PLANTS. 



35 



pusillajLesquereux, 1858, Geo. Sur.Penn., 



vol. 2, Coal Meas. [Sig. very small.] 

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



vol. 8, Coal Meas. [Sig. inflexible.] 

 seiiii, see Alethopteris serlii. 

 serrulata, Hartt,1868, Acad. Geo., Devon- 

 ian. [Sig. like a small saw.] 

 shsefferi, Lesquereux, 1858, Catal. Potts. 



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

 sillimani, Brongiaiart, 1828, Hist. Veg. 



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

 squamosa, Lesquereux, 1870, Geo. Sur. 



111., vol. 4, Coal Meas. [Sig. scaly.] 

 strongi, Lesquereux, 1870, Geo. Sur. lU., 



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

 tseniopteroides, Bimbury, 1847, Quar. 



Jour. Geo. Soc, vol. 3, Coal Meas. 



[Sig. like Txtiiopteris-I 

 tenuis, Brongniart, 1828, Prodr. Hist. Veg. 



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

 unita, Brongniart, 1828, Prodr. Hist. Veg. 



Foss., Coal Meas. [Sig. from the united 



pinnules.] 

 urophylla, see Alethopteris urophylla. 

 velutina, Lesquereux, 1858, Geo. Sur. 



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

 villosa, Brongniart, 1828, Hist. Veg. Foss., 



Coal Meas. [Si§. covered with short 



hair-like projections.] 

 Phylloptekis, Brongniart, 1828,Tab. d. Gen., 



etc. [Ety. phylkin, a leaf ; ptei'is, a fern. ] 

 antiqua, Dawson, 1863, Can. Nat., vol. 8, 



Coal Meas. [Sig. ancient.] 

 Phytolithus, Martin, 1809, Petrificata Derbien- 



sia. I'Ety. phyton, a plant ; lithos, stone.] 

 canceUatvs, see Sigillaria cancellata. 

 dawsoni, see Sigillaria dawsoni. 

 decoratus, see Calamites decoratus. 

 martini, see Sigillaria martini. 

 notatus, see Sigillaria notata. 

 reticulatm, see Stigmaria reticulata. 

 sulcatus, see Calamites sulcatus. 

 tessellatus, see Sigillaria tessellata. 

 transversiK, see Artisia transversa. 

 verrucosus, see Stigmaria verrucosa. 

 PHYSOPHrcus, Schimper, 1869, Pal. Veg. [Ety. 



phyton, a plaint ; phyios, a sea weed.] 

 marginatus, Lesquereux, 1866, (Caulerpi- 



tes marginatus) Trans. Am. Phil. Soc, 



vol. 13, Coal Meas. [Sig. margined.] 

 Phytopsis, Hall, 1847, Pal. N. Y., vol. 1. [Ety. 



phyton, a plant ; opsis, resemblance.] 

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



Birdseye Gr. [Sig. from the cellular 



substance.] 

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



Birdseye Gr. [Sig. aboundmgm tubes.] 

 PiNNULAKiA, Lindley & Hutton, 1835, Foss. 



Flora, vol. 2. [Ety. pinna, a feather.] 

 calamitarum, Lesquereux, 1858, Geo. Sur. 



Penn., vol. 2, Coal Meas. [Sig. like 



the genus Calamites.} 

 capillacea, Lindley & Hutton, 1835, Foss. 



Flora, Coal Meas. [Sig. stringy, as 



the roots of herbs.] 

 confervoides, Lesquereux, 1858, Geo. bur. 



Penn., vol. 2, Coal Meas. [Sig. like 



Conferva.'] 



crassa, Dawson, 1863, Can. Nat., vol. 8, 



Coal Meas. [Sig. thick.] 

 dispalans, Dawson, 1852, Quar. Jour. 



Geo. Soc, vol. 18, Devonian. [Sig. 



straggling, stray.] 

 elongata, Dawson, 1871, Foss. Plants Can., 



Devonian. [Sig. lengthened.] 

 fucoides, Lesquereux, 1868, Geo. Sur. 



Penn., vol. 2, Coal Meas. [Ety. /mow, 



sea weed ; ewlos, likeness.] 

 horizontaUs, Lesquereux, 1858, Geo. Sur. 



Penn., vol. 2, Coal Meas. [Sig. hori- 

 zontal.] 

 nodosa, Dawson, 1871, Foss. Plants Can., 



Devonian. [Sig. knotty.] 

 pinnata, Lesquereux, 1858, Geo. Sur. 



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

 ramosissima, Dawson, 1863, Can. Nat.,vol. 



8, Coal Meas. [Sig. very branchy.] 

 PoLYPORiTES, Lindley & Hutton, 1833, Foss. 



Flora. [Ety. from its resemblance to 



the Polyporus versicolor. ~\ 

 bowmanni, Lindley & Hutton, 1833, Foss. 



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

 polysporus, Newberry, 1873,Ohio Pal.,vol. 



1. [Ety. polys, many; sporos, seed.] 

 mirabilis, Newberry, 1873, Ohio Pal.,vol.l, 



Coal Meas. [Sig. wonderful, strange.] 

 Pkototaxites, Dawson, 1859, Quar. Jour. 



Geo. Soc, vol. 15. [Ety. pr-otos, first; 



toxjts, Yew tree ; so named from the 



spirally marked cells characteristic of 



the genus Taxites.~\ Carruthers says 



it is an Alga and has therefore called 



it Nematophycus. 

 logani, Dawson, 1859, Quar. Jour. Geo. 



Soc, vol. 15, Devonian. [Ety. proper 



name.] This is the oldest known tree 



in America, according to Dawson, but 



Carruthers says it is a huge sea-weed 



and has named it Nematophycus 



logani. 

 PsAKONius, Cotta, 1832, Dendrol. in Bezie- 



hung. [Ety. psaros, speckled.] 

 erianus, Dawson, 1871, Foss. Plants Can., 



Devonian. [Ety. proper name.] 

 textilis, Dawson, 1871, Foss. Plants Can., 



Devonian. [Sig. woven, like a web.] 

 PsiLOFHYTON, Dawson, 1859, Quar. Jour.Geo. 



Soc, vol. 15. [Ety. pdlon, smooth; 



phyton, stem.] 

 elegans, Dawson, 1862, Quar. Jour. Geo. 



Soc, vol. 18, Devonian. [Sig. elegant.] 

 glabrum, Dawson, 1862, Quar. Jour. Geo. 



Soc, vol. 18, Devonian. [Sig. without 



hair, smooth.] 

 princeps, Dawson, 1859, Quar. Jour. Geo. 



Soc, Upper Silurian and Devonian. 



[Sig. original, principal.] This is the 



oldest known plant in America. It is 



supposed to have grown in a marsh. 

 robustius, Dawson, 1859,Qiiar. Jour. Geo. 



Soc, vol. 15, Devonian. [Sig. strong, 



like oak.] 

 Ptilocarpus, Lesquereux, 1870, Geo. Sur. 



111. , vol. 4. [Ety, ptUon, a wing ; karpos, 



fruit.]' 



