164 LEPrDOPHLOIOS. 



1874. Lepidodendron laricinum, Feistmantel, Vers. bohm. Kohlenab., pt. 5, 



p. 191, pi. xxxiii, rigs. 1-4 ; pi. xxxiv, figs. 1-4. 

 1878. L. acadianus, Dawson, Acadian Geol., 3rd ed., p. 489, text-fig. 171 



on p. 457. 

 1880. Zipidup/iloios laricinus, Zeiller, Veget. loss. terr. houill. France, p. 113, 



pi. clxxii, figs. 5, 6. 

 1882. L. laricinus, Renault (pars), Cour. botan. foss., vol. ii, p. 44, pi. ix, 



figs. 5, 7. 



1884. ? L. dilatatus, Lesquereux, Coal Flora, vol. iii, p. 781, pi. cv, fig. 2. 

 1886. L. laricinus, Zeiller, Flore foss. bass, bouill. Valenciennes, p. 471, 



pi. lxxii, figs. 1, 2. 



1885. L. acadianus, Dawson, Geol. Hist. Plants, p. 166, fig. 44 on p. 121. 



1890. L. laricinus, Renault, Flore loss. terr. bouill. Commentry, p. 514, 



pi. Ixi, fig. 1. 



1891. L. acadianus, Dawson, Geol. Nova Scotia (Acad. Geol., 4th Edit.), 



p. 456, fig. 171 on p. 457. 

 1893. L. laricinus, Kidston, Trans. Roy. Soc. Edinb., vol. xxxvii, pt. 3, 



p. 555, pi. i, figs. 4, ia ; pi. ii, figs. 8, 8a, 8b. 

 1895. L. laricinus, Zeiller, Compt. Rend., vol. cxxi, p. 962. 



X. laricinus, Zeiller, Bull. Soc. Geol. France, ser. in, vol. xxiii, 



p. 612, pi. ix, figs. 1-3, la, 2a. 

 1 898. L. laricinus, Potonie, Lehrb. Pflanzenpal., Lief, iii, p. 240, text-fig. 226. 

 L. laricinus, Zeiller, Mem. Soc. Geol. France, vol. viii, Mem. No. 21, 



p. 74. 

 1900. L. laricinus, Scott, Stud. Foss. Bot., p. 160. 



L. laricinus, Zeiller, Elem. Paleobot, p. 186, text-fig. 128. 

 1902. L. laricinus, Kidston, Proc. Yorks. Geol. & Polyt. Soc, vol. xiv, 



p. 34 8, pi. lvi, fig. 2. 

 1904. L. laricinus, Zalessky, Mem. Com. Geol., n.s., vol. xiii, pp. 30, 99, 



pi. v, fig. 9 ; pi. vi, figs. 8, 10 ; pi. vii, figs. 1, 2 ; pi. viii, 



figs. 7, 9. 



" Leaf -cushions elongated, imbricate, scarcely keeled, directed 

 downwards ; exposed portion of cushions rhomboidal or elongated 

 transversely ; lateral and upper angles acute, lower angle generally 

 rounded. Leaf-scar placed at the summit of the downward 

 directed leaf-cushion, or only slightly below the summit, rhom- 

 boidal, or transversely rhomboidal-elongate, lateral angles very 

 sharp and prominent, upper and lower angles slightly rounded ; 

 within the leaf-scar are three cicati'icules placed centrally, or 

 slightly above or below the centre, the two lateral punctiform, 

 the central punctiform or sub-triangular. When the leaf- scar is 

 placed slightly below the apex of the deflexed cushion two lines 

 run from its lateral angles, which meet the margin of the cushion 

 a short distance below the leaf-scar. The leaf-cushion freque tly 



