96 
Cheney and True—Flora of Madison and Vicinity. 
489. P. Virginianum ) L. 
Rich woods east of Lake Mendota. Local. 
490. P. sagittatum , L. Arrow-leaved tear-thumb. 
In marsh east of Lake Monona. 
491. P. dumetorum , L., var. scandens, Gray. Climbing’ 
false buckwheat. 
Along railroads and on newly cleared land. 
Eagotyrum, Tourn. Buckwheat. 
492. F. esculentum, Moench. Buckwheat. 
Along railroads and in fields after cultivation. 
Aristolochiace^e. (Birthwort Family.) 
As arum, Tourn. Asarabacca. Wild ginger. 
493. *A. Canadense , L. 
In low woods northeast of Lake Wabesa. Rare. 
SANTALACE^E. (SANDALWOOD FAMILY.) 
Gomandra, Nutt. Bastard toad-flax. 
494. C. umbellata , Nutt. 
Dry ground. Not common. 
Euphorbiace^e. (Spurge Family.) 
Euphorbia, L. Spurge. 
495. E. serpyllifolia , Pers. 
Along railroads. Not common. 
496. E. glyptosperma , Engelm. 
Thin soil. Common. 
497. E. maculata , L. 
Along railroads and on dry hills. Everywhere 
very abundant. 
498. *E. humistrata , Engelm. 
With E. maculata. Common. 
499. *E. Preslii , Guss. 
Along railroads. Not so common as E. maculata 
or E. humistrata. 
