482 SHERFF: A NEW VARIETY OF' CAREX LUPULINA 
has made it impossible to secure more material for experimental 
work with achenes and stolons, as all of the sedges were destroyed. 
The original specimens have been deposited with the herbarium 
of the Missouri Botanical Garden (type), the Gray Herbarium, 
and the herbarium of the Field Museum. 
The new plant is here introduced as a formal variety and given 
the name 
Carex lupulina albomarginata var. nov. 
Carex formae typicae dissimilis, foliis et squamis albomargina- 
tis, perigyniis albolineatis. 
To Dr. Wm. Trelease of the Missouri Botanical Garden and 
to Dr. J. M. Greenman of the Field Museum the writer’s sincere 
thanks are due for a critical examination of material, also to 
Professor C. E. Barr of Albion College for the careful execution of 
the accompanying plate of illustrations. 
CxHIcaGo, ILL. 
Explanation of plate 26 
A, upper portion of mature plant; B, lower portion; C, portion of leaf; D, 
perigynium; E, achene; F, pistillate scale; G, staminate scale. 
