PLATE IX. 



Lepidosfrobus Riissellianm, Binney. 



Fig. 1 (No. 21). .4 Cone, not perfect, froui the Blackband Tronstone, near Airdrie, 

 Scotland. Natural size. 



Fig. \a. A portion of the colainn of the Cone, and two Scales, supporting two 

 Sporangia, full of Macrospores. Magnified 5 diameters. 



Fig. 2 (No. 22). An imperfect Cone from the Blackband Ironstone, near Airdrie. 

 Natural size. 



Fig. 2a. A portion of the Column, and a Sporangium, full of Macrospores. Mag- 

 nified 5 diameters. 



Lepidostrobus ? dii.bius, Binney. 



Fig. 3 (No. 23). The imperfect Cone from the Blackband Ironstone, near Airdrie. 

 Natural size. 



Fig. 'ia. A portion of the Columu, and two Scales, supporting two Sporangia, full of 

 Macrospores. Magnified 5 diameters. 



Lepidostrobus tenuis, Binney, 



Fig. 4 (No, 24). A fragment of a Cone from the Blackband Ironstone, near Airdrie. 

 Natural size. 



Fig. 4«. Two Scales, and two Sporangia, full of Maci'ospoi-es. Magnified 

 5 diameters. 



