lOO BOTANICAL GAZETTE [august 



Railway west of Westernport, Maryland, 115 ft. below the Davis; along the 

 Western Maryland Railway opposite Dodson, Maryland, 165 ft. below the 

 Davis and along the Baltimore and Ohio Railroad; opposite Luke, Maryland, 

 at the base of the' Allegheny, 265 ft. below the horizon of the Davis. In the 

 southern anthracite field of eastern Pennsylvania it has been collected at 

 several localities from the roof shales of the Buck Mountain, or Twin Coal, 

 3 miles south of Tremont, Schuylkill County, Pennsylvania, in the Sharp 

 Mountain Gap of Swatara Creek.' 



Cantheliophorus robustus, n.sp. — This species is very similar 

 to C. novaculatus in general appearance, but may be distinguished 

 by greater relative width of the sporangiophore and of the keel, 

 while the surface of the sporangiophore is smooth or farinose and 

 not granulose. It is usually slightly larger throughout, but there 

 is considerable range in size within a single collection. — Figs. 25 

 and 26. I 



The species occurs abundantly i mile east of Westernport at a horizon 

 190 ft. below that of the Davis seam. 



Cantheliophorus sicatus, n.sp. — Among the more noteworthy 

 features of this species is the smooth sporangiophore with surface 

 usually thrown into several longitudinal folds. The blade is short, 

 as a rule not much over 12 mm. in length, and makes an angle with 

 the pedicel customarily of 150-180°, but the range must be given 

 as 120-180°. It is narrowly triangular, usually sharply reduplicate 

 and straight, but is sometimes curved well upward and may be 

 open (nearly flattened) for most of its length. — Fig. 28. 



In Maryland we made two large collections of this species from the Alle- 

 gheny formation, one of them i . 5 miles east of Stoyer along the Western Mary- 

 land Railway associated with C. linearifolius (which see) , i mile below Swallow 

 Falls on east bluff of the gorge of the Youghiogheny River, Garrett County, 

 170 ft. below the horizon of the Davis seam. It occurs somewhat sparingly 

 in the lowermost Allegheny, one-eighth of a mile east of Piedmont, West 

 Virginia, in shales above the upper seam of coal exposed along the Baltimore 

 and Ohio Railroad tracks, 260 ft. beneath the horizon of the Davis seam, and 

 also in the shales above the Lower Coal exposed a short distance to the eastward 

 of the last along the Baltimore and Ohio Railroad at a horizon 270 ft. beneath 

 that of the Davis seam (possibly in the uppermost Pottsville). There is some 

 question as to the precise systematic position of 2 imperfect specimens of 

 Cantheliophorus very close to C. sicatus from a horizon east of Bond along the 



'Listed as LepidophyUum ciillriforme by DAvro White, 20th Ann. Rept. U.S. 

 Geol. Survey, 1900, p. 825. 



