559 
Carolina, Walter, |. c.; and “ Bosc. Hb: Willd., no. 19422” fide 
Prantl; South Carolina, Michaux; Summerville, S. C., Constance 
G. DuBois, April, 1889; Fernandina, Florida, C. E. Faxon, 1873; 
Manatee, A. P, Garber, March, 1878; Apalachicola, Chapman, 
February, 1883; New Orleans, Louisiana, Drummond, 1832; 
Alexandria, Dr. J. Hale; Jackson, Dr. Ingalls, 1835; Mobile, 
Alabama, Chas. Mohr, 1844; Auburn, L. M. Underwood, March, 
1896; Enterprise, Miss., S. M. Tracy, March, 1897; Houston, 
Texas, E. Hall, March, 1892. This species ranges south into 
Mexico, Caracas, Bolivia, Chile to Argentina, and has been cred- 
ited to « Wet Pine barrens of New Jersey’’ (“ Pursh’’), in Barton’s 
Flora N., of N. America, and Wood’s Class-Book, though this is 
probably a mistake. 
8. OPHIOGLOssuM PALMATUM L., Sp. Pl.1518. 1753; Eaton, Ferns 
of N. Am. 2: 269. «# 8&7. figs. 11-14. 
Chetroglossa palmata Pres|. Suppl. §7. ? 
Plants 2~3 dm. high, bearing several fronds from a thick scaly 
rootstock; petiole 6-20 cm. long, blade 10-20 cm. long, usually 
palmately divided into 2-9 broadly spreading segments, rarely 
simple and lanceolate; basal veins 5-8, repeatedly branching and 
anastomosing, forming long hexagonal areolae without any free 
veinlets; peduncles arising from the petiole and the base of the 
sterile lamina, 1-16, short, 1-2 cm. spike I~3 cm. long; sporangia — 
15-40; spores .06 mm., reticulations angular, striae slightly ele- 
vated. 
A tropical species usually found on palms and palmettos in 
Florida, Caloosahatchee River, Chapman, 1875 ; hummocks of the 
Caloosa River, A: P. Garber, 1878; Indian River, Mary C. Rey- 
nolds, 1879; Chuckalaskee, E. W. Reasoner, 1887; Manatee, L. 
M. Underwood, 1891. Ranging through Mexico, and the West 
Indies, to Brazil. 
Description of Plates. 
Plate 318, Drawn by Mr. Walpole under the supervision of C. L. Pollard. 
Ophioglossum arenarium, n. sp., E. G. Britton. 
Plate 319. Drawn by F. Emil under the supervision of E. G. Britton. Vena- 
tion of fronds inz1. O. vulgatum. 2. O. Engelmanni. 3. 0. arenarium. 4. 0. 
Californicum, 5. O, Alaskanum, 6. O. reticulatum. 7. O. pusillum. 
