XLn] DICRANOPHYLLTJM 97 



broad and the median vein of the lamina is continued as a keel in 



the middle of the persistent base. The sporophylls have the form 



of foliage leaves and bear numerous 



ovules (fig. 672). This species is recorded 



from the coal-fields of the Loire, Com- 



mentry, Gard, Brive^ and elsewhere; it 



occurs also in the Coal Measures of 



PortugaP. 



The specimens described by Grand'- 

 Eury from Gard as D. tripartitum^, which 

 I had an opportunity of examining in the 

 Bcole des Mines, Paris, are not specific- 

 ally distinguishable from D. gallicum. 

 A large decorticated stem of D. gallicum ^'^f.^^- I)~vhyUuragal. 



° . . ^ Ileum. ( Alter Zeuler from 



m the Paris Collection recalls a decor- Renault; fnat. size.) 

 ticated stem of Lepidodendron. Some 



imperfect specimens described by White* from the Coal Measures 

 of Missouri as Dicranophyllum sp. are compared by him with 

 D. gallicum; one of them consists of a forked foliage-shoot with 

 short and repeatedly bifurcate leaves illustrating the superficial 

 resemblance between Dicranophyllum and Lepidodendron. An- 

 other specimen shows an irregularly branched leaf which might 

 equally well be referred to Trichopitys. 



Dicranophyllum lu.sitanicum (Heer). 



This species was first figured by Gomes^ as Cyperites ? sp. on 

 the ground of the similarity of the lamina to some fragments, 

 probably of Lepidodendroid leaves, described by Lindley and 

 Hutton* as Cyperites bicarinata and subsequently included by 

 Heer' in his genus Distrigophyllum. In a note to his account of 

 Mesozoic plants from Portugal Heer^ renames the plant Distrigo- 

 phyllum lusitanicum and compares it with Dicranophyllum gallicum 

 Grand'Eury. -De Lima^ recognised the true nature of the speci- 

 mens from the Stephanian of Portugal and published a full 



1 Zeiller (922) a. p. 96. '^ Lima, de (88) Pis. i., ra. 

 3 Grand'Eury (90) A. p. 335, PI. vi. figs. 12, 13. 



^ White (99) B. p. 272, PI. XLi. fig. 10; PI. Lxxra. fig. 1. 



' Gomes (65) p. 32, Pis. i., v. « Lindley and Hutton (32) A. PI. xliii. 



' Heer (76) A. p. 30. * Ibid- (81) i^. 11, footnote 1. 

 » Lima, de (88). 

 .S. IV 7 



