200 



PLANTS OP THE COAL. 



Professor Corda, of the Bohemian National Museum at 

 Prague, in his work above mentioned, Skizzen der vergleich- 



FIG. 137. Branching Trunk of 

 L. Sternbergili, Foss. Flo. 203. 



FIG. 138. Branching Stem, with bark 

 and leaves, Flora der Vorwelt, Erstes 

 Heft, Leipzig, 1820. PI. II. 



enden PJiytotomie vor-und jetztweltlicher Pflanzen-Stamme, or 

 Sketches of the Analogies of Structure in trhe Stems of recent 

 and fossil Plants, p. ]xxi., refers them to a totally different 

 family. He declares that both in general habit, and external 

 and internal structure, they are far more closely allied to the 

 existing crassulacece than to any other tribe, and that both 

 in external and internal characters they are strongly distin- 

 guished from lycopodiacetB. "With regard to the lepidostrobi, 

 he observes that they have never yet been proved to be the 

 fruit of lepidodendron ; and he considers them the male 

 flowers (die mannlichen Blutheri) of a plant of the fir tribe. 



The crassulacecGj or house-leek family, comprises 272 spe- 

 cies, of which 133 are found at the Cape of G-ood Hope, 52 

 in Europe, and the remainder in various regions, chiefly those 

 of the temperate zone. They occur in the driest situations, 

 where not a blade of grass nor a particle of moss can grow, 

 on naked rocks, old walls, or hot sandy plains, alternately 

 exposed to the heaviest dews of night, and the most intense 



