“Mr. Tuckerman, on some Plants of New England. 47 
changes the specific character “ quinquefariis” to “about five 
rows.” In this view there is nothing to distinguish our variety 
but aslightly dwarf habit, which is just as noticeable in L. den- 
droideum, when it occurs in alpine situations, and indeed in most 
plants. I have not, however, as yet observed our plants to vary 
in this respect. It seems impossible that our Lycopodium should 
be the L. sabinezefolium of Willdenow, for that was referred by 
its discoverer, as well as by its describer, to the different group 
which includes L. complanatum. And it does not seem probable 
that Michaux, recognizing as he did L. annotinum as a Canada 
plant, would have referred a plant, wholly undistinguishable 
from it, to a different species of another section of the genus. 
The figure of Dillenius, cited by Michaux, seems also inapplica- 
ble to our plant in every respect. All my American specimens 
are noticeable for a cartilaginous mucre at the tip of the leaves, 
which is much less conspicuous in the alpine Scottish plant. But 
Wallroth mentions this in his specific character given above. 
The scale seems also to vary in the length of its acumination, and 
the serrulation of the leaves is more or less evident. : 
~ L.inunparom, (L.): caule sut pente, ramis simplicibus 
solitariis erectis apice monostachyis, foliis linearibus sparsis acutis 
integerrimis supra curvis, spica sessili foliosa. _ Willd. Sp. 5, 25, 
Torr. Comp. p. 388.—$. Bigelovii, (mihi): majus, ramis° subra- 
mosis elongatis, foliis acuminatis sparsim denticulatis s. integris. 
I. Carolinianum, Bigel. Fl. Bost. p. 384.—y. alopecuroide 
(mihi): caule ramisque ut @. foliis lineari-subulatis basi sparsim- 
que ‘ciliato-dentatis. L. alopecuroides, L. Sp. p. 1565, Dill. 
Muse. p. A5A, (§ Ic.) Clayt. & Gronov. Fi. Virg. edit. 2, p. 168. 
- Hab. («.) Swamps; Plainfield, Dr. Porter ; Topsfield, Oakes ; 
New York, Macrae.—(3.) Wet sandy margins of ponds; Plymouth, 
Oakes and Tuckerman ; (also New Jersey?)—(7-) Florida, Tor- 
tey. The two species, L. inundatum and L. alopecuroides, seem 
to have been originally distinguished by Linneus, mainly on ac- 
count of the ciliate-denticulation of the leaves in the one plant, 
the other being considered to possess leaves integerrima, as entire 
as possible. ‘With respect to this character, it appears that many 
other botanists have not taken the same view as Linneeus, though 
the word in question is retained by most of our authorities. Vail- 
lant, Dillenius, Haller, Necker, Weber, and Hooker, (Brit. Fl. 1, 
452,) all either omit to notice this character, or have particularly 
