116 AMERICAN FERN JOURNAL 
A. Aerial stems evergreen, sometimes freezing down to the ground 
in sever Sree rough to a greater or less degree; cones tipped 
with a rigid po 
‘B. Stems am green; sheaths cylindrical, not dilated upward, 
usually: with two black bands, sometimes entirely black; 
stems rough, tuberculate; not ~ erican. 
. EquiseTuM HYEMALE L.* 
B. Stems yellowish green; sheaths a. dilated upward, 
with a narrow a ack band at the top and frequently with a 
second irregular one below; stems smoothish, only slightly 
tuberculate; widely distributed in America. 
. EquiseruM Larvicatoum A. Br.® 
A. Aerial stems annual, smooth; cones without a point; stems usually 
unbranched, except when broken; sheaths ae dilated up- 
ward, with a narrow black band at the top, rarely with a faint 
second one below; western and southern United States 
. Equisetum KansaANUM Schaffner’ 
Courtney, Mo,. 
A New Station for Scott’s Spleenwort 
CLARA G. MARK 
While on a fern-collecting trip in the southern a park of 
Hocking County, Ohio, last July, the writer found a 
single plant of Scott’s Spleenwort, Asplenium ebenotdes, 
growing on the face of a ledge of sandstone. This 
county is an interesting one botanically and has been 
for years a favorite collecting ground for the botanists 
of central Ohio. Twenty-two years ago Dr. W. A. 
Kellerman collected a plant of this species from a sand- ° 
5 Equisetum HYEMALE L, Sp, Pl, 1062, 1753, 
: lec LaEviaatum A, Braun: Engelm, Am, Journ, Sci, 46: 87, 
844, 
Equisetum hyemale Am. Auct. in large part, not L. 175 
oe setum hyemale intermedium A. A. Eaton, Fern ib 10: 121. 1902 
*Equisrrum Kansanum Schaffner, Contr. Bot. Lab. Ohio State Univ. 
No. Hit Pie 1912. 
um laevigatum A. A. Eaton and Am. Auct. in part, not A, Braun, 
