THE JURASSIC FLORA OF SUTHERLAND. 681 



of Phillips # from the Jurassic of Yorkshire, which is regarded as a synonym of 

 B. Lindltyana (Schimp.) and of Solenites furcata of Lindley and Hutton. The same 

 type is described by Saporta as Trichopitys Lindley una. ,t 



Czekanowskia, Heer. 



The genus Czekanowskia is usually placed in the Ginkgoales, but Professor Jeffrey \ 

 has recently founded a new genus, Araucariopitys, on petrified branches, characterised by 

 Araucarian features, which occur in association with fascicles of Czekanowskia leaves in 

 Cretaceous beds in Staten Island. It is possible, therefore, that Jeffrey may be correct 

 in forecasting the probable removal of Heer's genus from the Ginkgoales ; it is at least 

 certain that we have no convincing evidence in favour of the customary inclusion of 

 Czekanowskia in the Ginkgoales. 



Czekanowskia Murray ana (Lindley and Hutton). (PI. V. fig. 103.) 

 1834. Solenites Murrayana, Lindley and Hutton, Foss. Flor. Gt. Britain, vol. ii., pi. cxxi. 

 The imperfectly preserved specimen seen in fig. 103, PI. V., consists of a few ragged 

 filiform leaves identical with those of the widely distributed species Czekanowskia 

 Murrayana (L. & H.) and C. rigida Heer. These two names have been applied to 

 examples of the genus, which I believe to be indistinguishable, collected from Jurassic 

 rocks in various parts of the world. § 



Phosnicopsis Heer. 

 Phoenicopsis Gunni sp. nov. (PI. IX. photo. 35.) 



The generic name Phoenicopsis stands for parallel- veined leaves borne in clusters on 

 short shoots and enclosed at the base by small bracts. The author of the genus compared 

 it with Ginkgo, Baiera, and Czekanowskia and placed it with these genera in the 

 Taxinese, or, in modern parlance, in the Ginkgoales. Solms-Laubach,|| who examined 

 petrified specimens of Phoenicopsis leaves from Franz Josef Land, found that their 

 structure is consistent with a Gymnospermous affinity ; but we are still in ignorance of 

 the precise position of the genus. Salfeld H has recently instituted a new genus, 

 Phyllotenia, for specimens from the Corallian of Germany, which he includes in the 

 Ginkgoales because of the associated Ginkgo-like seeds. In his type-specimen, 

 P. longifolia, the leaves appear to be arranged spirally on a stout axis and not in 

 clusters, but the evidence he adduces suggests doubts as to the necessity for the 

 creation of an additional genus. Some of Heer's figures of Siberian Jurassic examples 

 of Phoenicopsis angustifolia * # show clusters of leaves attached to an axis and resemble 

 the fossil figured by Salfeld, though the correspondence may be only superficial. 



The specimen represented in the photograph shows portions of seven leaves con- 



* Seward (00), p. 266. t Saporta (84), pi, civ. t Jeffrey (07). § Seward (00), p. 279. 



|| Solms-Ladbach (04). 1" Salfeld (09), p. 26. ** Heer (78), pi. vii. 



