' 
FOSSIL PLANTS. 
385 
right of precedence, and should be preserved, it having been published, with 
description, in 1854, in the Journal of the Bost. Soc. Nat. Hist.; and in 1858, 
in the Report of the Geological Survey of Penna., with figures and description, 
while Prof. Herr’s species was published ten years later. 
/ 
Neuropteris vermicularis, Lesqx. 
PI. viX fig. 1, 2, 3. 
JO>1 uj' 7n^ 
1 
ICL^y - 
This species, described in the 4th vol. of the Geol. Report of Kentucky, p. ^ ^ 
434, has not before been figured. The frond is apparently tripinnate, with !&<<■ 
linear lanceolate somewhat obtuse pinnae, and alternate, oblong very obtuse ?>'JCj*-J■ ><■)-/"/ 'i {n&r-of 
leaflets, placed ata short distance from each other. They are slightly narrowed 
in the middle, turned upwards or a little scythe-shaped, and nearly round, and 
equal at the corners of the base. The terminal leaflet, fig. 3, is oblong obtuse, 
regularly and equally undulate-lobed on both sides. The nervation is particu¬ 
larly distinct, the medial nerve being short and thick, and the veinlets dis¬ 
tant, twice forking in curving to the borders, round, deeply marked, easily de¬ 
tached from the substance of the leaves, polished and thus appearing like pieces 
of rain worms. The main rachis is broad, straight, and irreg-ularly striate. 
The general appearance of this species is like that of the large forms of Neu¬ 
ropteris rarinervis, Bunb., but its nervation is for-different, the veinlets in this 
last species being flat, or looking as.if formed of two parallel lines. 
Found in the concretions of Mazon creek. 
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Neuropteris verbenjsfolia, Lesqx. 
PI. vi, fig. 5 and 6. 
Frond pinnate; rachis round, slightly and regularly striate; 
leaves alternate, varying in length from half an inch to four 
inches and a-half, proportionally broad, ovate lanceolate-obtuse 
in outline, truncate at the base, regularly sepralate-toothed on 
the borders, attached to the rachis by a broad pedicel, medial 
nerve narrow but distinct; veinlets distinct and distant, thin, 
moderately arched in ascending to the borders, forking twice, 
the last divisions descending to the point of the teeth. 
—49 
