. Fossil plants : for students of botany and geology . Paleobotany. 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 distingu
. Fossil plants : for students of botany and geology . Paleobotany. 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 (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.
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