CONTENTS 
PAGE 
Prelaces ic wuyuy tas Sedge d deen ek oohs dees Sp Ave gee Seg Gatien 5 
List of Illustrations................... alte sate i he Bote teat Sees 15 
Section I—Plants Dangerous when Included in Hay and Coarse 
Feeds 
Fungi and Bacteria........... in tow dees ceed ea Gaee es 18 
Ergot 
Forage Poisoning ; 
Horsetail Family—Equisetaceae.......0 0.00 27 
The Horsetails—Egquisetum spp. 
Fern Family—Filicineae ©0000. eee 33 
Bracken—Peeris aquilina 
Grass Family—Graminege.: 0.0.06. cece cece eee eee 36 
Skunk-tail Grass—Hordeum jubatum 
Lily Family—Liliaceae................ a Sei cevcy Soe ake SO 38 
Swamp Camas—Zygadenus elegans 
Pea Family—Leguminosae...........0 0000 eee 40 
Lupines—I upinus spp. : 
Sunflower Family—Compositae..... New eKee ne Chee Maes 45 
White Snakeroot—Eupatorium urticaefolium 
Section II].—Plants Dangerous in Pasture or on the Range 
Grass Family—Gramineae.. 2.0... 00 eee 46 
The Sorghums—A ndropogon spp. 
Porcupine or Spear Grass—Stipa spartea 
Needle Grass—Stipa comata : 
Cornstalk Disease 
Lily Family—Lzliaceae............0-.00005. Ge pgeriesnny 50 
Death Camas—Zygadenus venenosus 
False Hellebore— Veratrum viride 
California Swamp Hellebore— Veratrum caltfornicum 
Buttercup Family—Ranunculaceaé..............022005- 56 
Larkspur—Delphinium spp. 
Monkshood—A conitum spp. 
Pasque Flower—A nemone patens 
