MAXON—STUDIES OF TROPICAL AMERICAN FERNS, 141 
chaff, which, though attenuate, is never hair-pointed, in the shape and position of 
its sori (these longer and much nearer the midvein), in its thin rather than decidedly 
coriaceous texture, and usually in the character of its margins. The reduced lower 
pinne also are broadly cuneate and more or 
less flabelliform, never auriculate-cordate as 
in A. resiliens. 
The following specimens have been ex- 
amined: 
Cusa: Ad rupes umbrosas muscosas, ad 
Embarcadero del Caminar, Poeppig 
(M). Near Nouvelle Sophie, on ver- 
tical rocks and ledges, sides of the 
Farallones, October 8, 1859, Wright 
1042 (E). Sierra Cubitas, Cama- 
guey, east pass, at mouth of cave, 
Shafer 446 (N). ‘‘Posesion de 
Starck,’’ southeast of Jaguey, Ya- 
teras, Oriente, alt. about 500 meters, 
in crevices of partially shaded preci- 
pice, Mazon 4433 (N). . Finca Las 
Gracias, Yateras, Oriente, alt. 500 
meters, in clefts of small rock ledges 
in forest, Mazon 4497 (N). 
Bermupa: Limestone sinks or shaded 
ledges, several localities, Goode 
(M, N); Kemp (Y); Maxon (G, M); 
Farlow (G); Gilbert (G, Y, N, Gil- 
bert); Howe (Y); Harshberger (N); 
S. Brown & Britton 29 (N). 
Fioripa: Shaded rocks, Appalachicola River, near Aspalaga, Curtis 3720* (Y, 
N, P, E, M)'. Rocky woods near Istachatta, Curtiss 5966 (Y, N, M, P). 
Limestone rocks around sink holes, Ocala, Gilbert (N); Underwood 132 (N). 
ColumbiaCounty, Hitchcock(M). In- 
dian River, Miss Reynolds in 1878(M). 
Sumter and Marion counties, in 1879, 
with A. resiliens intermixed, J. D. 
Smith (N). 
7. Asplenium vespertinum Maxon, Bull. 
Torrey Club 27: 200.1900. Ficure 8. 
Type LocaLity: San Miguel Mountain, near 
National City, San Diego County, California 
(Laura F. Kimball). 
DistRiBUTION: Southern California and 
Lower California. 
Except for the single locality in Lower 
California, Asplenium vespertinum is known 
only from the mountains of southern Cali- 
fornia. It has a certain relationship to 
A. blepharodes, but is easily distinguished by its differently shaped crenations, shorter 
and more numerous sori, and nonciliate indusia. 
Fia. 2.—Asplenium heterochroum. Collected 
in Bermuda by Gilbert. Scale 2. 
Fia. 3.—Asplenium vespertinum. Part of type 
collection. Scale 2. 
1 In several herbaria this number is partly A. resiliens. 
70856°—13——2 
