Notes anp NEews 59 
failed. The occurrence of apogamy appears to be not 
at all dependent on external conditions (cultural, at 
least), but an inherent trait. 
GCA. 
Notes and News 
FERNS oF THE OSAGE Nation, Ox~aHnoma.—The 
Osage Nation or Osage County occupies a large part 
of north central Oklahoma, extending from the Kansas 
State line south to the Arkansas River. So far as 
the writer is aware, little has been published on the 
ferns of this or other parts of the state and it is believed 
that a few brief notes on the ferns of the region will 
Prove of interest. 
Woodsia obtusa, Pellaea atropurpurea, and Asplenvum 
platyneuron, are the most abundant species and are 
‘ommon everywhere on sandstone, the prevailing type 
of rock in the eastern part of the county. Cheilanthes 
lanosa, Filix fragilis, Dryopteris marginalis, Asplenium 
irichomanes, and Selaginella rupestris can usually be 
found also where sandstone outcrops. . 
On the limestone ledges Notholaena dealbata and 
Pellaea atropurpurea are everywhere abundant. Pellaea 
Vlabella was found at a number of places in Osage County, 
also in P awnee and Kay counties and in Butler County, 
Kansas, but it is rather rare. 
Ophioglossum engelmanni is one of the most common 
Plants of the region. It is especially abundant m thin 
limestone soils, but also was noted frequently on shale 
and Sandstone soils. 
Along the Arkansas River in both Osage and Pawnee 
*ounties Cheilanthes tomentosa was found in large patches 
ary sandstone cliffs. It was not found in similar 
Situations farther north. 
on nPlosorus rhizophyllus was found in 
Moist sandstone cliffs and one large ¢o 
three places 
lony of Poly- 
