PLANTiE. 



33 



obliqua, Goeppert, 1841, Gatt. Foss. Pflan- 

 zen, Coal Meas. [Ety. from the ob- 

 lique attachment of the leaves.] 



ohtusa, Lesquereux, 1858, Geo.Sur.Penn., 

 vol. 2, Coal Meas. [Ety. obtusus, from 

 the blunt termination of the leaf.] 

 Prof. Dawson refers this species to the 

 genus Cyclopteris. 

 Odontoptkhis, Brongniart, 1822, Mem. du 

 Mus. d'Hist. Nat. de Paris. [Ety. 

 odous, a tooth ; ptem, a fern.] 



sequalis, Lesquereux, 1860, Geo. Sur. 111., 

 vol. 2, Coal Meas. [Sig. equal, of the 

 same shape as another.] 



alata, Lesquereux, 1858, Catal. Pottsville 

 Foss., Coal Meas. [Sig. winged.] 



antiqua, Dawson, 1863, Can. Nat. & Geo., 

 Coal Meas. [Sig. ancient.] 



bradleyi, Lesquereux, 1870, Geo. Sur. 111., 

 vol. 4, Coal Meas. [Ety. proper name.] 



brardi, Brongniart, 1828, Prodr. Hist. Veg. 

 Foss., Coal Meas. [Ety. proper name.] 



crenulata, Brongniart, 1828, Hist. Veg. 

 Foss., Coal Meas. [Sig. crenulated.] 



dubia, Lesquereux, 1858, Geo. Sur. Penn., 

 vol. 2, Coal Meas. [Sig. doubtful.] 



gracilhma, Newberry, 1873, Ohio Pal., 

 vol. 1, Coal Meas. [Sig. very slender.] 



heterophylla, Lesquereux, 1866, Geo. Sur. 

 111., vol. 2, Coal Meas. [Ety. heteros, 

 different ; phyllon, a leaf.] 



intermedia, Lesquereux, 1860, Geo. Sur. 

 Ark., vol. 2, Coal Meas. [Sig. inter- 

 mediate.] 



neuropteroides, Newberry, 1873, Ohio 

 Pal., vol. 1, Lower, Coal Meas. [Ety. 

 from its resemblance to Neuropteris.} 



schlotheimi, Brongniart, 1828, Hist. Veg. 

 Foss., Coal Meas. [Ety. proper name.] 



squamosa, Lesquereux, 1858, Geo. Sur. 

 Penn., vol. 2, Coal Meas. [Sig. scaly.] 



subcuneata, Bunbury, 1847, Quar. Geo. 

 Jour., vol. 3, Coal Meas. [Sig. some- 

 what wedge-shaped.] 



wortheni, Lesquereux, 1866, Geo. Sur. 111., 



vol. 2, Coal Meas. [Ety. proper name.] 



Ormoxylon, Dawson, 1871, Foss. Plants 



Canada. (Ety. ormos, a chain, a cord; 



xylon, wood.] 



erianum, Dawson, 1871, Foss. Plants Can- 

 ada, Devonian. [Ety. proper name.] 

 Orthogoniopteris, Andrews, 1875, Ohio 

 Pal., vol. 2. [Ety. orthogoniopteris, 

 rectangular-fern.] 



clara, Andrews, 1875, Ohio Pal., vol. 2, 

 Coal Meas. [Sig. clear, distinct.] 



gilberti, Andrews, 1875, Ohio Pal., vol. 2, 

 Coal Meas. [Ety. proper name.] 

 Pachyphyllum, Lesquereux, 1858, Geo. Sur. 

 Penn., vol. 2. [Ety. pachys, thick; 

 phyllon, a leaf.] This name was pre- 

 occupied in the class Polypi. See 

 Rhacophyllum. 



affine, see Ehacophyllum afflne. 



jfimh-iatum,see Rhacophyllum flmbriatum 



hirsutum, see Ehacophyllum hirsutum. 



laceralum, see Rhacophyllum laceratum, 



lactuca, see Rhacophyllum lactuca. 

 e 



Pachyptekis, Brongniart, 1828, Prodr. Hist, 



Veg. Foss. [Ety. pachys, thick ; pterig. 



fern.] 

 gracillima, Lesquereux, 1870, Geo. Sur. 111., 



vol. 4, Coal Meas. [Sig. very slender.] 

