The American Geologist. •lanuary. looi. 
Bedding plane of coal-seam (bituminous). Loc. What 
Cheer, Iowa. 
Fig. 2. Tri-radiate macrospores ? with leafy expansions apparently 
torn and fragmental. Color, pale brown. Same horizon and 
same locality as specimen fig. i. (See "Triletes," Kidston, in 
Trans. Roy. Soc. of Edin. ; vol. 35, p. 63.) 
Fig. 3. A pear-shaped seed — exterior view ; seems to be made of 
coal. Same horizon and locality as specimens fig. i and 2. 
(Similar or very similar forms had been noticed by me in 
the "Pittsburg" coal bed, Pa., and in the "Barnsley Thick" 
coal in Yorkshire, England.) 
Fig. 4. A flattened fruit or seed? Cardiocarpon consisting of coaly 
material. 
Horizon and locality same as the above. 
Fig. 5. A three-cornered seed or pod, fossilized it would seem when 
about to open along tri-radiate lines. Composed of lime etc., 
and found in a concretion of that material with pyrites, in the 
coal bed of What Cheer, Keokuk county, Iowa. 
Fig. 6. Nearly horizontal section of what appears to be a pod filled 
with seeds. Composed of black carbonaceous material and 
pyrite. Horizon. Coal bed. Loc. What Cheer, Iowa. (Dis- 
covered by grinding and polishing the material.) 
Fig. 7. Horizontal view of a little patch of moss-like filaments 
(blackish in color, and embedded in pyrite), enclosing brown 
? seeds. Locality, the coal bed at What Cheer, Iowa. 
Fig. 8. Horizontal section or view of part of some plant, in or upon 
the parts of which are seen little, bright, yellowish, red-coated 
seeds, having pearly white nuclei more or less visible. This 
and the form illustrated in fig. 7, may be the same plant. 
Found in a lime and pyrite concretion in the coal at What 
Cheer, Iowa. 
Fig. 9 Horizontal section (developed by grinding and polishing a 
fragment of a pyrites nodule taken out of the coal at What 
Cheer, Iowa) of a seed-bearing inflorescence, a. shows a 
seed case or ovule (or epicarp?), to all appearances in place 
in this fructification. The specimen seems to be bractiform 
in character. The material of the epicarp? is of a brown 
color. Other points of interest in this specimen may be 
noted by examining the drawing. 
Fig. ID. Enlarged view, in perspective, of what seems to be- a 
horned or four-cornered seed vessel, perhaps sifnilar to the 
one seen at a in fig. 9. This specimen was not found in situ 
but lying near others, as though scattered, but in the same 
mineralized concretion as for fig. 9. a is the testa or pericarp, 
brown in color, and broken away around the seed ; b, mem- 
brane, copper colored, with surface showing excrescences, 
broken and partially removed to show the nucleus or seed : 
c. elegantly crinkled or crimped surface of the seed itself. 
