DESCRIBED SPECIES OF BoTRYCHIUM 45 
Botrychium subcarnosum Wall. Cat. no. 49 (nomen nudum) ; 
Hook. & Grev. Bot. Misc. 3: 222. 1833. 
India, Burma, Society Islands ?, Samoa ?. 
Botrychium daucifolium 3 Japonicum Prantl = B. Jaronicum. 
BotrRYcHIUM DECOMPOsITUM Mart. & Gal. Mem. Acad. Sci, 
Bruxelles, 15 -—(15). p/. 7. 1842.— Mexico, 
Botrychium dichronum sp. nov. 
A moderately tall plant, allied to B. Virginianum, with sessile 
sterile lamina and persistent leaf of the preceding year. Roots 
fleshy : stem 15-20 cm. long, smooth: sterile lamina broadly 
triangular, 20 cm. wide, 15 cm. long, tripinnatifid with about five 
pairs of nearly opposite gradually diminishing pinnae, the lower- 
most with longer pinnules on the outer side and inclined forward 
at an angle; pinnules 8-10 on each side of a winged rachis, 
alternate, cut nearly to the midrib into 6-10 segments set at an 
angle of 45° with the rachis, the lower ones slightly narrowed at 
the base, and 3-5-toothed at the apex, all gradually simpler 
towards the apex of the lamina: panicle * triangular, spreading, 3 
cm. or more long ona slender stalk 4 cm. or more long, 2—3- 
pinnate. 
Jamaica: Morce’s Gap, altitude 1500 m., 7 Feb. 1900. W. 
N. Clute, 96. (Type in herb. Underwood.) 
This plant was distributed as &. Virgintanum with which it had 
been previously confounded and which it resembles rather closely, 
but differs in its peculiar short panicle, in the cutting of the 
lamina, and especially in its persistent sterile leaf which remains 
fresh until the new one is fully developed, the plant thus having 
two growing leaves at the time of maturity to which allusion is 
made in the specific name. This peculiar habit has been men- 
tioned by both Jenman and Clute, who appear to be the only per- 
sons who have reported it from Jamaica. Its seasonal appearance 
also is peculiar. 
Borrycuium pissectuMm Spreng. Anleit. 3: 172. 1804. 
Botrychium ternatum, var. dissectum D. C. Eaton, Ferns N. 
Au 4s 150. 01. 20. f..7, 1578. 
New England to Virginia, Ohio, Indiana and Kentucky. 
While this species undoubtedly approaches in some of its forms 
to B. obliquum, we have yet to see a specimen that could not readily 
* On the type specimen the sporophyll is not quite mature and the measurement. 
may be a trifle too small for an average mature plant. 
