Howe : Preliminary notes on the genus Usnea 



319 



H 



, Mrs. Z. A, Carter^ Aug. 6, 'oi, Lake Winnepesaukee, N. 



This condition is mentioned by Tuckerman. 



U. angtdata seems to have a range somewhat coextensive with 



the following species, U. trichodea, though limited more closely 



to the Austral zone. In fact, it is only poorly developed, as I 



have observed it, in the Canadian coniferous "islands," where 



Figure B. Map showing distribution of Usnea angtdata in New England 



* This even suggests U, cavernosa Tuck. 



