XLH] DICRANOPHYLLUM 97 



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



the middle of the persistent base. The sporophvlls 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 1 and elsewhere ; it 



occurs also in the Coal Measures of 



Portugal 2 . 



The specimens described by Grand' - 

 Eury from Gard as D. tripartitum 3 , which 

 I had an opportunity of examining in the 

 Ecole des Mines, Paris, are not specific- 

 ally distinguishable from D. gallic tun. 



T v ~ , i r T\ 77 FIG. 672. Dicranopkuttum qal- 



A large decorticated stem ot D. gallicum ,. /Aft z 11 f 

 in the Paris Collection recalls a decor- Renault; f nat. size.) 

 ticated stem of Lepidodendron. Some 



'imperfect specimens described by White 4 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 lusitanicum (Heer). 



This species was first figured by Gomes 5 as Cyperites ? sp. on 

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

 probably of Lepidodendroid leaves, described by Lindley and 

 Hutton 6 as Cyperites bicarinata and subsequently included by 

 Heer 7 in his genus Distrigophyllum. In a note to his account of 

 Mesozoic plants from Portugal Heer 8 renames the plant Distrigo- 

 phyllum lusitanicum and compares it with Dicranophyllum gallicum 

 Grand'Eury. De Lima 9 recognised the true nature of the speci- 

 mens from the Stephanian of Portugal and published a full 



1 Zeiller (92 2 ) A. p. 96. 2 Lima, de (88) Pis. i., m. 



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



4 White (99) B. p. 272, PI. XLI. fig. 10; PL Lxxra. fig. 1. 



5 Gomes (65) p. 32, Pis. i., v. 6 Lindley and Hutton (32) A. PI. XLJIL 

 7 Heer (76) A. p. 39. 8 Ibid. (81) p. 11, footnote 1. 



9 Lima, de (88). 



s. iv 7 



