Seed Pico its, Ferns, Fern Allies of the Austin Region 93 



Gum Elastic 58 



Gum Plant 79 



Gutierrezia texana T. and G 79 



Gymnosperma corymbosa DC. .... 7 5" 



Hackberry. 23 



Hamosa austrina Small 33 



Hamosa leptocarpa Rydb 38 



Hamosa Lindheimeri Rydb 38 



Hamosa Nuttaliana Rydb C8 



HiLitmannix speciosa Small 54 



Hawthorne 35 



Hedeoma acinoides Scheei-? 68 



Hedeoma Drummondii Benth 68 



Hedge Nettle 70 



Hedge Parsley 57 



Helenium microcephalum DC 81 



Helenium tenuifolium Nutt 84 



Helianthemum rosmarini folium Pursh 52 



Helianthus annuus L. 81 



Helianthus cinereus T. and G. 81 



Helianthus Maximilianii Schrad. ... 81 



Helianthus praecox Engelm 81 



Heliotropium tenellum Torr 66 



Henbit 68 



Herpestris chamaedryoides H.B.K. .. 71 



Herpestris Monniera H.B.K 71 



Heterotheca subaxillaris Britt. and 



Rusby T9 



Heter anther a dubia McM 17 



Hicoria Pecan Britton 20 



Hilaria texana Nash. (H. cenchroides 



var. texana Vasey 9 



Hoarhound 68 



Homolocenchrus oryzoides Poll 11 



Honey Locust 36 



Honeysuckle 74 



Hop Tree 42 



Hordeum pusillum Nutt 14 



Horned Pondweed 8 



Hornwort. . 29 



Horsebean 36 



Horsemint 68 



Horse Nettle 65 



Horsetail, Scouring Rush 6 



Horseweed 80 



Hosackia Purshiana Benth 38 



Houstonia angusti folia Michx 74 



Houstonia humifusa A. Gray 74 



Houstonia subviscosa Gray 74 



Hydrocotyle umbellata L 57 



Hydrocotyle verticillata Thumb 57 



Hymenantherum pentachaetum 85 



Hymenoclea monogyra T. and G 77 



Hymenopappus artemisaef olius DC. . . 84 



Hymenopappus carolinense Porter. . . 84 



Hymenopappus corymbosus T. & G. 84 



Ibervillea Lindheimeri Greene 75 



Ibervillea tenella Small 75 



Ibidium 20 



Ice Plant 83 



Ilex decidua Watt 47 



Ilex vomitoria Ait 47 



Ill-scented Sumac 47 



Indian Blanket 84 



Indian Cherry 49 



Indian Chickweed 27 



Indian Mallow 50 



Indian Mustard 31 



Indian Paint Brush 70 



Indian Sunburst 84 



Indigo Plant 38 



Indian Tobacco 80 



Indigofera leptosepala Nutt 38 



Ionidium poly galae folium Vent. ... 52 



Ionoxalis Drummondii Rose 41 



Ipomoea trifida G. Don var. Tor- 



reyana Gray ... 62 



Iron Weed 77 



Isnardia natans Small 54 



Iva angustifolia Nutt 77 



Iva ciliata Willd 77 



Jatropha stimulosa Michx 44 



Jerusalem Cherry 64 



Jimson Weed 64 



Joint Fir 7 



Judas Tree 36 



Juglans nigra L 20 



Juglans rupestris L 20 



Jujube 49 



Juncus dichotomus Ell 17 



Jungle Rice 10 



Jussiaea diffusa Forskl 54 



Jussiaea suffruticosa L 54 



Kallstroemia intermedia Vail 42 



Keerlia bellidifolia Gray p Engelm. 80 



Krameria secundiflora DC. . 36 



Krigia occidentalis Nutt 86 



Laciniaria punctata Kuntze 78 



Lactuca ludoviciana DC 86 



Lactuca virosa L 86 



Ladies' Tresses 20 



Lamb Lettuce 75 



Lamb's Quarter 25 



Lamium amplexicaule L 68 



Lantana horrida H. B. K 67 



Large-flowered Bladder-pod 32 



Lathyrus pusillus Ell 38 



Lavauxia triloba Spach 54 



Lavauxia Watsoni Small 54 



Lechea tenuifolia Michx 52 



Lemna cyclostasa Chev 16 



Lemna minor L 16 



Lconotis nepetaefolia R. Br 68 



Lepidium apetalum Wild 32 



Lepidium austrinum Small 32 



Lepidium medium, Greene 32 



Lepidium virginicum L 32 



Leptilon canadense Britton 80 



Leptochloa mucronata Kunth 13 



Lepuropetalon spathulatum Ell 34 



Lespedeza frutescens Brit 38 



Lespedeza procumbens Michx 38 



Lesquerella densiflora S. Wats 32 



Lesquerella Engelmannii S. Wats. . . 32 



Lesquerella gracilis S. Wats 32 



Lesquerella grandiflora S. Wats. ... 32 



Lesquerella lasiocarpa S. Wats 32 



Lesquerella recurvata S. Wats 33 



Leucophyllum texanum Benth 70 



Leucosyris spinosus Greene 79 



Liatris punctata Hook 79 



Limmodca arkansana pilosa Nash.. 9 



Limoncillo 84 



Linaria texana Scheele 70 



Lindheimera texana Gray & Engelm. 82 



Lion's Heart 69 



Lip Fern 5 



Lippia ligustrina Brit 66 



Lippia nodiflora L 67 



■ in breviflorum Engelm. 



and Gray 65 



Lithospernum linearifolium Goldie.. 66 



Live Oak 23 



Lobf-Ha cardinalis L 76 



Lolium perenne L 14 



Lomatium daucifolium Coult. & Rose 57 



Long Moss 17 



Lonicera albi flora T. and G 74 



Lonicera Japonica Thurb 74 



