164 MESOZOIC FLORAS OF UNITED STATES. 



dinate pinnae the large pinnae such as are given in PL XLI, Fig. 1. On 

 this fragment the ultimate pinnae of the form given in PL XLI, Fig. 1, 

 have been reduced to pinnules. These differ somewhat in shape from 

 the pinnules lower down. They are narrower in proportion to their 

 length. PL XLII, Fig. 3, shows one slightly restored and magnified. 

 They are all much mutilated and distorted, so that it is difficult to make 

 out their exact original shape. PL XLII, Fig. 2, shows an attached 

 pinnule enlarged two diameters. They were probably wider than they 

 now appear to be. The general character, however, of these pinnules is 

 similar to that of those lower down. The ultimate pinnae of this fragment 

 are quite remote. There are small pinnules, one at least, on the main 

 xachis between the points of attachment of the rachises of the ultimate 

 pinnae, but owing to the imperfect preservation they ai-e not distinctty 



shown. ..-■- 



Another rock fragment found by Mr. Woolfe contains two imprints 

 which probably belong to still other portions of the frond. One of these, 

 given in PL XLIII, Fig. 1, has its pinnules much distorted in shape. 

 Still they are narrower and probably were more acute than the pinnules 

 shown on PL XLII, Fig. 1. The fragment is probably a part of the com- 

 pound pinna nearer its termination than are any of the other specimens. 

 This fragment shows a small piece of a penultimate rachis, which carries 

 several fragments of ultimate pinnae, with a number of pinnules.- Pinnules 

 on this, too, are l^orne on the main rachis between the ultimate pinnae, 

 pi. XLIII, Fig. 2, shows several attached pinnules enlarged two diameters, 

 and Fig. 3 gives, slightly restored and enlarged, one of the pinnules of 

 this specimen. In contact with this, but not organically connected with 

 it, is the other imprint. This apparently comes from a position on the 

 frond lower than that of any specimen found. It is a fragment of a 

 penultimate pinna, which carries portions of several ultimate ones. These 

 show, with much mutilation and distortion, a number of pinnules that 

 have teeth similar to those on Bunker's plant. The pinnules, however, 

 are somewhat larger than those of that plant and show teeth on both 

 their margins. PL XLIII, Fig. 4, represents this imprint; Fig. 5 shows 

 a pinnule enlarged two diameters, and Fig. 6 gives a pinnule of it slightly 

 restored and enlarged. On the same rock fragment there is another 

 specimen of this plant, on a layer deeper in the stone and only partially 



