LIST OF ILLUSTRATIONS 



Figure Page 



1 Formation of ascospores in Ergot Claviceps purpurea 21 



2 Heads of some grasses infected with Ergot Claviceps purpurea 23 



3 Field Horsetail -Equisetum arvense 30 



4 Bracken Fern -Pteris aquilina 34 



5 Skunk-tail Grass Hordeum jubatum 37 



6 Swamp Camas -Zygadenus elegans 39 



7 Common Lupine Lupinus perennis 41 



8 False Hellebore -Veratrum viride 54 



9 Larkspur -Delphinium sp 57 



10 Monkshood -Aconitum napellus 61 



11 Wild Black Cherry -Prunus serotina 65 



12 Stemless Loco Weed Oxytropis Lamberti 67 



13 Flower of Stemless Loco Weed 70 



14 (a) Mountain Laurel -Kalmia latifolia; (b) Pale Laurel Kalmia 



polifolia 72 



15 Water Hemlock Cicuta mactdata 75 



16 Poison Hemlock -Conium maculatum 80 



17 Ragwort Senecio Jacobaea 83 



18 White Snakeroot Eupatorium urticaefolium 87 



19 Grains of Darnel -Lolium temulentum 92 



20 Purple Cockle Agrostemma Githago 94 



21 Seeds of Cow Cockle -Saponaria Vaccaria 98 



22 Seeds of Wild Mustard Brassica arvensis 100 



23 Seeds of Tumbling Mustard Sisymbrium altissimum 103 



24 Seeds of Field Pennycress Thlaspi arvense 104 



25 Seeds of Wormseed Mustard Erysimum cheiranthoides 105 



26 Seeds and broken pods of Wild Radish Raphanus Raphani- 



strum 107 



27 Death Cup Amanita phalloides Ill 



28 Fly Agaric Amanita muscaria Ill 



29 Jack-in-the- Pulpit Arisaema triphyllum 117 



30 Showy Lady-slipper Cypripedium hirsutum 119 



31 Slender Nettle Urtica gracilis 122 



32 Pokeweed -Phytolacca decandra 124 



