EXPLANATION OF THE PLATES 
Heterangium shorense, and H. tiliwoides. 
Heterangium Lomaxii. 
Heterangium shorense, and H. tilieoides. 
Heterangium tilieoides, H. Lomazcii, and H. minimum. 
Distribution of North American Melanthacem. (Map.) 
Calamopitys americana. 
Calamopitys annularis. ' 
Calamopitys Saturni, C. fasicularis, and C. Beinertiana. 
Flowers of Fumaria and Rupicapnos. 
Fumaria Ballii, sp. nov. 
Fumaria berberica, sp. nov., and F. montana, J. A. Schmidt. 
Fumaria coccinea, sp. nov. 
Fumaria australis, sp. nov. 
Rupicapnos muricaria, Pomel, and X. pretermissa, sp. nov. 
Liupicapnos longipes, Pomel, and R. sublevis, sp. nov. 
Rupicapnos surcocapnoides, Pomel. 
17,18. Chlor humicol 
19, 20. Bennettites Scotti. 
Cladonia digitata, and C. pycidata. 
Cladonia digitata. 
23-25. Calamophloios and Dictyocalamites. 
