Maryland Geological Survey 



437 



as the type. This he named Widdringtonites Ungeri including in its 

 synonymy Juniperites haccifera Unger, Thuia graminea Brongn,, and 

 Musettes Stolzii Sternberg. Three additional species were listed, one 

 from the Cretaceous, one from the Wealden, and one from the Lias. 

 His characterization of the genus was as follows: "Folia spiraliter 

 inserta, pleraque squamseformia adpressa. Strobilus globosus, valvatus." 

 There are perhaps a score of species referred to this genus at the 

 present time ranging in age from the Triassic to the Miocene. It has 



Fig. 15. — Sketch map of the world showing the segregation of the existing 

 Actinostrobinse and the Mesozoic occurrences of Frenelopsis and Widdring- 

 tonites. Circles indicate Frenelopsis and crosses indicate Widdringtonites. 



been commonly used for foliar specimens which resembled the living 

 forms but which lacked the certainty furnished by associated cones. 

 These are known, however, in a large number of species, many of which, 

 especially those of Tertiary age, are now referred directly to the genus 

 Widdringtonia. 



Although fruiting specimens of Widdringtonites ramosus (Font.) are 

 unknown, its immediate successor Widdringtonites Reichii (Ettings.) 

 Heer of the Earitan and Magothy formations has, in the European 



