576 
streams, May 13,1889. Mr. Suksdorf at this time obtained bulbs which he has since 
grown in his garden, and he has thus obtained most excellent fruit. 
We take great pleasure in dedicating this genus to John B. Leiberg, of Hope, 
Idaho, a most excellent collector and one who has done much in developing our 
knowledge of the flora of Idaho, Washington, and Oregon. Mr. Leiberg writes as 
follows: 
“The plant, in the region where I collected it, occupies the same place in the flora 
of the heavily forested region of the lower white pine zone as do the tuberous-rooted, 
early-flowering species of Peucedanum on the open plains of the Columbia, in Ore- 
gon, Washington, and Idaho; that is to say, it is an early-flowering species, coming 
into bloom very soon after the snow leaves, preferring basaltic formations, or soils 
derived from basaltic rocks. Wherever it grows it appears in such abundance that 
at the time of flowering it quite hides all other species.” 
EXPLANATION OF PLATE.—Fig. 1, the plant, natural size; fig. 2, an umbellet of flowers; fig. 3, fruit 
as seen from the side; fig. 4, carpel as seen from the back; fig. 5, cross section of the fruit. 
