Cala. 106 



Calamites, many excellent sterns^ well preserved, several 

 feet long but very slender, in SS. No. 2. of Eock run section, 

 under Cong. KKK, p. 75, Fayette Co., Pa.— ZZ-X//. 



Calamite roots, in SS. at base of coal measures, over Potts- 

 ville Conglomerate, Cranberry sect. Venango Co., Pa., CarlPs 

 report III, p. 438.— X//-X///. 



Calamite impressions numerous in the Middle Conglomerate 

 beds. Broad Top, Huntingdon Co., Pa., T3, 71.— X//. 



Calamite stems numerous in black shale under coal bed, 

 mouth of Laurel run, Ohiopile falls, Fayette Co., Pa., Steven- 

 son's report KKK, SS.— XIII. 



Calamites, a fine 5^6??^ replaced by ''blue lump iron ore" 

 (exhibited in the office of the pit boss, Dunbar mines, Fayette 

 Co.. Pa.,) from clay bed 4 feet under Pittsburgh coal. Steven- 

 son's KK, 182.— X/F-XF. 



Calamite impressions on the partings of the Redstone coal 

 bed in Fayette Co., Pa. KK, 374.— XF 



Calamites plentiful in Washington Upper (white) lime- 

 stone (No. VI) in the Upper Barren Coal measures of Greene 

 Co., Pa. Stevenson's report K, 47. — XVI 



Calamites in the Conglomerate, north of Akron in Ohio, 

 are the commonest plant ; and so numerous are the broken, 

 macerated, drifted stem impressions, that they must have been 

 piled up by the waves on an ancient sand shore. The smaller 

 ones have perished; the bark of the larger ones has become, 

 sometimes, a film of coal ; rarely, a thin stratum of coal, a few 

 rods in extent, always without underclay. Ohio reports, 

 quoted in Rt. I, p. 64. 



Calamocladus equisetiformis. See Asterophyllites equi- 

 setiformis. — XII. 



Calam.odendron, stem^ 6 feet long, with many -fi^ne fern 

 impi'essions^ in the roof of the Waynesburg coal bed, Greene 

 Co., Pa. K, 131.— XF 



Calamopora. See Favosites favosus. F&. 



Calam.ostacliys tuberculata, in the Darlington coal bed, 

 Beaver Co., Pa. Rt. Q, p. 54. — XIII 



Callipteridium. mansfleldi. Lesq. Coal Flora, p. 1G6, pi. 

 27, f. 1, 2, in the Darlington coal bed, Beaver Co., Pa. I. 0. 

 White's Et. Q, U.—XIII 



