(149 ) 
Filix montana (Lam.) Underw. (Cystopter’s montana 
Bernh.) Klondike-Indian Divide (Tarleton). 
Dryopteris fragrans (L..) Schott. Dawson; Marsh Lake 
(Williams); 50 miles above Stewart River (Tarleton). 
Phegopteris Dryopteris (L.) Fee; 50 miles above Stewart 
River (Tarleton). 
Phegopteris Robertiana (Hoffm.) A. Br. Dawson, and 
near mouth of Klondike (Williams). 
Family EQuisETACEAE. 
Equisetum sylvaticum L. Foot of Lake Lindeman (Wil- 
liams). 
Family LycopopiAcEAE. 
Lycopodium Selago L. Lindeman (Williams); Klondike- 
Indian Divide (Tarleton). 
Lycopodium annotinum L. Lindeman (Williams) ; 50 miles 
above Stewart River (Tarleton). 
Lycopodium alpinum L. Lindeman (Williams); Klon- 
dike-Indian Divide (Tarleton). 
Lycopodium clavatum L. Lindeman (Williams). 
Family SELAGINELLACEAE. 
Selaginella rupestris (L.) Spring. Mountain side, Daw- 
son (Williams; Tarleton). 
Selaginella selaginoides (L..) Link. Lindeman (Williams). 
4. An Enumeration of the Flowering Plants Collected by R. S. 
Williams and by J. B. Tarleton. 
By N. Ll. BRITTON AND P. A. RYDBERG. 
The collection of specimens made by Mr. J. B. Tarleton 
in the valley of the Yukon during the summer of 1899 is the 
property of the United States National Museum. It supple- 
ments that made by Mr. Williams by a considerable number 
of species and the specimens have in nearly all cases been 
ample enough to permit a duplicate to be taken for the 
Garden Herbarium; the types of all the species proposed as 
new have been so divided. 
