420 
localities where but one parent could be formed. Nor is it strange 
that a hybrid should be found to have a somewhat wide distribu- 
tion. Carex arctata < castanea (C. Knieskernit) occurs in New 
York, Minnesota and upon the Canadian side of Lake Superior; 
and I may add that C. gracillima * hirsuta was found at an 
early day, according to Dewey (Sill. Journ. xi. 31 5),at Newburgh, 
New York, and at Stockbridge, Mass., although it has been re- 
corded by Torrey and subsequent writers as having been collected 
only at Phillipstown, near the Hudson. It is strange, however, 
if C. @stivalis is the missing parent of this beautiful carex, that the 
beak should be bifid, for both C. gracillima and C. estivalis have 
entire orifices. 
This is the third hybrid which seems to have had Carex gracil- 
lima for its mother. It is interesting to note, also, that this 
species often develops its perigynia apparently without the aid of 
pollination. 
CAREX STIVALIS, while one of our rarer Carices, has pe 
a variety of names. Its first name was Carex Darlingtoni given 
by Schweinitz, but the name was not published until Dr. Boott 
recorded it, as a synonym, in 1858. The original of this is now 
in the possession of the Philadelphia Academy of Sciences, and 
the ticket, in Schweinitz’s hand, says that Darlington collected 
the plant upon the Pocono Mountains of northern Pennsylvania. 
M. A. Curtis also gave it the name Carex tabularia in his herbar- 
ium, and this name was also published as a synonym by Boott. 
A specimen bearing this name, and coming from Boott, is in the 
Torrey Herbarium. Kunze called the plant Carex Rugeliana in 
his “Supplemente zu Schkuhr’s Riedgrisern,” which was published 
at‘intervals from 1840 to 1850. I am not sure of the date of this 
name, but it is held to be later than Curtis’ Carex estivalis, which 
Dr. Gray published in 1842. Finally, Olney, in his Exsiccate, 
1871, made it a variety of Carex virescens, with which it has no 
immediate affinity. The affinity of the plant is with Carex gracil- 
lima, of which John Carey thought, “if not distinct, it is a moun- 
tain form.” Dewey confounded it with Carex arctata and Carex 
sylvatica. But it is abundantly distinct. Its northernmost station | 
is Saddle Mountain, in western Massachusetts, where Dewey found oe 
it in 1828, at 800 feet above the base of the mountain. ens 
