766 



METASPERMAE OF THE MINNESOTA VALLEY. 



Aralia racemosa LINN 387 



trifolia (LiNN.) 385 



Araliaceae 385 



Araliophyllum 385 



Arbutus filiform is LAM. , 407 



thymifolia AIT 407 



uva-ursi LINN 408 



Archangelica HOFFM 391 



atropurpurea HOFFM 392 



hirsutaT. and G 392 



Archemora DC 391 



rigidaDC 391 



ARCHICHLAMYDEAE 176 



Arctogeron DC 515 



Arctostaphylos ADANS 408 



ArctostaphylosofflcinalisWiM. 408 



Arctostaphylos uva-ursi (LiNN.) 408 



A remonia NECK 302 



Arenaria buxifolia POIR 224 



lateriflora LINN 224 



pennsylvanica MUHL. .. 224 



Arethusa LINN 169 



Arethusa bulbosa LINN 169 



ophioglossoides LINN ... 169 



spicata WALT 176 



Aretia LINN 411 



occidentalis MAcM.. .. 411 



Argyrochaeta CAV 538 



Aria HOST 283 



Arietinum BECK , . 162 



americanum BECK 164 



Arisaema MART 132 



Arisaema atrorubens BLUME . . 1 32 



Arisaema triphyllum (LiNN.).. 132 



Aristella BERTOL 57 



Aristida LINN 56 



Aristida basiramea ENQELM. . . 56 



purpurea NUTT 56 



Aristidium ENDL 70 



Aristolochia LINN 201 



Aristolochia niacropuylla 



LAM 202 



Aristolochia sipho L'HER 202 



Aristolochiaceae 201 



Aristolochiaephyllum 202 



Aristotelea LOUR 170 



Armeniaca Juss 305 



Armeria LINN 431 



Aroideae 130 



Aronia PERS.... 283, 285 



alnifolia NUTT 285 



arborea BART 286 



arbutifolia ELL 284 



botryapium PERS 286 



cordata RAF 286 



depressa SPACH 284 



ovalis TORR 286 



pyrifolia PERS 284 



Artemisia LINN 550 



biennis WILLD 550 



Artemisia campestris PURSH. 552 



Artemisia canadensis MICHX... 552 



caudata MICHX 552 



A rtemisia cernua NUTT 552 



Artemisia commutata BESS ... 552 



desertorum BESS 552 



douglasiana BESS 561 



Artemisia dracunculoides PURSH 552 



Artemisia dracunculus PURSH 552 



Artemisia frigida WILLD 550 



Artemisia frigida var. gmeli- 



ana BESS 550 



Artemisia gnaplalodes ( N UTT .) . 55 1 



Artemisia hispanica JACQ 550 



hookeriana BESS 551 



inodora HOOK and ARN. 552 



integrifolia MUHL 535 



integrifolia PURSH 551 



lewisii T. and G 552 



Artemisia longifolia NUTT 551 



Artemisia ludoviciana NUTT. 551 



ludoviciana var. serrata 



T. andG 551 



nuttalliana BESS 552 



paciflca NUTT 552 



peucedanifolia Juss 552 



purshiana BESS 551 



sericea NUTT 550 



Artemisia serrata NUTT 551 



Artemisia virgata RICH 550 



vulgaris var. gnaphalo- 



des OK 551 



vulgaris var. ludoviciana 



OK 551 



Arthratherum BEAUV 56 



Arthrostachys DESVX 47 



Arthrothamus KL. and G 341 



Arum triphyllum LINN 132 



Arundo BEAUV 73 



aggerum KIT 73 



agrostoides PURSH 66 



canadenesis MICHX 66 



cinnoides MUHL 66 



colorata WILLD 55 



festucacea WILLD 79 



graeca LINK 76 



neglecta EHRH 66 



phragmites LINN 73 



stricta TIMM 66 



vulgaris LAM 73 



vulnerans GILIB 73 



Asagraya LINDL 144 



Asarum LINN 201 



canadense LINN .... 201 



Asarum caroliniaum WALT. . . 201 



latifolium SALISB 201 



villosum MUHL 201 



Ascaricida CASS 499 



Asclepiadaceae 422 



Asclepias LINN. 423 



Asclepias amoena BRONGN ... 426 



amoena LINN 427 



cprnuti DECNE 426 



douglasii HOOK 426 



Asclepias exaltata (LiNN.) 425 



floridana LAM 424 



Asclepias galioides HBK 424 



Asclepias incarnata LINN 426 



