CONIOPIEEIS. 



117 



linear pinnules. The Wealden ferns described under the names 

 C. Browniana (Dunk.) and C. Bunlceri (Schimp.) ' arc of this 

 type, also the specimens described by Yokoj-ama^ from Japan as 

 Pecopteris exilis and the specimen from Steierdorf named by 

 Andi-ae Cyatheites decurrens? 



Fig. \%.—(:oin 



i-fjutii (L. & H.). (No. V. 3677.) 



The form of the fertile segments, especially the cup - shaped 

 indusium, leads mc to include Couiopteris arguta in the Cyatheaceae. 

 In Text-lig. 16 the fi'rtilc segments are clearly shoi^'n, twice 

 natural size ; they suggest a comparison with Tliyrsopteris and 

 other members of the Cyatheacea;, and arc somewhat similar to 

 those of jSfephrolepis davallioides, Swartz.* The single fertile 

 segment, enlarged four times, shows the single Tlii/rsopteris-like 

 indusium with the small central umbo or receptacle. 



39,232. PI. XYII. Figs. 4 and 5. 



This specimen, of which a portion is represented in Fig. 4, 

 shows parts of nine pinufc attached to the rachis ; the longest 

 ■of which measures about 9 cm. The larger pinnules (Fig. 5) arc 



' Seward (94'), pi. vii. 

 2 Yokoyama (89), pi. i. 

 ' Andrae (.53), pi. vii. fig. 4. 

 » Christ (97), p. 290. 



