118 



PLANTS. 



[BOP. mc 



mammillanum, Miller & Dyer, 1878, Cont. 

 to Pal., No. 2, p. 2, Hud. Riv. Gr. 



Fio. 84.— Dystactophycns maramtllanum. 



Eophytox, Torell, 1868, Bidr. t. Sparagm. 

 geogn. och. paleont., p. 36. [Ety. eos, 

 dawn ; phyton,& plant.] Slender, cylin- 

 drical, reed-like fucoids, longitudinally 

 striated. Type E. linnseanum. 

 explanatuni, Dawson, 1870, Can. Nat. and 



Geol. .Low. Arenig rocks, 

 jukesi, Billings, 1874, Pal. Foss., vol. 2, p. 



65, Up. Taconic. 

 linnieanum (?), Torell, 1868, Bidr. t. Spa- 

 ragm. geogn. och. paleont, p. 36, Up. 

 Taconic. 

 Equisetites, Sternberg, 1833, Vers. Darst. 

 Flora der Vorwelt, vol. 2, p. 43. [Ety. 

 equus, a horse; seta, a hair or bristle ; 

 in allusion to the resemblance to a 

 horse-tail.] Arborescent; stems articu- 

 late ; articulations surrounded with 

 costate sheaths, dentate on the border. 

 Type E. gigantea. 



columnaris, 

 Brongniart, 

 1828, (E.|ui- 

 setum colum- 

 nare,) Hist.Veg. 

 Foss.,t.l,p. 115, 

 Coal MOM, 

 cartas, Dawson, 

 1863, Syn. Carb. 

 Flora in Can. 

 Nat., vol.8, and 

 Acad. Geol., p. 

 h:;, Coal Meas. 

 elongatus, Fon- 

 taine & White, 1880, Perm, or Up. Carb. 

 Flora, p. 33, Coal Meas. or Permian, 

 gracilis. Lesquereux, 1884, Coal Flora of 



Pa., p. 729, Coal Meas. 

 macrodonlus, Wood, 1860, Proc. Acad. 



Nat. Sci. Not satisfactorily defined, 

 occidentalis, Lesquereux, 1870, Geo. Sur. 



111., vol. 4, p. 425, Coal Meas. 

 8tellifolius, Harlan, 1835, (Equisetum 

 stellifolium,) Trans. Geo. Soc. Pa., vol. 

 1, p. 261, Coal Meas. Syn. for Annula- 

 ria longifolia? 

 striatus, Fontaine & White, 1880, Perm, 

 or Up. Carb. Flora, p. 34, Coal Meas. 

 or Permian. 

 irrigfitanus, see Echinocaris wrightana. 

 Equisetum, see Equisetites. 



Fig. 3o.— Equisetites 

 curtus. 



columnare, see Equisetites columnaris. 

 stellifolium, see Equisetites stellifolius. 

 Ekemoptekis, Schimper, 1869, Trait* de 



Palaeontologie Vegetale, vol. 1, p. 4 Hi. 



[Ety. erernos, isolated ; pteris, fern.] 



Upper part of fronds 



dichotomoub; pinna? open 



or oblique, irregularly 



pinnatifid; laciniue long, 



obovate or wedge- for in, 



the lower ones deeply 



cut; the lateral veins enter 



the lobes in acute angles 



of divergence from the 



midrib, and passing up to 



the borders are flabellate, 



dichotomous, parallel, and 



close. Type E. artemisii- 



folia. 

 art en i i si if. .Ha. Sternberg, 



1824, (Sphenopteris arte- 



misisefoha,) Vers. Darst. 



Flora der Vorwelt, p. 14, 



and Coal Flora of Pa., p. 



293, Coal Meas. 

 cheathami, Lesquereux, 



1884, Coal Flora of Pa., p. 



770, Coal Meas. 

 crenttlata, Lesquereux, 1876, Geo. Rep. 



of Alabama, p. 75, and Coal Flora of 



l'a., p. 292, Coal Meas. 

 difsecta, Lesquereux, 1876, Geo. Rep. of 



Alabama, p. 75, and Coal Flora of Pa., 



p. 298, Coal Meas. 

 elegans, Ettingshausen, 1852, (Asplenites 



elegans,) Die Steinkohlen flora v. Stra- 



doniti in Bohmen, p. 15. and Coal 



Flora of Pa., p. 294, Coal Meas. 

 flexuosa, Lesquereux, 1876, Geo. Rep. of 



Alabama, p. 75, and Coal Flora of Pa., 



p. 29:;, Coal Meas. 

 inarginata, Andrews, 1875, Ohio Pal., vol. 



2, p. 422, Coal Meas. 

 microphylla, Lesquereux, 1880, Coal 



Flora of Pa., p. 296, Coal Meas. 

 missouriensis, Lesquereux, 1880, Coal 



Flora of Pa., p. 295, Coal Meas. 

 Ficoidites scabrosus, Hildreth, 1837, Am. 



Jour. Sci. and Arts, vol. 81, p. 30, Low. 



Coal Meas. Not recognized, but prob- 

 ably a Sigillaria. 

 Filicites, Schlotheim, 1820, Nachtr. zur 



Petref. It was used for all fossil ferns, 



and hence is not of generic value. 

 acuminatus, see Neuropteris acuminata. 

 aquilinus, see Alethopteris aquilina. 

 arborescens, see Pecopteris arborescens. 

 crispus, see Cyclopteris crispa. 

 gracilis, see Plumalina gracilis. 

 lonchiticus, see Alethopteris lonchitica. 

 miltoni, see Pecopteris miltoni. 

 penniformis, see Pecopteris penniformis. 

 pluckeneti, see Pseudopecopteris pluckeneti. 

 plumosus, see Pecopteris plumosa. 

 oreopteridis, see Pecopteris oreopteridis. 

 trifoliatus, see JPseudopecopteris trifoliata. 

 Flabellaria borassifolia, see Cordaites boras- 



sifolius. 

 Fucoides, Brongniart, 1822, in Mem. d. Hist. 



