83 
P. lapathifolium L. 
GF,*" ' ^ . 
P. lap.,var. salicifolium 8ibth, 
vVeed, lops, \Wi V, Gi"^ “ 
X P. sc^rum Moenqh. 
^ QY': 81 r; U1. Lpt, TC . GF, 30 . ^ ^ 
P. natans (Michx.)Feton, 
Hnit,3F,KP,B?S, 
P. H^^dropiper L. 
Tops, 8tJ';'GF,‘l3c"^, 
P. H 3 !^dr.,var, pro^ectum Stanf, 
'P. Persicaria L, . . ^ 
0oral"li'.'t 0 hli3.and Bofl. ,3G, 8t J, GF, Torb ‘ 
Trep.-GGardV ’ V 
S 
P. Kaii Babington ^ 
8tGVPaP, 8EA f J}^ 
P. acadiense j^'ern. (N.8.) 
P. boreale (Lange) Small If x/ 
. 8t4nth*; 8C7l3arrect^l, imiikl, ^ 
^Wcf 
