104 



PLANTS. 



[ACA.— ALE. 



Antholithes, Asterocarpus, Cardiocarpon, Carpolithes, Cordaianthus, Cordaicarpus, 

 Cordaistrobus, Cordaites, Desraiophyllum, Dicranophyllum, Lepidoxylon, Rhab- 

 docarpus, Trigonocarpum. 



FRUIT OF UNCERTAIN AFFINITY. 



Gulielmites. 



The Conifene are exogenous evergreen trees and shrubs, with branching trunks 



containing a resinous juice. They have a strobile cone or solitary seed. Three 



Paleozoic genera have been referred to the Conifer*: viz., Dadoxylon, Sapor., a, 



and Walchia, but there must be doubt about the reference of Dadoxylon to this Class. 



WOOD OF UNCERTAIN AFFINITY. 



Celluloxylon, Nematoxylon, Ormoxylon, Prototaxites, Sternbergia, Syringoxylon. 



AcANTnopnYTON, Dawson, 1862, Quar. Jour. 

 Geo. Soc., vol. 18. p. 324. [Ety. akantha 

 thorn; phyton.. plant.] Cylindrical 

 branches, ramifying in alternate man- 

 ner, striated, with scattered tubercles, on 

 which are borne short spines. Type A. 

 spinosum. 

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

 Soc, vol. 18. p. 324, Chemung Gr. 

 Alethoptkkis, Sternberg, 1825, Vers. Darst. 

 Flora der Vorw.lt. i». 21. [Ety. alethos, 

 true ; ptrris, fern.] Fronds polypinnate ; 

 pinnules coriaceous, simple, mostly en- 

 tire, enlarged at the base, connate or 

 free, borders reflexed ; midrib distinct, 

 immersed into the epidermis, marked 

 by a groove on the upper surface; 

 prominent on the lower; lateral v. ins 

 simple or forking once, open, often in 

 right angle to the rachis; fructifications 

 marginal. Type A. lonchitica. 

 acuta, see Pecopteris acuta, 

 ambigua, Lesquereux, 1880, Coal Flora of 



Pa., p. 182, Coal Meas. 



aquilina, Schlotheim, 1820, (Filicites 



aquilinus,) Petrefaktenkunde, p. 405, 



and Coal Flora of Pa., p. 181, Coal Meas. 



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



2, p. 421, Coal Meas. 

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



vol. 4, p 433, Coal. Meas. 

 crassa, Lesquereux, 1884, Coal Flora of 



Pa., p. 748, Coal Meas. 

 crenulata, Brongniart, as identified by 

 Lesquereux, in Geo. Sur. 111., vol. 2, 

 p. 439, is Pseudopecopteris subcrenu- 

 fata. 

 cristata, see Pecopteris cristata. 

 discrepans, Dawson, 1862, Jour. Geo. Soc, 



vol. 18, p. 222, Devonian. 

 distans, Lesquereux, 1858, Geo. Sur. Pa., 

 vol. 2, p. 865, is a variety of A. lon- 

 chitica. 

 emarginata, see Pecopteris emarginata. 

 erosa, see Pecopteris erosa. 

 evansi, Lesquereux, 1884, Coal Flora of 

 Pa., p. 834, Coal Meas. 



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



vol. 4, p. 396, Coal Meas. 

 gibsoni, Lesquereux, 1880, Coal Flora of 



Pa., p. 183, Coal Meas. 

 grandifolia, Newberry, 1873, Ohio Pal., 



vol. 1, p. 384, Coal Meas. 

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

 v. .1. 8, and Acad. < teol. |>. 484, Coal Meas. 

 halli, see Pecopteris halli. 

 helense, Lesquereux, 1880, Coal Flora of 



Pa. p. 179, Coal Meas. 

 heterophylla, Lindley & Hutton ,1833, 

 (Pecopteris heterophylla,) Fobs. Flora, 

 v..l. 1, ]>. 113, Coal Meas. 

 holdeni, see Protobleclmum holdeni. 

 hymenophylloiiles, see Pseudopecopteris 

 livinenophylloi- 

 des. 

 inflata, see Callip- 

 teridium inlia- 

 tum. 

 iiiL'fns, Dawson, 

 868, Acad. Geol. 

 p. 553, Devo- 

 nian, 

 lsevis, Lesquereux, 

 1858, Geo. Sur. 

 Pa., vol. 2, p. 865, 

 Coal Meas. 

 lanceolata, see Pe- 

 copteris lanceo- 

 lata. 

 lonchitica, Schlo- 

 theim, 1820, (Fi- 

 licites lonchiti- 

 cus,) Nachtrage 

 zur Petrefakten- 

 kunde, *p. 411, 

 and Coal Flora 

 of Pa., p. 177, 

 Coal Meas. 

 longifolia, see Pe- 

 copteris longi- 

 folia. 



macrophylla, see Danseites Macrophyllus. 

 massillionis, see Callipteridium massillo- 

 neum. 



Fig. 5.— Alethopteris 

 louchitica. 



