 
is seen in the upper left of figure 1, plate 22. The un-retouched 
photograph shows the compressed and foreshortened Lepidoden- 
droid bolsters, the fracture surface of the leaf scars, the smaller oval 
bosses, the central depression, and the contained mammille. U.S. 
N. M. Reg. 6029. 
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