JURASSIC FLORA OF DOFO.FAS COrXTY. OUF/l. 87 



SaGENOI'TKHIS (iKANDIKOI.lA F.mtlUllc n. SJ). 



r\. XV. Figs. 4, 5. 



A singlo imprint and its roverso of what nuist have Ixmmi a very larjic 

 leaf was ol)taine(l from locality No. 7. It is evidently a Sajienopteris 

 (luite different from either of the two above descril.(>d. rnfortimately 

 the fragment is too small to show the size and shape of the leaf. It is a 

 portion of the npper pai't of a leaf and shows the mar<rin on one side, a 

 portion of the midnerve, and some of the secondary nerves. The width 

 of the part pi'eserved is :-55 mm., indicating a leaf at least 7 cm. wide. 

 The midnerve extends well np in the leaf. The secondary nerves are 

 very strong, unusually remote, and fiexuous. The anastomosis is more 

 open and less frequent than in either S. Gappniiniia oi' S. paucifoUa. 



PI. XV, Fig. 4, gives the only fragment seen, and Mg. 5 an area drawn 

 to show the nervation. 



Family MARATTIACE^. 

 Genus DAN.EOPSIS Heer. 

 Dan^eopsis Storilsii Fontaine n. sp. 

 PI. XV, Figs. 6-9. 

 Three specimens of a very fine fertile fern were foimd by Mr. Storrs 

 at locality No. 14. It has been found nowhere else. The fructification 

 is so near that of the living Dana?a that it might be placed in that genus. 

 As, however, Heer's fossil genus Dana^opsis has a similar fructification, 

 I prefer to place it in that genus. All three specimens seem to have 

 belonged together, being separated in splitting the rock. The part fig- 

 ured has been mutilated, so as to separate what was once a continuous 

 fragment of an ultimate pinna extending from well down on it to near 

 its termination. The size of this indicates that the entire pinna must 

 have had a very considerable length, for the part preserved has a length 

 of 105 mm. This pinna evidently formed one of a number that were once 

 attached to a common rachis. The larger or normal pinnules are about 

 25 mm. long and 7 mm. wide. On the specimen figured they are distorted 

 and crowded together by pressure, causing them to appear- unduly narrow. 

 In form they are oblong-linear and they are mor(> or less falcate. The 

 tips are obtuse to subacute. They maintain the saiue width fi'om the 



