
ADDENDA. 
with the longitudinal receptacle. Seeds 
numerous, imbricated, linear and alated. 
— Nutt. 
Americana 1, S. simple, pubescent; leaves lanceolate; raceme 
terminal ; flowers alternate.— Willd. and Pursh. 
Icon. Lam. Illustr. 520. Pluk. Mant. t. 348. 
2. 
In Jersey, within ten miles of this city; Mr. Collins. 
— 
To the genus Orobanche, No. 293. vol. 2. p. 49, 
add the following species, which is not an un- 
common plant in our neighbourhood, but has 
been inadvertently left out in my manuscript. _ 
No. 2. Orobanche uniflora: scape naked, one- 
flowered; calix without bractes; corolla recury- 
ed.— Willd. and Pursh. 
Icon. Pluk. Mant. t. 348. f. 3. 
One-flowered Orobanche. 
A very singular and handsome parasitic plant, growing in 
bunches of several stems together. Whole plant of a snow 
white hue, and resembles an artificial wax flower. In fertile 
woods. Perennial. June, July. 
— oe 
TETRADYNAMIA, SILIQULOSA. 
The following common plant has been inadver- 
tently omitted in its proper place: 
401. Cardamine Pennsylvanica; glabrous, bran- 
ched; leaves pinnate; folioles nearly roundish, 
oblong, obtuse, angular-dentate; siliques nar- 
row, erect.—Willd. and Pursh. 

