58 Dr. W. C. Williamson on 



LIST OF WORKS AND GENERAL INDEX 



ON THE ORGANISATION OF THE 



FOSSIL PLANTS OF THE COAL MEASURES. 



Symbols. Parts. 



A. I. Calamites and suggested genus Calamopitus (not subsequently- 



insisted upon). Figs. i6 & 17 do not belong to Calamites 

 but to the subsequently adopted genus Astromyelon. 

 Phil. Trans., 1871. 



B. II. Lepidodendron selaginoides, Diploxylon (Corda), Ulodendron, 



Favularia, Sigillaria, Stigmaria, Lepidodendroid Cone (?) 

 ultimately Lepidodendron parvulum. {Memoir XVI.) 

 Anabathra. P/ti/. Trans., 1872. 



C. III. Lepidodendron brevifolium. (Burntisland form) and its 



Lepidostrobus. Restoration of Lepidodendron. Pkil. 

 Trans., 1872. 



D. IV. Lyginodendron Oldhamium ; Heterangium Grievii. PAiL 



Trans., 1873. 



E. V. Asterophyllites with Sphenophylloid axis. Sphenophyllum» 



Volkmannia (subsequently Bowmanites) Dawsoni, Strobilus 

 of Asterophyllites (subsequently Paracalamostachys 

 Williamsoniana ; Weiss) Asterophyllites fruit (subsequently 

 Palaeostachya pedunculata. (See Weiss. Steinkohlen- 

 Calamarien). Calamostachys Binneyana, Calamites verti- 

 cillatus. Root of Asterophyllites (afterwards Amyelon). 

 PAH. Trans., 1874. 



F. VI. Rachiopteris aspera (afterwards petiole of Lyginodendron 



01dhamium)Rachiopteris Oldhamium, Rachiopteris duplex, 

 Rachiopteris Lacattii, Rachiopteris bibractensis, Anacho- 

 ropteris Decaisnii. Pkil. Trans., 1874. 



G. VII. Myelopteris (Medullosa of Cotta), Psaronius Renaultii, Kalo- 



xylon Hookeri. Phil. Trans., 1876. 



H. VIII. Rachiopteris corrugata, Fern Sporangia, Gymnospermae, 

 Dadoxylon, Gymnospermous Seeds, Lagenostoma ovoides, 

 Lagenostoma physoides, Conostoma oblonga, Conostoma 

 ovalis, Conostoma intermedia, Malacotesta oblonga, 

 Trigonocarpon olivaeforme, Hexapterospermun Noggerathi, 

 Cardiocarpon anomalum, Cardiocarpon compressum, Car- 

 diocarpon acutum, Cardiocarpon Butterworthii, Polyptero- 

 spermum. Phil. Trans. 1877. 



I. IX. Astromyelon, subsequently A. Williamsonis, Calamites, Aste- 



rophyllites, Lepidodendron selaginoides, Lepidostrobus, 

 Macrospores, Rachiopteris rotundata, Rachiopteris cylin- 

 drica, Cordaites (?) epiderm, Lyginodendron (?) anomalum, 

 Lepidodendroid cortex, Oidosporaanomala, Volkmannia (?) 

 parvula. Phil. Trans., 1878. 



