134 



PLANTS. 



[l'HV. — I'RO. 



Phytopsis, Hall, 1847, Pal. N. Y., vol. 1, p. 

 38. [Ety. phyton, plant ; opsit, resem- 

 blance.] Stems 

 cylindrical or 

 subcylindrical, 

 straight or flex- 

 uous, erect or 



procumbent, 



mm 



I^BK 



Fig. 62.— Phytopsis 

 tubulosa. 



a n c h e d ; 

 branches diverg- 

 ing and anasto- 

 mosing ; struc- 

 ture cellular, 

 consisting ap- 



fmrently of thin 

 aminse, with 

 transverse divis- 

 ions, or having a 

 reticulated struc- 

 ture. This struc- 

 ture is too ob- 

 scure for satis- 

 factory deter- 

 mination. Type P. tubulosa. 

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



p. 39, Birdseye Gr. 

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

 p. 38, Birdseye Gr. 

 Pinnulabia, Lindley & Hutton, 1835, Foes. 

 Flora, vol. 2, p. 81. [Ety. pinna, a 

 feather.] Roots or rootlets divided in 

 filaments of variable length and thick- 

 ness, and generally possessing few 

 definable ^characters. Type P. capil- 

 lacea. 

 calamitarum, Lesquereux, 1858, Geo. Sur. 



Pa., vol. 2, p. 878, Coal Meas. 

 capillacea, Lindley & Hutton, 1835, Foss. 



Flora, vol. 2, p. 81, Coal Meas. 

 confervoides, Lesquereux, 1858, Geo. Sur. 



Pa., vol. 2, p. 878, Coal Meas. 

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



and Acad. Geol., p. 480, Coal Meas. 

 dispalans, Dawson, 1862, Quar. Jour. 



Geo. Soc., vol. 18, p. 312, Devonian, 

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



p. 33, Devonian, 

 ficoides, Lesquereux, 1868, Geo. Sur. Pa., 



vol. 2, p. 878, Coal Meas. 

 horizontalis, Lesquereux, 1858, Geo. Sur. 



Pa., vol. 2, p. 878, Coal Meas. 

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



S. 33, Devonian, 

 matifida, Lesquereux, 1860, (Rhizo- 

 lithes palmatifidus,) Geo. Sur. Ark., 

 vol. 2, p. 313, Coal Meas. 

 pinnata, Lesquereux,, 1858, Geo. Sur. Pa., 

 vol. 2, p. 878, Coal Meas. 



Fig. tS3.— Pinnularia ramosissima. 



ramosissima, Dawson, 1863, Can. Nat., 

 vol. 8, and Acad. Geol., p. 480, Coal 

 Meas. 



PlO. 84. 



Plumalina, Hall, 1858, Can. Nat. and Geo., 



vol. 3, p. 175. [Ety. pluma, a small 



feather.] Simple fronds, with linear 



pinnules diverging, from each side, in 



the same plane, and 



more or less ascend- 

 ing. It is a peculiar 



plant, described, 



originally, as a Grap- 



tolite, to which opin- 

 ion Prof. Hall still 



adheres. On the 



other hand, Prof. 



Dawson claims the 



characters prove it 



is a vegetable, and 



in this he is sup- 

 ported by the fact 



that all Graptolites 



had become extinct, 



as shown by their 



absence in several 



groups of rocks be- PlunillU ;,',;" 1>lumarlu . 



fore the appearance 



of this form. Type P. plumaria. 

 densa, Hall, 1879, 30th Rep. N. V. St. 



Mus. Nat. Hist., pi. 4, fi«. 6, Ham. Gr. 

 gracilis, Shumard, 1855, (Filicites gracilis,) 



Geo. Rep. Mo., p. 208, Waverly (ir. in 



Lithographic limestone, 

 linearis, Lesquereux, 1880, (Trochophvl- 



luin lineare,) Coal Flora of Pa., p. 64, 



Waverly Gr. 

 plumaria, Hall, 1843, (Filicites?) I 



p. 273, and 4th Dist. N. Y., 

 Can. Nat. and 

 Geo., vol. ::, 

 p. 175, Che- 

 mung Gr. 

 pluinula, Daw- 

 son, 18 7::, 

 ( Lycopodites 

 p 1 u mula, ) 

 Rep. Foss. 

 plants Low. 

 C a r b . and 

 M i 1 lstone 

 Grit, p. 24, 

 Su bcarbnnif- 

 erous. 

 Polyporites, Lind- 

 ley & Hut- 

 ton, is:;:;, 

 Foss. Flora, 

 vol. 1, p. 181. 

 This a e n u a 

 was founded 

 upon a fish- 

 scale, and the 

 form referred 

 to it in Geo. 

 Sur. Pa., vol. 

 2, p. 847, is 

 quite a dif- 

 ferent thing. 

 Polysporia, Newberry, syn. for Lepidostrobus. 



mirabilis, see Lepidostrobus mirabilis. 

 Pbotoblechnum, Lesquereux, 1880, Coal 



Flora of Pa., p. 188. [Ety. protos, first^ 



Fig. 65. 

 Protoblecbnum boldeni. 



