84 AMERICAN FERN JOURNAL 
TECTARIA TRIFOLIATA (L.) Cav. Montell, Uvalde 
County, 12328. 
This, one of the rarest of Texas ferns, was found 
growing near the entrance to a small, dry limestone 
cave. The opening is a narrow fissure in horizontal 
limestone strata on a level hilltop, and the plants were 
growing on a dry ledge below it, where they received 
direct sunlight only during a short time each day, 
and almost complete protection from the hot winds 
and scorching sun in summer and the extreme cold of 
winter. A specimen in the herbarium of the Missouri 
Botanical Garden, collected by Lindheimer in 1847, 
“At the entrance of a dry limestone cave,” near New 
Braunfels, is the only other collection from Texas, 
so far as I am aware. 
POLYSTICHUM ACROSTICHOIDES (Michx.) Schott. Liv- 
ingston, Polk County, 5160, 5253; Houston, Harris 
County, 11995; Huntsville, Walker County, 12055; 
Marshall, Harrison County; San Augustine, San Aug- 
ustine County; Fletcher, Hardin County. 
On rich wooded hillsides or steep, shaded banks of 
ravines. 
Dryopreris THEtyprerts (L.) Gray. Liberty, Lib- 
erty County, 8554; Grapeland, Houston County, 13183. 
In open, sandy bogs. Apparently rather rare and 
restricted. 
Drropreris Normauis C. Chr. (Aspidium patens 
D. C. Eaton, not Swartz.) Columbia, Brazoria County, 
9014; Brazoria, Brazoria County, 5111; Livingston, 
Polk County, 5167; San Augustine, San Augustine 
County, 7898; Marshall, Harrison County, 8646; 
Pledger, Matagorda County, 9699; Lacey’s Ranch, 
Kerr County, 9979 ; Telegraph, Kimble County, 10940; 
Devils River, Valverde County, 11380; Dayton, Lib- 
erty County, 11464; Blanco, Blanco County, 11570; 
