MESOZOIC PLANTS OF NOETH CABOLINA. 115 



the midrib. This plant differs from the Zamites graminoides of Professor Buubury 

 in the length and width of the leaves, being shorter and not as wide. The longest are 

 about 1£ inches long, and have about 6 delicate nerves. The leaves are rather less 

 than one-tenth of an inch wide." 



Emmons does not give the locality and horizon of this plant. I do not 



understand the dimensions given. The longest leaflets of the figure are 1J 



inches (= 3 centimeters) long, and it is plain that these are mere fragments 



of leaflets. However, the length would depend upon the part of the leaf 



which yielded the specimen. The Zamites graminoides of Bunbury above 



referred to is probably Zamites gramineus, which Bunbury, in his paper on 



the fossil plants from Eastern Virginia, doubtfully considers a new species, 



being not sure that it is different from Rogers's Zamites dbtusifolius. From 



Bunbury's description of Z. gramineus, it differs from Rogers's plant only in 



having the leaves longer and more slender. There is no doubt that the 



plant in question from North Carolina, and those of Bunbury and Rogers, 



are parts of the polymorphous Ctenophyllum Braunianum, var. a. The 



North Carolina specimen seems to be from the upper part of the plant, and 



hence the obliquity of the insertion of the leaflets. 



Strangerites obliquus. 



Plate LIV, Fig. 8. 



Emmons's " Am. Geol.," p. 121, fig. 89. 



"Frond robust, nerves or side veins very numerous, and go off at an acute 

 angle, and soon form an obtuse one with it, dividing once or twice, once near the mid- 

 rib and again near the margin. The average breadth of the frond is three-fourths of 

 an inch, and its margin is undulating." 



The figure plainly shows that the margin is not preserved, the undu- 

 lation being due to the peculiar mode of laceration. The singular nerves, 

 some of which stop short in the leaf before reaching the margin, attain this 

 appearance, no doubt, from the fact that Emmons studied the nervation 

 only in a single imperfect specimen. The figures of a good many of Em- 

 mons's plants seem to show that the nervation and other minuter details 

 were obtained from single specimens, of which, apparently, fac-similes were 

 given, imperfections and all. The nerves of this plant in many cases, if 

 continued in the course they pursued when they suddenly stopped short, 

 would anastomose with their neighbors. This fact, with the open character 



