Additions 
AND CoRKr:CTIONS. 
Page 7 line 1 1 , under Athyrium reaJ leaves pinnate-2- 
pinnate. 
9 O. vulgatum, collected near Cabin John Md., 
by F. J, Tyler ; at Great Falls and Chesapeake 
Beach by J. H. Painter. 
lol. lo, read B. virginianum (L.) Svv. 
13 Insert after neglectum : 
XXXX Sterile leaf -segment pahnately divided, 
5. B. lanceolatum (S. G. Gmelin) Angstr. 
Osmunda lanceolata S. G. Gmel. 1768. 
Nov. Com. Ac. Petr. 12 : 516. t. ii. f. 2. 
JBotrychlicm lariceolatum Angstr. 1854. 
Bot. Not. 68. Eaton, Ferns N. Am. i : 
133 : in Gray, Man. 694. Underw. in 
* 111. Fl. 1:4*^; Nat. Ferns 71 ; in Britt. 
Man. 3. C/^//£?, Ferns 59. ^Fa/^r^, Ferns 
320. 
Plants T dm. or higher ; the divisions of the ster- 
ile segment pinnate— 2-pinnatifid, spreading, lobes 
acute ; midveins of the divisions continuous ; fert- 
ile segment short- stalked, slightly exceeding the 
sterile one, 2--3-pinnate. 
Collected near Wiele, Va., by P. Bartsch, 
74 
