INDEX TO THE SPECIES. 183 
Polygonum— 
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(RID CHATUTUUTIU eesataletetels aaetaleeteletelteletefta steel states «ies 84 
PUNCTATUM ECILIATUM ............-.-++-- 89 
PUNCTATUM LEPTOSTACHYUM ............ 89 
PUNOPATUM. ROBUSDIOR | .csesemsccceccn es 89 
PUSMUAIM aor. tis carsisivinsta seiisinle dates qos sabiteatias 86 
RAMOSISSIMUM: cocci smcsceeteesssee ses esasna 114 
RAMOSISSIMUM PROLIFICUM .............-+ 114 
MAST squrs eh sale tees Gite Saas ae RR Ores 98 
SAGUPPA TOMY score x's aectcis saris atotajainicersiainaieys siete 162 
sagittatum var. Americanum ..........0++- 162 
sagitiatum var. boreale ................0..++ 162 
sagittatum var. pubescens ........0..0..0005 162 
SQISUGULOSUMY sanaiowscone seme eases ones se n= 102 
BANWeAURCHIGNSE tnt skae miscteae ter cettania siete 120 
BOAINDEIND! vocea soc ce acco tisclonscccurmsecestnane 152 
SGHE UME cos. citer ats srentawenietenente ane scime 72 
SegetUm VAL. GJENUINUM ..........2.0.220 000s 72 
SETA OBUME aches ctotua nee eae testi ote seine 76 
SECASTENSE: os, 24s eas snes ceeae acca ee tens 96 
Polygonum— 
PAGE. 
SPERULUULE Mat eects tecone caress ecsess eer sees 48 
SPERGULARIAEFORME ..........s000ssese0ee. 130 
BEHICEUNUaacase iwc see wee te ne oscosone at aaecen ers 86 
TENUE! ioc deasssings ac acne visvin8 sicniedie tesa semen 122 
LOM Bosc cacrys ssecn Sa setact eae sce aes seeeaakine wie eee 118 
tEenUe VAT. COMMUNE .....-.-..000-22-00- 118, 122 
Lene Var. LatifOluUme<.. cs nce seen cena ee ates 118 
tenue VAL. MICTOSPETMUM ....2...0000eee ee 124 
THR ELA RTUM sia ay aecesceene scievetceamenae es 16 
CEPT OSIIE |e csesicdina seu ssoncdesee Meee ere 44 
POPPOYE <ckicc05 wien css «ease ase caves creck emoect 128 
UWE VEULATUTE sce sasauee oe doceeancee mene nee 55 
DEN GOLUM sci os azesasnvexcs veer easeeeeee mete. 80 
WIRGINTANUME So 5 sieciizn scat vesemeate re torsos 92 
WIVIPAR UM) 2-5 iecrestesesencases oneeecmien eet 30 
viviparum var. subacaule .............0008- 30 
WATSON: seh descnesccs cesaccueccasee meee 138 
ZOUCCARENTIG Oooo access ra cree ner ee aeceeeee 158 
