14 CHAEA. 



and referred by him to Ghara Meriani, A. Br., agrees fairly 

 closely with our Wealden form. 



Another species, Chora Siantoni,^ recently described by Knowl- 

 ton from the Upper Cretaceous Bear-River formation of North 

 America, agrees in the large number of almost horizontal ridges 

 with Chara KnowUoni, but differs in shape. 



Among English Tertiary species there is a distinct similarity 

 to a specimen of Chara medicaginula, figured by Lyell/ showing 

 the " nut " enclosed in. the " integument.'' The inner part 

 ("nut") has a close resemblance to the present species. 



The common recent species Chara fmtida, A. Br., possesses 

 oogonia not far removed in appearance from the Wealden type, 

 but, as Lyell points out in reference to Tertiary species, the fossil 

 oogonia are more globular than those of living British species. 



V. 1070a. Woodcut, p. 13, Fig. 1. 



Some of the oogonia are fairly well preserved and show the 

 characteristic markings clearly. Near Hastings. 



Presented ly P. Eufford, Esq^., 1885. 



v. 1070. Several oogonia scattered in the matrix. Near 

 Hastings. Presented ly P. Eufford, Esq., 1885. 



V. 2282. A cluster of oogonia closely crowded together, with 

 odd ones scattered about. The spherical form well shown, but 

 markings indistinct. Ecclesbourne. Rufford Coll. 



V. 2808. Several specimens in an argillaceous matrix, some 

 with the surface markings fairly clear. Ecclesbourne. 



Rvfford Coll. 



1 Bot. Gazette, toI. XTiii. p. 141. 



2 Trans. Geol. Soc. ser. ii. vol. ii. 1826, p. 90, pi. xiii. fig. 3. 



