CHEILANTHES AND MAIDENHAIR. 241 
mentosa. It is easily our smallest Cheilanthes.  Ordi- 
nary specimens are but two inches high, while the tallest 
do not reach a length of more than six inches. The 
fronds form dense tangled mats and’ the me 
rootstocks are so interwoven that it is usu- : 
ally impossible to separate single plants 
without injuring them. ick: 
The blade is about ovate-lanceolate in 
outline and is twice pinnate with pinnatifid 
pinnules, oreventhree times pinnate. Itis 
further distinguished by bearing the lowest 
pair of pinnze at some distance from the 
others. All the pinnules are so crowded 
that the frond appears to be less divided 
than it really is. The sori and indusia 
are similar to those C. vestita. In old 
fronds the wool on the under surface is deep, 
dark brown and quite conspicuous. <A 
fruiting pinna will be found in the initial il- a 
lustration for this chapter. 
} 
Chetlanthes lanuginosa grows on exposed ledges from 
Texas and Arizona to Illinois, Minnesota and British 
Columbia. In part of its range, at least, the species is 
evergreen. This plant has had its full share of change 
at the hands of the nomenclaturist. It was long known as 
C. lanuginosa. Later the name of graczlis was decided 
to be the older and was accordingly adopted. Still 
more recently it has been renamed C. Feez in deference 
to the rule of priority, this last name having been 
discovered to be still older. Whether this is the final 
change remains to be seen. 
ghey 
Cheilanthes lanuginose. 
