124 



PLANTS. 



[LEP.~I.ES. 



at the outer end, and covering the apex 

 of the sporanges by a rhomboidal small 

 shield ; spores, triquetre on one side, 

 half globular on the other, like those of j 

 the Lycopods, homomorphous or dimor- 

 phous. Type L. ornatus. 



acuminatus, Lesquereux, 1858, (Lepido- 

 phyllum acuminatum,) Geo. Pa., vol.2, 

 p. 875, Coal Meas. 



aldrichi, Lesquereux, 1880, Coal Flora of 

 Pa., p. 441, Coal Meas. 



butleri, Lesquereux, 1884, Coal Flora of 

 Pa., p. 840, Coal Meas. 



connivens, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 442, Coal Meas. 



foliaceus, Lesquereux, 1870, (Lepidophyl- 

 lum foliaceum,) Geo. Sur. 111., vol. 4, p. 

 444, Coal Meas. 



globosus, Dawson, 1861, Can. Nat. and 

 Geo., vol. 6, p. 174, Devonian. 



goldenbergi, Schimper, 1872, 

 Trait6 de Paleontologie 

 Vegetale, vol. 2, p. 61, Coal 

 Meas. 

 hastatus, Lesquereux, 1858 



, , , 



(Lepidophyllum hastatum,) 

 Geo. 



FIG. 46. 



Sur. Pa., vol. 2, p. 876, 

 Coal Meas. 



incertus, Lesquereux, 1 880, 

 Coal Flora of Pa., p. 442, 

 . Coal Meas. 



Lenidostro- lacoei > Lesquereux, 1880, Coal 

 bu!hastats. Flora of Pa., p. 439, Coal 



Meas. 



lanceolatus, Brongniart, 1828, .'Lepi- 



dophyllum lanceolatum,) Prodr. d. 



Hist. d. Veg. Foss., p. 87, and Coal 



Flora of Pa., p. 436, Coal Meas. 



lancifolius, Leequereux, 1870, Geo. Sur. 



111., vol. 4, p. 442, Coal Meas. 

 latus, Lesquereux, 1884, Coal Flora of Pa., 



p. 841, Coal Meas. 



longifolius, Dawson, 1863, Can. Nat. and 

 Geo., vol. 8, and Acad. Geol. p. 489, 

 Coal Meas. 

 mancfieldi, Lesquereux, 1880, Coal Flora 



of Pa., p. 444, Coal Meas. 

 iniraliilis, Newberry, 1873, (Polysporia 

 mirabilis,) Ohio Pal., vol. 1, p. 362, 

 Low. Coal Meas. 



oblongifolius, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 441, Coal Meas. 



FIG. 47. Lepidostrobus 01 natus. Cone % size. 



ornatus, Parkinson, 1811, Organic Re- 

 mains, vol. 1, pi. 9, fig. 1, and Coal 

 Flora of Pa., p. 440, Coal Meas. 



ovatifolius. Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 441, Coal Meas. 



pinaster, Lindley & Button, 1837, Foss. 

 Flora, vol. 3, p. 129, Coal Meas. 



prselongus, Lesquereux, 1880, Coal Flora 

 of Pa., p. 433, Coal Meas. 



princeps, Lesquereux, 1866, Geo. Sur. 

 111., vol. 2. p. 455, Coal Meas. 



quadratus, Lesquereux, 1880, Coal Flora 

 of Pa., p. 444, Coal Meas. 



richardsoni, Dawson, 1861, Can. Nat. and 

 Geo., vol. 6, p. 174, Devonian. 



salisburyi, Lesquereux, 1880, Coal Flora 

 of Pa., p. 443, Coal Meas. 



spectabilis, Lesquereux, 1880, Coal Flora 

 of Pa., p. 435, Coal Meas. 



squainosus, Dawson, 1863, Can. Nat. and 

 Geo., vol. 8, and Acad. Geol., p. 489, 

 Coal Meas. 



stachioides, see Asterophyllites stachioides. 



trigonolepis, Bunbury, 1847, Quar. Jour. 

 Geo. Soc., vol. 3, p. 432, Coal Meas. 



truncatus, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 442, Coal Meas. 



variabilis, Lindley & Hutton, 1833, Foss. 

 Flora, vol. 1, p. 31, and Coal Flora of 

 Pa., p. 434, Coal Meas. 

 LEPIDOXYLON, Lesquereux, 1878, Proc. Am. 

 Phil. Soc., p. 334, and Coal Flora of 

 Pa., p. 557. [Ety. iepis, scale ; xylon, 

 wood.] Stems large,tapering to a point ; 

 bark thin, covered with leafy scales ; 

 leaves variable, sublinear, narrowed or 

 enlarged to the point of attachment, 

 forking upward in two or more laci- 

 nise; nervation distinct with the glass; 

 primary nerves parallel, buried in the 

 epidermis, inflated or half round ; inter- 

 mediate veinlets thin, visible on the 

 decorticated face. Type L. anomaluui. 



anomalum, Lesquereux, 1880, Coal Flora 



of Pa., p. 557, Coal meas. 

 LEPTOPHI/EUM, Dawsou, 1862, Quar. Jour. 

 Qeo. Soc., vol. 18, p. 316. [Ety. lepios, 

 slender; phlois, the bark of a tree.] 

 Stem covered with continuous rhombic 

 areoles, each with a single small scar a 

 little above its center, and above this a 

 very slight furrow ; decorticated stems, 

 with spiral punctiform scars in slight 

 depressions; bark thin, pith cylinder 

 very large, with transverse markings 

 of the character of Sternbergia. Type 

 L. rhombicum. 



rhombicum, Dawson, 1862, Quar. Jour. 



Geo. Soc., vol. 18, p. 316, Devonian. 

 LESCUROPTERIS, Schimper, 1869, Pla;ontolo- 

 gie Vegetale, vol. 1, p. 465. [Ety. proper 

 name; pteris, a fern.] Fronds large, bi 



FIG. 48. Lescuropteris adiantites. 



tripinnate ; rachis broad; foliate; pin- 

 nae pinnatifid, close, oblique; divisions 

 ovate, acute, inclined outside, connate 



