PRrETz: FLoRA OF LEHIGH CoUNTY, PENNSYLVANIA 69 
shaded bog as ‘“‘waist high’’ or approximately 1 m., which is 
rather over maximum luxuriance. Fruits late in July. Herba- 
ceous, early withering, the fertile fronds persistent through the 
winter. 
The obtusilobata form has not been collected but may be 
looked for with the type. 
OSMUNDA CINNAMOMEA L. 
General throughout, in moist or wet situations. Most abund- 
dant in the vicinity of the Kittatinny and South Mountains where 
in the bogs it not infrequently attains a height of 1.74 m. Fruiting 
by the middle of May but has been recorded as early as May 2. 
In the open, plants with 15 fertile fronds have been noted while 
8 to 10 are not infrequent. Fertile fronds less abundant in shade. 
Herbaceous, the pinnae which are variable in outline early wither- 
ing, the stipes persistent. : 
The frondosa form has been collected. (On the South Moun- 
tains along the Lehigh River, May 12, 1899, Hamm.) 
OSMUNDA CLAYTONIANA L. 
General throughout, but. preferring drier situations than O. 
cinnamomea, though occasionally associated with it. Reaching 
the height of 1 m. in luxuriance, but usually lower in height than 
O. cinnamomea when associated with that species. A frequent 
species of the wilder roadsides and in such situations sometimes 
abundant. Fruiting with O.cinnamomea and herbaceous as in 
that species. : 
OSMUNDA SPECTABILIS Willd. 
General throughout, in wet situations. Most abundant in 
bogs and marshes in the vicinity of the Kittatinny and South 
Mountains. Approximately 1 m. in height in luxuriance. Fruits 
in general later than O. cinnamomea, with which it is frequently 
associated. Herbaceous. 
PELLAEA ATROPURPUREA (L.) Link 
Though absent from some outcrops this species is so frequent 
on limestone and shale outcrops that it is to be expected every- 
where in the county on outcrops of these formations. Along the 
