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Stictopora incisurata. 
Page 241. 
A part of a frond, natural size, showing its form and manner of growth. 
Hamilton group. Near Muttonville, township of North Bristol, Ontario county, N. Y. 
An enlargement, showing decidedly serrulate margins. (X 0.) 
Hamilton group. Kashong creek, Bellona, Yates county, N. Y. 
An enlargement from another frond, showing irregularly disposed, oblique cell apertures, 
originally described as Stictopora obliqua. (X 6.) » 
Hamilton group. Near Lodi Landing, Seneca Lake, N. Y. 
An enlargement of a section, showing the intercellular vesicles. (X 6.) 
Hamilton group. Lodi Landing, N. Y. 
An enlargement, showing the rootlets and pedicel of a frond. All the bases observed have a 
similar appearance to this one. (X 6.) 
An enlargement, showing very oblique cell apertures, disposed in essentially parallel longitudi¬ 
nal rows. (X 6.) 
Hamilton group. Fall-brook, four miles east of Canandaigua Lake, N. Y. 
An enlargement of a narrow branch, showing oval cell apertures, where the ranges are sep¬ 
arated by strong strife. (X 6.) 
Hamilton group. Near Muttonville, North Bristol township, Ontario county, N. Y. 
An enlargement, showing broad, flattened, longitudinal striations. (X 6.) 
Hamilton group. Fall-brook, Ontario county, N. Y. 
An enlargement, showing the cell apertures very closely disposed. (X 6.) 
Hamilton group. In the vicinity of Geneseo, N. Y. 
A still farther enlargement, showing more distinctly the characters illustrated in the preceding 
figure. (X 18.) 
An enlargement, showing the most common appearance of the surface of a frond. (X 6.) 
Hamilton group. Near Lodi Landing, Seneca lake, N. Y. 
An enlargement of a broad frond having simple longitudinal striations. (X 6.) 
Hamilton group. Norton's Landing, Cayuga lake, N. Y. 
An enlargement, showing lunate projections from the outer margins of the peristomes. (X 18.) 
Hamilton group Kashong creek, Bellona, Yates county, N. Y. 
A still farther enlargement of one cell aperture. (X 80.) 
An enlargement, showing regularly disposed oblique cell apertures. (X 6.) 
An enlargement, showing prominent denticulated projections from the posterior portion of the 
cell apertures. (X 18.) 
Hamilton group. Near Muttonville, North Bristol township, Ontario county, N. Y. 
A fragment, natural size. 
Enlargements of transverse sections of different fronds. (X 8-) 
Stictopora palmifes. 
Page 255. 
A frond, natural size, showing the base and manner of growth. 
An enlargement from the preceding, showing the broad non-celluliferous margin, the oval cell 
apertures, with slight peristomes, and the nodose longitudinal ridges. (X 18.) 
Hamilton group. Near Pavilion, N. Y. 
