36 
Rhodora M [MARCH 
(Aspidium acrostichoides, var. Gray; Polystichum acro- 
stichoides, var. Schweinitzii Small) 
[This change is required by Articles 48 and 49 of the 
Vienna Rules, which necessitate the adoption in the 
varietal category of the name incisum, this being the 
earliest varietal designation of the plant in question. 
The synonymy of this plant is as follows: Aspidiwm 
Schweinitzii Beck, Bot. N. and Mid. St. 449 (1833). 
A. acrostichoides, 8. incisum Gray, Ann. Lyc. N. Y. 
iii. 238 (1835). Polystichum acrostichoides, var. incisum 
Gray, Man. 632 (1848). P. acrostichoides, var. Schwein- 
itzii (Beck) Small, Bull. Torr. Bot. Club, xx. 464 (1893); 
Robinson & Fernald in Gray, Man. ed. 7, 40 (1908), 
by nomenclatorial error.] 
Page 41, line 62; omit: ; reported from Mo. 
[Mr. B. F. Bush writes that the specimens which 
formed the basis of the report of Aspidium simulatum 
from Missouri were incorrectly determined.] 
Page 42, line 18; after Aug. insert: Forma DavkENrÓnmTI (Floyd) 
Eastman has some of the pinnae cristate-forked at the 
tip.— E. Mass. (Floyd) and probably elsewhere. 
Page 43, line 23; for Hook. read Gray. 
[The combination Aspidium spinulosum, var. dilatatum 
(Hoffm.) was merely implied by Hooker, Brit. Fl. 444 
(1830). It seems to have been first actually made by 
Gray, Man. ed. 2, 597 (1856).] 
line 30; after tripinnate insert: , less enduring 
line 32; for Concord, Mass. (Purdie). read Concord (Pur- 
die) and Lexington (W. Faxon), Mass. 
Page 45, line 8; for westw. to Minn. read westw. to Mo. and Minn. 
line 22; for 1-3 read 1-5 
line 29; for Mett. read (Willd.) Mett. 
Page 46, line 22; over the first A of OSMUNDACEAE insert a grave 
accent. 
Page 48, line 31; for Lasch read (Lasch) Milde 
Page 49, line 4; for var. read forma 
Page 50, line 35; after southw. insert: naturalized on Pecowsic 
Brook and Connecticut River near Springfield, Mass. 
(Mrs. Owen). 
