INDEX. 



Heracleum 45 ! 



Hesperis n 



Heteranthera u ^ 



Hibiscus ao 



Hicoria us 



Hieracium ' 4 



Holcus l-,o 



Homalocenchrus 128 



Hordeuro i-n 



Houstonia s^ 



Humulus g4 



Hydrangt-a 40 



Hydrocoiyle 48 



Hydrophylluni 7'> 



Hypericum ig 



Hypopitys 72 



Hypoxis IC7 



Hystrix i.v? 



Ilex 2S 



Ilicioides 23 



Ilysanihes 81 



Impatiens i^ 



Inula 5Q 



Ipomeea 7 - 



Iris 107 



Isoetes 142 



Jeffersonia 7 



Tuglans gs 



Juncoides 114 



Juncus 11,^ 



Juniperus 102 



Kalmia Cg 



Kneiffia 44 



Kccleria i'?: 



Kcellia 85 , 



Lactuca 65 ; 



Lamium 87 j 



Lappula 76 



Laportca 04 



Larix 102 ; 



Lathyrus 31 i 



Lechea 14 \ 



Ledum 70 



Leersia 128 



Legouzia 66 



Lemna 116 



Leonurus 87 j 



Lepidium 13 i 



Leptandra 81 { 



Lep! orchis 103 



Lespedeza 31 



Ligustrum 73 



Lilium Ill 



Limodorum 104 



Linaria 80 



Ltucfera 92 



Lmna-a 51 



Linum 20 



Li far is lo}, 



Liriodendron 6 



Listera 104 



Lithospermum 77 



Lobelia 65 



PAGE 



Lolium 13 J 



Lonicera 5J 



Lophuntltus 87 



Liidwigia 43 



Lujjinus i% 



LuznLi 114 



Lychnis 17 



Lycium 7g 



Lycoi)odium 141 



Lycopsis 77 



Lycopus 85 



Lygodiuni ng 



Lysimachia 72 



Lysintdchia 73 



Magnolia 6 



Maianthettiuvi no 



Malva JO 



Medeola 112 



Medicago 29 



Meibomia 30 



Melampyrum 83 



Melilotus 2Q 



Menispermum 6 



Mentha 85 



Mertensia 76 



Menyanthes 75 



Micrampelis 44 



Microstxlis . . 103 



Milium.' 129 



Mimulus 80 



Mitchella 53 



Mitella 39 



Mollugo 4S 



Monarda 86 



Moneses 7' 



Monotropa 7» 



Monotropa 72 



Morus 94 



Muhlenbergia 129 



M vosotis 77 



M'vrica 96 



Myriophyllum 42 



Naias. . . ; uB 



Xasturtium 12 



Naumburgia 73 



Xi'g'uiido 26 



Xi'tno/'anthes 23 



Nepeta 87 



Nymphaa 8 



N5'ssa 50 



.\uphar S 



Oakesia m 



Oenothera 43. 44 



Onagra 43 



Onoclea 138 



Onosinodium 77 



Ophioglossura 141 



Opulaster 33 



Orchis 105 



Origanum 86 



Orontium "6 



Oryzopsis 129 



Osmorrhiza 47 



Osmunda 139 



