FOREST OF WYRE AND TITTERSTONE CLEE HILL COAL FIELDS. 



1047 



form of the whorls of sporophylls, Cingularia Cantrilli is at once distinguished 

 from Cingularia typica by the entire absence of whorls of sterile bracts in 

 the cone. 



Some might perhaps think that the absence of sterile bract whorls in the cone is 

 of sufficient importance for the exclusion of our specimen from the genus Cingularia, 

 but the entire agreement in the structure of the sporophylls and the position of the 

 sporangia, with those of Cingularia, altogether outweighs in importance the minor 

 fact that the cones do not possess sterile whorls. 



If a precedent for this course were wanted, the case of Sphenophyllum fertile Scott 



Text-fig. 5. — Cingularia Cantrilli Kidston. 



Diagrammatic representation of a whorl of sporophylls seen from below, a, Ribbed and striated 

 axis, b, United bases of sporophylls forming a saucer-shaped collar round axis, c, Level at 

 which the sporophylls become free, d, Cleft dividing the sporophylls into two lappets, 

 e, e, limited below by furrows/. The scars c', d of the outer concentric circle, and g, the 

 scars of the inner concentric circle of sporangia. The four sporangia of a sporophyll, h' , h' and 

 h", h". Knee caused by the upward bending of the sporophylls, i. 



may be mentioned,* where no sterile appendages occur in the fructification, but which 

 are present in the other described cones of the genus. 



I have much pleasure in naming this species of Cingularia after Mr T. Crosbee 

 Cantrill, B.Sc, to whom I am so much indebted for my knowledge of the Wyre 

 Forest geology. 



Locality. — Highley Colliery, Highley, Shropshire. 



Horizon. — Shales associated with Brooch Coal. Westphalian Series. Collected 

 by Mr J. Pringle. (Pr. 1260, fig. 3 ; Pr. 1256, 1257, forming fig. 4 ; and Pr. 1258, 

 1259, fig. 5.) 



* Scott, "On a New Type of Sphenophyllaceous Cone (Sphenophyllum fertile) horn the Lower Coal Measures," 

 Phil. Trans., ser. B, vol. cxcviii, p. 17, pla. iii-v, 1905. 



TRANS. ROY. SOC. EDIN, VOL. LI, PART IV (NO. 27). 148 



