50 CONNECTICUT GEOL. AND NAT, HIST. SURVEY. [Bull. 
Marsupella Dumort. 
Plants varying from green to reddish; leaves with a broad 
sinus and bluntly pointed lobes.............. M. emarginata 
Plants varying from green to deep purplish black; leaves 
with a narrow sinus and rounded lobes....... M. Sullivantii 
Marsupella emarginata (Ehrh.) Dumort. 
On damp shaded rocks. May and June. LITCHFIELD: 
Salisbury, Nichols. New Haven: Branford, Evans; Mid- 
dlebury, Harger; Naugatuck, Evans; Oxford, Harger; Wood- 
bridge (1879), J. A. Allen. 
Labrador west to Alaska and south to Virginia, Minnesota, 
and California; Europe; Asia. 
Rer. Evans, 28, 172. 
Marsupella Sullivantii (DeNot.) Evans. Marsupella 
sphacelata of some authors, not (Gieseke) Dumort. M. media 
(Gottsche) Schiffn. 
On shaded rocks. May and June. Harrrorp: Southing- 
ton, Miss Lorenz. New Haven: Hamden and Naugatuck 
(1890), Evans. 
Nova Scotia south to Georgia; Washington; Europe. 
Rer. Evans, 28, 172; 30, 167; 33, 57. 
Nardia S. F. Gray 
1. Growing on sandy soil; rhizoids colorless; leaves (or at 
least the bracts) bordered by a row of thick-walled 
cells; leaf cells otherwise thin-walled throughout or with 
MINUTE: CEI BONES co ceeeee sceac.a aqme enieiods ouseane sie 6 N. crenulata 
Growing on damp rocks or banks; rhizoids more or less 
tinged with purple; leaf cells with distinct trigones.... 2 
2. Leaves bordered by a row of thick-walled cells.......... 
N. crenuliformis 
Leaves not bordered, their cell structure uniform through- 
OUL, WiiGinamdse cee eee yee GSAS edad eewaickes oe N. hyalina 
Nardia crenulata (Sm.) Lindb. Jungermannia crenulata 
Sm. 
On sandy scil, especially along roadsides and shaded paths. 
April-June. Lircurigetp: Cornwall and Litchfield, Under- 
wood. ToLLanp: Bolton, Nichols. FarirFretp: Huntington 
