428 Lesquereux's Descriptions of 



tance between them from two to three inches, flattened, irre- 

 gularly dotted. Scars elevated, half globular, diminishing in 

 size, slightly emarginate below, close to each other, marked 

 in the middle by a deep, irregular point. 



Genus LEPIDODENDRON. Sternb. 



82. Lepidodendron modulatum (spec. nov.). Scars oval, 

 narrowed and acuminate at both ends, curved at the base, 

 separated by a margin one eighth of an inch broad, half round, 

 elevated, and deeply wrinkled ; wrinkles undulate and par- 

 allel to the scars. Vascular scars rhomboidal, obtuse, arched 

 above, narrowed below in a long point, acute at both sides, 

 marked with three transversal points, united by a depressed 

 line ; tubercles narrow, medial line deeply transversely fur- 

 rowed ; appendages double. 



83. Lepidodendron giganteum (spec. nov.). General 

 scars oval-trapezoid, elongated-acute at both ends. Vascular 

 scars placed nearly in the middle, rhomboidal-quadrangular, 

 transversely marked with three points ; appendages irregular, 

 longer on one side, tubercles very small, oval ; medial line 

 marked in the whole length of the general scars, smooth. 



84. Lepidodendron vestitum (spec. nov.). General scars 

 oval-trapezoid, acute at both ends, separated by an irregular, 

 elevated smooth margin, covering the borders of the scars ; 

 vascular scars quadrangular, trapezoid, placed at the summit 

 of the general scars ; three-pointed in the middle, appendages 

 none ; tubercles large, oval, diverging ; medial line deep and 

 smooth. 



85. Lepidodendron conicum (spec. nov.). General scars 

 oval, acute and narrowed at both ends ; vascular scars trian- 

 gular, conical, with a single oval point in the middle and two 

 broad oval tubercles below ; appendages none ; medial line 

 marked only by a row of undulate wrinkles, margins flat, one 

 eighth of an inch broad, very wrinkled. 



86. Lepidodendron oculatum (spec. nov.). Scars oval, 