 Pal^ochorda, McCoy, 1849, Quar. Jour. 



Geol. Soc, vol. 4. [Ety. palaios, 



ancient; chorde, an intestine.] 

 marina. Fitch, 1856, Am. Geol., Potsdam 



Gr. [Sig. pertaining to the sea.] 

 tenuis. Fitch, 1856, Am. Geol., Potsdam 



Gr. [Sig. slender.] 

 Paljeophycus, Hall, 1847, Pal. N. Y., vol. 1. 



[Ety. palaios, ancient; phykos, sea- 

 weed.] 

 articulatus, Winchell, 1864, Am. Jour. Sci. 



& Arts, 2d series, vol. 37, Potsdam Gr. 



[Ety. from the articulated stems.] 

 beauharnoisensis, Billings,1862, Pal.Foss., 



vol. 1, Calcif. Gr. [Ety. proper name.] 

 beverleyensis, Billings,1862,Pal. Fo8S.,vol. 



1, Potsdam Gr. [Ety. proper name.] 

 congregatus, Billings, 1861, Pal. Foss., vol. 



1, Potsdam Gr. [Sig. assembled to- 

 gether.] 

 divaricatus, Lesquereux, 1876, 7th Ann. 



Rep. Geol. Sur. Ind., Coal Meas. [Sig. 



wide apart.] 

 funiculus, Billings, 1862, Pal. Foss., vol. 



1, Calcif. Gr. [Sig. a rope.] 

 gracilis, Lesquereux, 1876, 7th Ann. Rep. 



Geol. Sur. Ind., Coal Meas. [Sig. 



slender.] 

 incipiens, Billings, 1861, Pal. Foss., vol. 1, 



Potsdam Gr. [Sig. the beginning.] 

 informis, Winchell, 1864, Am. Jour. Sci. 



& Arts, vol. 87, Potsdam Gr. [Sig. 



irregularis. Hall, 1847, Pal. N. Y., vol. 1, 



Calcif. Gr. [Sig. irregular.] 

 milleri, Lesquereux, 1876, 7th Ann. Rep. 



Geol. Sur. Ind., Coal Meas. [Ety. 



proper name.] 

 obscurus, BiUings, 1862, Pal. Foss., vol. 



1, Trenton Gr. [Sig. obscure.] 

 rogosus. Hall, 1847, Pal. N. Y., vol. 1, 



Trenton Gr. [Sig. full of wrinkles.] 

 simplex. Hall, 1847, Pal. N. Y., vol. 1, 



Trenton Gr. [Sig. simple.] 

 striatus, Hall, 1852, Pal. N. Y., vol. 2, 



Clinton Gr. [Sig. striated.] 

 tortuosas. Hall, 1852, Pal. N. Y., vol. 2, 



Medina sandstone. [Ety. from the 



tortuous branches.] 

 tubularis. Hall, 1847, Pal. N. Y., vol. 1, 



Calcif. Gr. [Sig. hollow like a pipe.] 

 virgatus. Hall, 1847, Pal. N. Y., vol. 1, 



Hud. Riv. Gr. [Sig. twig-like.] 

 Palseoptais, being preoccupied, see Arch- 



seopteris. 

 acadica, see Archseopteris aoadica. 

 hartii, see Archseopteris harti. 

 PALiEOXYRis, Brongniart, 1828, Ann. Sc. Nat., 



vol. 15. [Ety. palaios, ancient; Xyris, a 



plant.] 

 appendiculata, Lesquereux, 1870, Geo. 



Sur. 111., vol. 4, Coal Meas. [Sig. 



having lateral appendages.] 



