92 



Index 



Euphorbia heterophylla var. grami- 



nifolia Englem 45 



Euphorbia Longicuris Scheele 46 



Euphorbia maculata L 44 



Euphorbia marginata Pursh 45 



Euphorbia petaloidea var. Nuttalli 



Engelm 44 



Euphorbia prostrata Ait 44 



Euphorbia Roemeriana Scheele 45 



Euphorbia villifera Scheele 44 



Eustoma Russellianum Grisib 60 



Evax prolifera Nutt 80 



Evening Primrose 55 



Evening Primrose 54 



Evergreen Sumac 47 



Everlasting 80 



Evolvulus pilosus Nutt 62 



Evolvulus sericeus Sw 62 



Eysenhardtia amorphoides H.B.K. .. 37 



Fagara Clava-Herculis Small 42 



Fagara fruticosa Small 42 



False Dandelion 87 



False Garlic. . . 18 



False Gromwell 66 



False Indigo 37 



False Nettle 23 



Festuca octoflora Walt 13 



Filago nivea Small 80 



Filago prolifera Britton 80 



Five-leaved Ivy 49 



Flax 41 



Florida Moss 17 



Foresteria pubescens Nutt 59 



Forget-me-not 66 



Forking Whitlow-wort 26 



Four O'clock 27 



Fraxinus lanceolata Borck 59 



Fraxinus texensis Sarg 59 



Fremont's Goose-foot 25 



French Mulberry 66 



Froelichia campestris Small 26 



Frost Grape 50 



Frost Weed 52 



Frost Weed 83 



Fuirena simplex Vahl 15 



Galium aparine L 73 



Galium texanum Wiegand 73 



Galium virgatum Nutt 74 



Gaiuardia pulchella Foug 84 



Gaitlardia suavis Britton and Rusby. 84 



Garlic 18 



Garrya Lindheimeri (Torr. ) 56 



Gaura brachycarpa Small 53 



Gaura Drummondii T. and G 54 



Gaura parviflora Dougl 54 



Gaura sinuata Nutt 54 



Gaura suffulta Engelm 54 



Geoprumnon crassicarpum Rydb. ... 37 



Geoprumnon Mexicanum Rydg 38 



Gerardia heterophylla Nutt 70 



Gerardia strictiflora Benth 70 



Geranium texanum Heller 41 



Geum canadense Gmel 36 



Geum Virginianum L 34 



Giant Ragweed 76 



Gilia incisa Benth 63 



Gilia rigidula Benth 63 



Gilia rubra Heller 63 



Gleditsia triacanthos L 36 



Gnaphalium purpureum L 80 



Goldenrod 80 



Gonobolus biflorus Nutt 61 



Gonobolus laevis Michx 61 



Gonobolus reticulatus Englem 61 



Gossipianthus lanuginosus Moq 26 



Grand-daddy, Graybread 29 



GRASSES— 



Arctic 13 



Awn 12 



Bear 19 



Beard 8 



Bermuda 12 



Black Gramma 12 



Blue-eyed 20 



Broad-leaved Spike 14 



Brome 13 



Broom 9 



Buffalo 12 



Bur 9 



Canary 11 



Clustered Love 13 



Crab 11, 13 



Fall Witch 10 



Feather 13 



Finger 11 



Foxtail 10 



Goose 13 



Hairy Gramma 12 



Hairy Spear 13 



Indian 9 



Johnson 9 



Lace 13 



Lyme 14 



Meadow Foxtail. . 11 



Mesquite 12 



Narrow Melic 14 



Needle 11 



Needle 12 



Nut 15 



Pigeon 10 



Porcupine 11 



Porcupine 12 



Prickle 9 



Rescue 13 



Rice Cut 11 



Rye 14 



Sheathed 11 



Silver Beard 8 



Slender Bear 18 



Slender Rescue 13 



Slender Meadow 13 



Southern Canary 11 



Southern Poverty 11 



Stagger 19 



Texas Blue 14 



Texas Gramma 13 



Tiny Love 13 



Triple Awn 11 



Water Foxtail 11 



Water Star 17 



Western Umbrella 15 



White Prairie 14 



Windmill 12 



Wire 10 



Wire 13 



Yard 13 



Yellow 10 



Green Ash 57 



Green-briar 19 



Green Dragon 16 



Green-flowered peppergrass 32 



Green Violet 52 



Grindelia sguarrosa Dunal 79 



Gromwell 66 



Ground Cherry 64 



Ground Plum 37 



Ground Plum 38 



Guilleminea densa Moq 26 



