. 
88 
Nutt., collected by himself at Marquette, Mich, and apparently 
new to the Flora of Michigan; also a specimen of Crategus 
coccinea, var. macrantha, Dudley, collected by Mr. Poggenburg 
at Fort Montgomery, New York, and flowering specimens of 
Tussilago Farfara, L., collected by Dr. Newberry at Amenia, 
New York. 
Mr. C. F. Cox spoke of the tendency to variation in the genus 
Botrychium, and exhibited five specimens of abnormal BZ. ¢erna- 
tum, var. lunarioides, from northern Vermont, comprising (a) two 
imperfectly developed sterile segments ; (b) one fertile and two 
sterile segments; (c) two large fertile and one sterile segment ; 
(d) one well developed fertile segment with a second, small, fer- 
tile one and a sterile segment; (e) one large fertile segment with 
two smaller fertile and one small sterile segment. 
An exhibition of Microscopical Preparations by the members 
of the Section of Histology and Cryptogamic Botany was then 
a The objects shown were as follows: 
. A fungus fruiting in the cell-walls of Pizus Strobus, by P. 
H. Sea’, CoE: 
2. Section of afungus growing in cord-like masses, 8 - 10 
feet long, in the Dickinson Iron Mine, N. J. The central portion 
of these strings is composed of loosely matted hyphz, enclosed by 
a harder cortex. By N. L. Britton. 
3. Water-pores in the leaves of Fuchsia and 7 a by 
Mrs. Winthrop Cowdin. 
4. Antheridia, archegonia, operculum, annulus and peristome 
of species of Fissidens, Funaria and Barbula. Also prothallia of 
mosses and ferns. Mrs. Britton and Miss Steele. 
5. Tyloses in the rootstock of Aristolochia Serpentaria, show- 
ing protrusions of the parenchyma into a dotted duct, and the 
protrusions containing starch. ; 
6. Branched glandular hairs of tobacco leaf. 
7. Epidermis of Vanilla, each cell containing a tabular 
crystal of calcic oxalate. 
8. Mucilage from the leaves re Nymphea alba, containing 
immense numbers of several species of Bacteria, both Bacillus 
and Micrococcus forms. This mucilage appears to be the zodgleal 
state of these Bacteria. Nos. 5 to 8 by Joseph Schrenk. 
