146 



PLANTS. 



[STR. TAO. 



truncatus, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, p. 453, Coal Meas. 



tuberosus, Lesquereux, 1870, Geo. Sur. 111., 

 vol. 4, p. 453, Coal Meas. 



villosus, Lesquereux, 1870, Geo. Sur. 111., 



vol. 4, p. 454, Coal Meas. 

 Strobilus caryophyllus, Hildreth, 1837, Am. 

 Jour. Sci. and Arts, vol. 31, p. 32, Coal 

 Meas. Possibly a Stigmaria. 

 SYRINQODENDRON, Sternberg, 1820, Essai 

 d'un exposfe Geognostico-botanique de 

 la Flore du monde primitif, 1st Cahier, 

 p. 26. [Ety. syrinx, a pipe; dendron 

 tree.] Cortex costate ; vascular scars 

 united in one ; resembles decorticated 

 stems of Sigillaria. Type 8. pes capreoli. 



bistriatum, Wood, 1860, Proc. Acad. Nat. 

 Sci., vol. 12, p. 521, Coal Meas. 



brongniarti, Geinitz, 1855,(Sigillariabrong- 

 niarti,) Verst. d. Steink form, in Sach- 

 sen, p. 47, and Coal Flora of Pa., p. 504, 

 Coal Meas. 



cyclostigma, Brongniart, 1828, Hist. d. 

 Veg. Foss., p. 480, and Coal Flora of 

 Pa., p. 505, Coal Meas. 



gracile, Dawson, 1862, Quar. Jour. Geo. 

 Soc., vol. 18, p. 308,. Waverly Gr. 



kirtlandium, Hildreth, 1837, Am. Jour. 

 Sci. & Arts, vol. 31, p. 29, Coal Meas. 



magnificum, Wood, 1866, Trans. Am. 

 Phil. Soc., vol. 13, p. 352, Coal Meas. 



organum, see Sigillaria organum. 



pachyderma, Brongniart, 1828, (Sigillaria 

 pachyderma,) Prodr. d. Hist. d. Veg. 

 Foss., p. 65, and Coal Flora of Pa., p. 503, 

 Coal Meas. 



pescapreoli, Sternberg, 1820, Essai d'un 

 exposfe Geognostico-botanique de la 

 Flore du monde primitif, 1st Cahier, p. 

 26, Coal Meas. 



porteri, Lesquereux, 1870, Geo. Sur. 111., 



vol. 4, p. 448, Coal Meas. 

 SYRINGOXYLON, Dawson, 1862, Quar. Jour. 

 Geo. Soc., vol. 18, p. 305. [Ety. syrinx, 

 a pipe; xylon, wood.] Woody tissue 

 close, thick- walled ; ducts many times 

 the diameter of the wood-cells, thin 

 walled, with transverse pores in several 

 series ; medullary rays of two or more 

 series of muriform cells ; growth rings, 

 distinct. Type S. mirabile. 



mirabile, Dawson, 1862, Quar. Jour. Geo. 



Soc., vol. 18, p. 305, Ham. Gr. 

 TjRNiopHYLLUM, Lesquereux, 1878, Proc. 

 Am. Phil. Soc., p. 330. [Ety. tainia, 

 ribbon ; phyllon, leaf.] Stems large, 

 leaves crowded, fistular, flat by com- 

 pression, thick, exactly linear, decurring 

 at the base; surface smooth, opaque, or 

 shining. Type T. decurrens. 



brevifolium, Lesquereux, 1880, Coal Flora 

 of Pa., p. 788, Coal Meas. 



contextum, Lesquereux, 1878, Proc. Am. 

 Phil. Soc., p. 332, Coal Meas. 



decurrens, Lesquereux, 1878, Proc. Am. 

 Phil. Soc., p. 331, and Coal Flora of 

 Pa., p. 464, Coal Meas. 



deflexum, Lesquereux, 1878, Proc. Am. 

 Phil. Soc., p. 331, Coal Meas. 



TJENIOPTERIS, Brongniart, 128, Prodr. Hist, 

 d. Veg. Foss., p. 61. [Ety. tainia, 

 ribbon; pttrix, fern.] Fronds simple, 

 large, linear ; medial nerve canaliculate, 

 strong; veins open, or in right angle, 

 thin, forking a little above the base or 

 more generally simple, parallel, some- 

 times joined to a marginal nerve. Type 

 T. vittata. 



lescuriana, Fontaine & White, 1880, Perm, 

 or Up. Garb. Flora, p. 91, Coal Meas. or 

 Permian. 



newberryana, Fontaine & White, 1880, 

 Perm, or Up. Carb. Flora, p. 91, Coal 

 Meas. or Permian. 



smithi, Lesquereux, 1875, Geo. Rep. Ala., 

 . 78, and Coal Flora of Pa., p. 153, Coal 



FIG. 80. Tseniopteris smithi. 



truncata, Lesquereux, 1884, Coal Flora of 



Pa., p. 743, Coal Meas. 

 TAONURUS, Fisher-Ooster, 1858, Foss. Fucoi- 

 den d. Schweizer Alpen, p. 41. [Ety. 

 toon, peacock ; oura, tail.] Frond mem- 

 branaceous, derived from utricules at- 

 tached to a lateral or central axis, 

 erected or twisted in spiral, flattened 

 in various ways, ribbed ; ribs or striae 

 curved, scythe-shaped, converging to 

 the borders, which are either free, naked 

 or attached on one side or all around 

 to the axis or its branches. Type T. 

 caudagalli. 



FIG. 81. Taonurus caudagalli. 



archimedes, Ringueberg, 1884, (Spirophy- 

 ton archimedes,) Proc. Acad. Nat. Sci. 

 Phil., p. 144, Medina Gr. 



caudagalli, Vanuxem, 1842, (Fucoides 



