PLATE PAGE 



Pigeon Grass 93 



1'igeon Weed 08 



Pigweed, Kedroot 42 80 



Rough SO 



Russian 41 79 



PIGWEED FAMILY 



PINK FAMILY 32 



PLANTAGINACE^B 74 



Plantago aristata 77 



lanceolata 39 76 



major 38 75 



media 76 



Rugellii 75 



Plantain, Bird-seed 



Bracted 



Broad-leaf 75 



Door-yard 75 



English 76 



Greater 



Hoary 76 



Pale 75 



POLYGONACE* 82 



Polygonum 



aviculare 



Convolvulus , 



lapathifolium 



Muhlenberuii 



pennsylvnnicum 



Persicaria 82 



Portulaca, Wild 41 



Portulaca oleracea 41 



Potentilla Anserina 43 



monspeliensis 43 



norvegica 43 



Poverty Weed 22 50 



Purslane 18 41 



Pusley 41 



Quack Grass : 46 87 



"Quack" : 32 



Quitch 87 



Rabbit-ear 20 



Radish, Wild 



Ragweed, Common 24 52 



False 50 



Great 23 51 



Perennial 52 



Smaller 52 



Tall 51 



RAGWEED FAMILY 48 



Ragwort, Common 28 57 



Tansy 57 



RANUNCULACE^E . 1~ 



"Ranunculus acris 



Cymbalaria 



repens 17 



sceleratus 17 



Rape, Bird 



German 



Raphanus Raphanistrum 24 



Rod-root 68 



Ribgrasa 39 76 



Ribwort 76 



RIBWORT FAMILY 74 



Rosa acieularis, var. Bourgeau- 



iana 42 



arkansana 42 



pratinr.ola 42 



ROSACES . 42 



PLATE PAGE 



Rose, Prairie ............................. 42 



ROSE FAMILY ........................... 42 



Rotation of crops, short ........... 11, 16 



Itudbeckia hirta 



Rumex ..................................... 



Acetosella ........................... 45 



crispus .............................. 44 



Rye-grass, Poison ..................... 



Sage brushes ............................ 



Sage, Lesser Pasture ................ 



Pasture ................................. 



Sweet .................................... 



Sandweed ................................. 



Saponaria Vuecaria .................. 



Savastana odorata ..................... 



SCHOPHULARIACE.*; ....................... 



Scutch ...................................... 



Seed, clean .............................. 



Seeding down ........................... 



Seeds of weeds ......................... 



Seneca Grass ........................... 



Senecio Jacobcca ..................... 28 



riscosus ................................ ". 



vulgaris ................................. 



Setaria glauca .......................... 



viridis ................................ 50 



Shepherd's-purse .................... 8 



Silent Cucubalus ........................ 



inflata ................................ 36 



nociiflora ............................ 12 



pratensit ............................... 



vulgaris ................................. 



Silverweed ................................ 



Ftinapit arvensis ........................ 



Risymbrium, Tall ...................... 



Sisymbrium altissimum ........... 4 



incisum, var. Hartwcrjianum .... 



incisum, var. filipes .......... 3 



pannonicum ........................... 



Skunk Gras.9 ........................... 



Skunk-tail Grass ...................... 



Short-awned ........................... 



Smnrtweeds .............................. 



Rnlidarto canadensis .................... 



lanceolata ........................... 21 



rufloxrt. ................................... 



serotina ................................ 



Sonchus arvensis ..................... 34 



aper ..................................... 



oleraceus ................................ 



pulchellus .............................. 



Sophia incisa ............... ". ............ 



Sorrel, Field ............................. 



Rpd ....................................... 



Sheep ................................. 45 



Sour-grass ................................ 



Sowthistle, Common .................. 



Corn ................ . .................... 



Creeping ............................... 



Field ..................................... 



Perennial ........................... 34 



Spiny .................................... 



Spear Grass .............................. 



Spergula arvensis .................. 17 



Spider-flower, Entire-leaved ...... 



SPINACH FAMILY ........................ 



Spircea tomentosa . 



55 

 82 

 85 

 84 

 94 



48 

 48 

 48 

 48 

 40 

 33 

 92 



73 



87 

 13 

 12 

 13 

 92 

 57 

 58 

 58 

 93 

 93 

 27 

 39 

 39 

 34 

 35 

 34 

 43 

 23 

 22 

 22 

 21 

 21 

 22 

 22 

 88 

 88 

 89 

 82 

 49 

 49 

 49 

 49 

 fi6 

 67 

 67 

 65 

 ?1 

 85 

 85 

 P5 

 85 

 67 

 66 

 66 

 66 

 66 

 67 

 86 

 40 

 18 

 77 

 43 



102 



