Vol. XI. pp. 39-41 March 13, 1897 



PROCEEDINGS 



BIOLOGICAL SOCIETY OF WASHINGTON 



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DELPHINIUM VIBIDESCEXS AND SAMBUCUS LEIO- 



SPERMA, TWO NEW PLANTS FROM THE 



NORTHWEST COAST. 



BY JOHN B. LEIBERG. 



In the collections of plants recently made by the United States 

 Department of Agriculture in Oregon and Washington occur a 

 red-berried elder which api)arently should be separated from the 

 other known species, and a remarkable larkspur w^ith greenish- 

 l)urple flowers, differing conspicuously in this respect from an}!- 

 other American member of tlie genus. Descriptions of these 

 two ])]ants are given herewith. 



Delphinium viridescens sp. nov. 



Stem 1 to 1.5 meters hiyh from fascicled subfusiform rootn, smooth Ijelow 

 or sometimes minutely pal:)erulent, the upper portion and the inflores- 

 cence dense!}' pubescent witii spreading yellow hairs from glanduhu- 

 flask-shaped bases ; basal an,l t-auline leaves glabrous, thin in texture, 

 semicircular in outline, 8 to 10 centimeters broad, on jietioles 12 to 1(5 

 centimeters long, deeply 5- parted, the divisions o to 5-lobed or cleft ; ui)per 

 cauline leaves pubescent, pinnately 3-parted, the divisions 3 to 7-cleft or 

 broadly lobed, often stalked, diminishing upwards and becoming linear ; 

 inflorescence a strict narrow raceme about 30 centimeters long, in very 

 robust plants reaching a length of 1 meter ; flowers secund or sometimes 

 subdistichous in the raceme, small for the size of tlie plant, on pedicels 

 about 10 millimeters in length ; lower sepals ovate-acuminate, about 8 

 millimeters long and 5 millimeters wide, pilose when young, becoming 

 nearly glabrous in age, brown tinged with dull pur})le ; spur straight, 

 about 1 centimeter long; laminae of lateral petals deeply cleft, densely 

 pilose, about 5 millimeters long and 4 millimeters wide, dull i)ur])le in 

 color, the claws narrow and about 6 millimeters in length ; upper petals 



7— Hioi.. Sof. Wash., Vol. XI, ISUT (3U) 



