VEGETABLE KINGDOM. 



PLAITTJB 



The genus Prototaxites was founded by Dawson upon fossil wood, supposed to resemble 

 the genus Taxites. The same author founded the genus Nematoxylon, upon what he supposed 

 to be nearly related fossil wood. Mr. Carruthers examined the same specimens and pro- 

 nounced them both Algae, and founded the new genus Nematophycm. Seeds, stems, roots 

 and other organs of uncertain affinity, have received generic and specific names. Some 

 fossils are classed by some authors with the Algae, as Cruziana, Scolithux, etc., while others 

 regard them as tracks of marine animals. Authors are not in accord, even on the arrange- 

 ment of the fronds and branches of ferns into families. For these reasons, I have not 

 undertaken to arrange the fossils of the vegetable kingdom, represented in the palaeozoic 

 rocks, into families. 



Acanthophytox, Dawson, 1862, Quar. Jour. 



Geo. Soc, vol. 18. [Ety. akantha, a 



thorn ; phyton, a plant.] 

 spinosum, Dawson, 1862, Quar. Jour. Geo. 



Soc, vol. 18, Chemung Gr. [Sig. 



thorny.] 

 Alethopteris, Sternberg, 1825, Vers. Darst. 



Flora der Vorwelt. [Ety. alethos, true ; 



pteris, a fern.] 

 acuta, Brongniart, 18 2 8, (Pecopteris 



acuta) Prodrome d'un Histoire des 



Vegetaux Fossiles, Coal Meas. [Sig. 



acute.] 

 aquilina, Brongniart, 1828, (Pecopteris 



aquilina) Prodr. Hist. Veg. Foss., 



Coal Meas. [Ety. aquilimis, like an 



eagle ; from Pteris aquilina, the eagle 



brake.] 

 bunburyi, Andrews, 1875, Ohio Pal., vol. 



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

 coxana, Lesquereux, 1861, Geo. Sur. Ky., 



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

 crenulata, Brongniart, 1828, (Pecopteris 



crenulata) Prodr. Hist. Veg. Foss., 



Coal Meas. [Sig. slightly crenulated 



or zigzagged.] 

 cristata, Gutbier, 1843, (Pecopteris cris- 



tata) in Geea von Sachsen, Coal Meas. 



[Sig. crested.] 

 discrepans, Dawson, 1868, Acad. Geol., 



Devonian. [Sig. different.] 

 distans, Lesquereux, 1858,Geo. Sur.Penn., 



vol. 2, Coal Meas. [Ety. from the dis- 

 tant pinnules.] 

 emarginata, Gceppert, 1836, (Pecopteris 



emarginata) Syst. Filic. Foss., Coal 



Meas. [Sig. without a border.] 

 erosa, Gutbier, 1843, (Pecopteris erosa) in 



Gsea von Sachsen, Coal Meas. [Sig. 



eroded.] 

 falcata, Lesquereux, 1870, Geo. Sur. 111., 



vol. 4, Coal Meas. [Sig. sickle-shaped.] 



grandifolia, Newberry, 1873, Ohio Pal., 

 vol. 1, Coal Meas. [Sig. large-leaved.] 



grandis, Dawson, 1863, Can. Nat. & Geol., 

 vol. 8, Coal Meas. [Sig. grand, large.] 



halli, Lesquereux, 1870, Geo. Sur. 111., 

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



heterophylla, Lindley & Hutton, 1833, 

 (Pecopteris heterophylla) Foss. Flora, 

 Coal Meas. [Sig. irregularly-leaved.] 



holdeni, Andrews, 1875, Ohio Pal., vol. 

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



hymenophylloides, Lesquereux, 18 7 0, 

 Geo. Sur. 111., vol. 4, Coal Meas. [Ety. 

 from resemblance to Hymenophyllites.'] 



inflata, Lesquereux, 1870, Geo. Sur. 111., 

 vol. 4, Coal Meas. [Sig. inflated.] 



ingens, Dawson, 1868, Acad. Geol., De- 

 vonian. [Sig. huge.] 



laevis, Lesquereux, 1858, Geo. Sur. Penn., 

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



lanceolata, Lesquereux, 1870, Geo. Sur. 

 111., vol. 4, Coal Meas. [Sig. lance- 

 shaped.] 



lonchitidis, Sternberg, 1824, (Filicites 

 lonchiticus) Vers. Darst. Flora der 

 Vorwelt, Coal Meas. [Ety. from Lon- 

 chitis; the fern, " adder's tongue."] 



longifolia, Presl, 1838, (Pecopteris longi- 

 folia) in Sternb. Flora der Vorwelt, 

 Coal Meas. [Sig. long-leaved.] 



macrophylla, Newberry, 1873, Ohio Pal. 

 vol. 1, Coal Meas. [Sig. long-leaved.] 



marginata, Brongniart, 1828, (Neuropteris 

 marginata) Hist. Veg. Foss., Coal 

 Meas. [Sig. bordered.] 



massillonis, Lesquereux, 1866, Geo. Sur. 

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

 name.] 



maxima, Andrews, 1875, Ohio. Pal., vol. 

 2, Coal Meas. [Sig. the largest.] 



