196 
B. Lunaria, B. boreale and B. matricariaefolium with that of B. sim- 
plex, and makes the statement that in the three former species the 
tips of both the sterile and fertile portions are bent downward. 
This, however, does not agree with my examinations, nor with his 
own illustrations, as his figure of the bud of B. Lunaria clearly shows. 
In that figure the apex of the fertile frond is not bent down but ful- 
ly agrees with my description and examinations. ‘This species is 
credited to Unalaska (Milde) and so is included in our list of North 
American Botrychiums, but I do not know of any American speci- 
mens in this country. 
In B. MATRICARIAEFOLIUM the apex of the fertile frond is bent 
downward in the bud toward the sterile frond, which clasps it with 
its side divisions and bends its apex downward over the whole. 
Figure 6. The common stalk shows a greater development than in 
B. simplex, or B. Lunaria, and this significant development indicates 
the relative position of the sterile frond in living specimens of these 
three species. 
I have already remarked on the resemblance of the bud-form in 
this species during its earlier stages of growth to the matured bud- 
forms in B. simplex and B. Lunaria, but the tendency toward its 
describéd form may be detected from the beginning. In very robust 
‘specimens, both portions of the bud are sometimes too clumsy to 
conform exactly to the symmetrical arrangement of the typical form, 
but in all such cases the apex of both fronds turn downward in con- 
formity with the proper arrangement. 
' In B, LanceoLatum both the fertile and sterile portions of the 
bud are curved and bent downward their whole length. The fertile 
frond is recurved and lies with its outer surface pressed close to the 
common stalk. The sterile frond is turned downward its whole 
length, its segments spreading over, and covering all of the longer 
fertile frond but the apex, which protrudes slightly beyond. Figure 7. 
The bud-form in this species bears some resemblance to the 
bud in &. Virginianum, but its perfect smoothness and longer 
fertile portion are sufficient marks of distinction even if others did 
not exist. It is interesting to trace the development of the bud in 
this species from the beginning when a mere slit in its apex, and only 
a very slight curvature of the two portions indicates the direction in 
which it is passing to its true form. 
In B. TERNaTUM, and its varieties, the bud is very short and 
shaggy, the upper portion being so thickly covered with a hairy pu- 
bescence as to obscure the arrangement of the two fronds completely. 
This pubescence is wholly confined to the upper portion of the bud, 
the stalk remaining perfectly smooth. It is remarkable that in the 
huge California forms, some of which are nearly two feet high, and 
which, in part at least, belong to Milde’s “ Forma Australasiaticum,” 
differing only in being less serrate, the buds are less shaggy, and the 
arrangement of the two portions may be seen more readily, but the 
plants themselves are more pubescent, and retain their pubescence 
longer than any that I have seen from other localities. 
Milde states that in this species the apex of the fertile panicle is 
hot only bent downward in the bud, but that the. “ip ts again bent 
