1919] Evans,— Notes on New England Hepaticae,—XV 165 
abruptly from the line of attachment, but many deviations from this 
condition are to be expected, even on an individual stem. 
The leaf-cells agree pretty closely with those of N. hyalina in their 
measurements. A series of about fourteen specimens, both European 
Figs. 10-14. Narpra oBovaTA (Nees) Lindb. 
10, 11. Stems with male bracts and perianths, dorsal view, X 15. 12. 
Sterile stem, dorsal view, X 15. 13. Cells from the median portion of a leaf, 
X 265. 14. Marginal cells from another leaf of the same specimen, X 265. 
Rhizoids and the verruculae on the leaf-cells are not shown. Fig. 10 was 
drawn from a specimen collected at Thompson's Falls, White Mountains, 
New Hampshire, by L. M. Underwood, and distributed by Miss Haynes, 
Amer. Hep. 6; the remaining figures were drawn from a specimen collected 
in Oakes Gulf, Mt. Washington, New Hampshire, by the writer, and distributed 
by Underwood & Cook, Hep. Amer. 112, as Jungermannia cordifolia, 
and North American, gave the following average dimensions: margi- 
nal cells, 15-36 u; median cells, 27-49 X 22-39 u. The trigones can 
