911 



Roots, 



some examples are seen in the soft red sandstones of theHynd- 

 man section (12, 74, 103). Five specimens are in the special 

 collection (000, p. 251, marked 903-1, with seaweed impres- 

 sion on the wave marks), from Auburn Centre, Susquehanna 

 Co., one mile south of the village, from the bottom beds of the 

 great formation. — Pocono sandstone and coarse shale, X. See 

 specimens from Venango Co., marked (0, 128), 2887, 2888, 2917, 

 2919,2952; from Crawford Co., 3219; from Warren Co., 3341, 

 from McKean Co., 3639.— In JSfew Red soft sandstone they 

 are very abundant. See Hitchcock's Ichnology of N. Eng., 

 page 168, plate 43, fig. 3 (4, 5, omitted), reduced from a slab in 

 the Amherst Museum, 31 in. long by 25 in. wide, with ripples 

 and bird traoks; plate 55, fig. 2, reduced from another slab 9" 

 by 6" with mud gas bubbles. 



Roots of coal plants ? Andrews, in Pal. Ohio, Vol. 2, 1875, 



fcLLOhioWvLH.PLUII. 



page 424, plate 53, figs. 1, 2, natural size; probably portions 

 of Aster ophyllites^ submerged, its leaves taking the form of 

 rootlets; found in shale near the lase of the coal measures in 

 Perry Co., Ohio; the onlj other Asierophyllites found in this 

 shale being erectifoUus^ and minutus ^ if they be the latter, 

 there is a wonderful thickening of stem, and multiplication of 

 leaves. Compare Lind. &Hutton's submerged (?) Adongifolia, 

 Foss. Flor. G. B. Vol. 1, pi. 18. XII. 



Rotophycus. A radiating fucoid covering the under sur- 

 face of a plate of calcareous iron ore over Brookville ( Clarion? ) 

 coal bed, at the toll bridge, Beaver Falls, Beaver Co., Pa. Q» 

 p. 250. XIIL 



Botalia, See Endothyra baileyi. XI 



