Vol. 69.] FOSSIL FLORA OF THE PEMBROKESHIRE COALFIELD. 265 



Besides the species in the foregoing table, which were obtained 

 from the ' Millstone Grit ' between Tenby and Monkstone Point, the 

 following were also collected : — Calamites sp. from Ragwen Point, 

 Carmarthenshire (Basal Grit), and Cordaites principalis ? (Germar) 

 from Peepout "Wood, Eastern Cleddau (Millstone Grit Shales). 



Many specimens of branched roots were obtained from the Monk- 

 stone Point beds which might be placed in the genus Pinnularia, 

 were it not for the fact that they exhibit no trace of segmentation. 



(D) Descriptions of New Species. 



Annttlaria ingeks, sp. nov. (PI. XXVIII, fig. 1.) 



Horizon. — Pennant Grit(?). 



Locality. — Rickets Head Vein, Rickets Head. 



Diagnosis. — Stem 1 to 4 mm. wide, segmented, joints 7 to 

 20 mm. in length, finely striated, provided with whorls of leaves, 

 those of successive whorls being longer than the intervening inter- 

 nodes. Leaves linear, acuminate, somewhat curved, 14 to 34 mm. 

 long, 1 to 2 mm. wide in the basal half of leaf, uninerved, united 

 at their base, numbering up to twelve in a whorl, differing slightly 

 in length in the same whorl. 



The specimen here described shows the termination of a branch 

 bearing five whorls of leaves, which decrease rapidly in size towards 

 the end of the branch. As the leaves are distinctly united at 

 their bases, and the members of the same whorl differ somewhat 

 in length, it seems justifiable to place this plant in the genus 

 Annidaria. It appears to me to be a new species, and I have 

 therefore ventured to describe it under the name of A. ingens. 



It closely approaches, however, a plant described by Renault 

 under the name of Aster opliyUites fiexuosus. 1 It differs from this in 

 that the leaves of the oldest whorl are larger, and taper more 

 gradually at the apex. The stem, too, is stouter, and tapers much 

 more rapidly. It seems that the species A.flexuosus should be 

 transferred to the genus Annidaria, especially as the leaves are 

 described as being somewhat united at their bases. 



It differs from Annidaria radiata Brongn. in that the leaves are 

 linear, not approaching the lanceolate type of leaf as those of that 

 species do ; and from A. stellata (Schloth.) in that the leaves do not 

 become broader towards the apex, but taper gradually. 



Linopteeis major, sp. nov. (PI. XXVII, figs. 1 & 3.) 



Horizon. — Pennant Grit(?). 



Locality. — Rickets Head Vein, Rickets Head. 



Only isolated pinnules of this species were found. It appears to 

 be quite distinct from previously described species, hence I have 

 ventured to refer to it under the name of L. major. 



i Eenault (1888-90) p. 417 & pi. xlviii, fig. 2. 



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