Remarks upon Paleohillia, a problematic fossil plant. 
THEO. HOLM. 
WITH PLATE XVII. 
This genus has lately been established by Mr. F. H. 
Knowlton, and the description has been published in the 
Bulletin of the Torrey Botanical Club.! 
Lis always interesting to learn something about the struc- 
mits a closer €xamination, so that the tissues may be easily 
tbserved, we then meet with the difficulty of parallelizing the 
‘tructure with that of the plants known. It then depends 
‘pon the investigator himself whether he is able to point out 
e 
character of the fragment, whether it be a stem, a leaf, or a 
"oot, we do not feel justified in giving any further record of 
~ Specimen, except stating the fact that plants have oc- 
mi i the stratum, where the relics were found. We, 
a hing do not think it advisable to establish wip te ctor 
ad °F a genus upon such defective fragments, and we 
~ $pportunity to discuss the question in a rather gen- 
t comparative wav. 
Ments, 
if) ig 
The qnaenified 300 tim 
Sho : 
Whether thing so characteristic as to enable us to determine 
, he fragment really represents a stem. Considered 
22: 387-99, 1895. 
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