INDEX. 



219 



PAGE 



POTENTILLA— 



Pennsylvanica bipinnatifida Torr. & Gray 



= P. bipinnatifida 99 



Pennsylvanica eonferta Gray:= P. Pennsyl- 

 vanica arachnoidea 98 



Pennsylvanica communis Torr. & Gray = 



P. Pennsylvanica 96 



Pennsylvanica glabrata Wats. = P. gla- 



brella 94 



Pennsylvanica Hippiana Torr. & Gray = 



P. Hippiana 113 



Pennsylvanica Missourica Lehm. = P. 



Pennsylvanica 96 



Pennsylvanica pulcherrima Torr. & Gray = 



(?) P. pulcherrima 66 



Pen n sylvanica strigosa Pur sh 97 



pentandra Engelm., ISTo. 20 12, 23, 47 



pentaphylla Eicht 76 



Pickeringii Greeue= Horkelia Pickeringii 145 



pilosa Macoun = P. inclinata 50 



pilosa DC 50 



pinnatisecta (Wats.) A. Nelson, 'No. 92. 



31, 106 



Plattensis JSTutt., No. 93 26, 31, 108 



Plattensis leucophylla Greene = P. Breweri 



expansa 116 



Pringlei Wats., No. 66 29, 83 



procumbens Clairv. = Sibbaldia procum- 



bens 186 



procumbens Sibth., No. 10 23, 38 



prostrata Rottb. = P. nivea prostrata 87 



pseudorupestris Eydb. = Drymocallis pseu- 



dorupestris 194 



pseudosericea Rydb., No. 79 29, 98 



puberula Qveene = Horkelia, puberula... 131 



pulchella Meeban = P. Vahliana 90 



pulchella E. Br., No. 73 29, 92 



pulchella Sprengel = P. concinna 52 



pulcberrima Lehm., No. 43 26, 65 



pulcherrima Rydb. = P. bipinnatifida 



platyloba 100 



PAGE 



POTENTILLA— 



pumila Poir., No. 8 23, 37 



purpurascens Greene =: Horkelia purpur- 



ascens 143 



purpurascens pinetorum Coville = Horkelia 



pinetorum 143 



quinquefoliaRydb., No. 57 24, 27, 76 



ramulosa Rydb., No. 31 13, 25, 56 



ranunculoides Humb. & BonpL, No. 33. 



25, 57 



Ranunculus Lange, No. 37 25, 62, 206 



recta L., No. 51 27, 71 



recta Nutt. = P. Nuttallii 70 



recta Willd. = P. sulphurea 72 



recta obscura Koch = P. recta 72 



recta pallida Lehm. = P. sulphurea 72 



recta sulphurea LaPeyr = P. sulphurea... 72 



reflexa Greene = Drymocallis reflexa 203 



reptans L., No. 9 23, 38 



reptans Willd. = P. procumbens 38 



retusa Retz = (?) Sibbaldiopsis triden- 



tata 187 



rhomboidea Rydb. = Drymocallis rhomb- 



oidea 203 



RichardiiLehm., No. 94 31, 109 



rigida Newberry = P. etomentosa 64 



rigida Nutt. = P. Nuttallii 70 



rigida Wall 64, 70 



rigida Nutt. = 7. Nuttallii 70 



rivalis Nutt., No. 15 11, 23, 42 



rivalis Rothrock = P. Monspeliensis 46 



rivalis millegrana Torr. = P. biennis 44 



rivalis millegrana Wats. = P. leucocarpa. 43 

 rivalis pentandra Wats. = P. pentandra. 48 



Robbinsiana Oakes, No. 64 28, 82 



rubens Rydb. = P. maculata 58 



rubra Haller = Comarum palustre 163 



rubra Willd. = P. comarioides 34 



EUBRICAULES §16 21, 30, 100 



nbricaulis Dougl. = P. Pennsylvanica 



Btrigosa 97 



