68 AMERICAN FERN. JOURNAL 
Black Range, and Florida Mountains, and from Silver 
City. In the Organ Mountains it is very common, grow- 
ing at the foot of granitic cliffs or boulders, or sometimes 
on protected slopes, usually in large colonies, and often 
intermingled with Selaginellas. 
3. NOTHOLAENA BONARIENSIS (Willd.) C. Chr. [N. 
ferruginea (Desv.) Hook]. A species of wide distribu- 
tion, extending, as the specific name indicates, as far 
south as Argentina. In New Mexico it has been dis- 
covered only in the arid Organ, Dona Ana, and Florida 
Mountains. It is found in the same environment as 
Bommeria hispida, the plants often forming large clumps. 
4, NOTHOLAENA sINUATA (Sw.) Kaulf. Black Range, 
Bear Mountain, Carrizalillo Mountains, Big Hatchet 
Mountains, Florida Mountains, Organ and San Andreas 
Mountains, Tortugas Mountain, and Guadalupe Moun- 
tains. Reported also from near Las Vegas by Mr. 
Brandegee; but this record seems very doubtful, for 
the locality is far removed from the usual range of the 
species, in a very different floristic region. No other 
fern is better adapted to a xerophytic habitat than this, 
with its coriaceous fronds well protected by imbricated 
scales. On Tortugas Mountain, at an altitude of about 
4000 feet, it receives not more than 8 or 10 inches of 
rain a year. Here it grows on parched limestone rocks, 
but in the Organs it is found about granitic cliffs. 
5. NOTHOLAENA SINUATA INTEGERRIMA Hook. Black 
Range, Big Hatchet Mountains, Tortugas Mountain, 
Organ and San Andreas Mountains, Guadalupe Moun- 
tains, and Lakewood. In general appearance this is 
usually readily distinguishable, but, as pointed out by 
Mr. William R. Maxon, the form of the trichomes is 
essentially the same as in the typical form, consequently 
it cannot well be given specific rank. It differs commonly 
in its small, short, nearly entire pinnae and consequently 
narrower fronds. It ranges from western Texas to_ 
southern Arizona and northern Mexico, often growing 
