262 
Genera and their Authors—continued. 
Guettarda, Linnzeus. 
Guevina, Molina. 
Guichenotia, J. Gay. 
Guilielma, Martius. 
Gundelia, Linnzus. 
Gunnera, Linnzeus. 
Gustavia, Linnzus. 
Gutierrezia, Lagasca. 
Guzmania, Ruiz and Pavon. 
Gymnadenia, R. Brown. 
Gymnema, R. Brown. 
Gymnocladus, La Marck. 
Gymnogramme, Desvaux. 
Gymnolomia, Humboldt, 
and Kunth. 
Gymnostachys, R. Brown. 
Gymnostachyum, Nees. 
Gynandropsis, De Candolle. 
Gynerium, Humboldt and Bonpland. 
Gynura, Cassini. 
Gypsophila, Linnzeus. 
Bonpland, 
Habenaria, Willdenow. 
Haberlea, Frivaldsky. 
Hablitzia, Bieberstein. 
Habranthus, Herbert. 
Haequetia, Necker. 
Hemanthus, Linnzus. 
Hemaria, Lindley. 
Hematoxylon, Linneus. 
Hemodorum, Smith. 
Hakea, Schrader. 
Halesia, Linnzeus. 
Halimodendron, Fischer. 
Halleria, Linnzus. 
Hallia, Thunberg. 
Hamamelis, Linneus. 
Hamelia, Jacquin. 
Hamiltonia, Roxburgh. 
Hancornia, Gomez. 
Haplopappus, Cassini. 
Hardenbergia, Bentham. 
Hardwickia, Roxburgh. 
Haronga, Thouars. 
Harpagophytum, De Candolle. 
Hartogia, Thunberg. 
Hartwegia, Lindley. 
Haworthia, Duval. 
Hebecladus, Miers. 
Hebenstretia, Linnzus. 
Hechtia, Klotzsch. 
Hedera, Linnzeus. 
Hedwigia, Swartz. 
Hedychium, Koenig. 
Hedysarum, Linnzus. 
Hedyscepe, H. Wendland. 
Heeria, Schlechtendahl. 
Heinsia, De Candolle. 
Heisteria, Linnzus. 
Helenium, Linnzus. 
Heliamphora, Bentham. 
Helianthemum, Persoon. 
Helianthus, Linnzeus. 
Helichrysum, Gertner. 
Helicodiceros, Schott. 
Heliconia, Linnzeus. 
Helicteres, Linnzus. 
Helinus, E. Meyer. 
Heliocarpus, Linnzus. 
Heliophila, Linnzus. 
Heliopsis, Persoon. 
Heliotropium, Linnzeus. 
Helipterum, De Candolle. 
Helleborus, Linnzus. 
Helmholtzia, F. Mueller. 
Helmia, Kunth. 
Helminthostachys, Kaulfuss. 
Helonias, Linnzus. 
Helwingia, Willdenow. 
Hemerocallis, Linnzus. 
Hemiandra, R. Brown. 
Hemichzena, Bentham. 
Hemimeris, Thunberg. 
Hemionitis, Linnzeus. 
Hemiphragma, Wallich. 
Hemitelia, Brown. 
Heptapleurum, Gertner. 
Heracleum, Linnzeus. 
Herbertia, Sweet. 
Heritiera, Aiton. 
Hermannia, Linnzus. 
Herminiera, Guillemin and Perrottet. 
Herminium, Linnzus. 
Hernandia, Linnzus. 
Herniaria, Linnzus. 
Herpestis, Gertner, jun. 
Herrania, Goudot. 
Herreria, Ruiz and Payon. 
Hesperantha, Ker. 
Hesperis, Linnzus. 
Hessea, Herbert. 
Heteranthera, Ruiz and Pavon. 
Heteropappus, Lessing. 
Heteropterys, Kunth. 
Heterospathe, Scheffer. 
Heterotheca, Cassini. 
Heterotoma, Zuccarini. 
Heterotropa, Morren and Decaisne. 
Heuchera, Linnzus. 
Hevea, Aublet. 
Hexaglottis, Ventenat. 
Hibbertia, Andrews. 
Hibiscus, Linnzeus, 
Hieracium, Linnzus. 
Hierochloe, Gmelin. 
Hillia, Jacquin. 
Hindsia, Bentham. 
Hippeastrum, Herbert. 
Hippia, Linnzus. 
Hippobromus, Ecklon and Zeyher. 
Hippocrepis, Linnzeus. 
Hippomane, Linnzeus. 
Hippophae, Linnzus. 
Hippuris, Linnzus. 
Hodgsonia, Joseph D. Hooker and 
Thomson. 
Hoffmannia, Swartz. 
Holbeellia, Wallich. 
Holeus, Linnzeus. 
Holmskioldia, Retz. 
Homalanthus, A. Jussieu. 
Homalomena, Schott. 
Homeria, Ventenat. 
Homogyne, Cassini. 
Honckenya, Willdenow. 
Hoodia, Sweet. 
Hordeum, Linnzeus. 
Horminum, Linnzeus. 
Horsfieldia, Blume. 
Hosackia, Douglas. 
Hottonia, Linnzeus. 
Houlletia, A. Brongniart. 
Houstonia, Linnzeus. 
Houttea, Decaisne. 
Houttuynia, Thunberg. 
THE DICTIONARY OF GARDENING. 
Hovea, R. Brown. 
Hovenia, Thunberg. 
Howea, Beccari. 
Hoya, R. Brown. 
Hudsonia, Linneus. 
Huernia, R. Brown. 
Humea, Smith. 
Humulus, Linnzeus. 
Hunnemannia, Sweet. 
Hura, Linnzus. 
Hutehinsia, Brown. 
Hyacinthus, Linneus. 
Hybernia, Latreille. 
Hydnum, Linnzeus. 
Hydrangea, Linnzus. 
Hydrastis, Linnzeus. : 
Hydriastele, H. Wendland and Drude. 
Hydrocharis, Linnzus. 
Hydrolea, Linnzeus. 
Hydropeltis, Michaux. 
Hydrophyllum, Linnzus. 
Hymenea, Linneus. 
Hymenandra, Alphonse de Candolle. 
Hymenanthera, R. Brown. 
Hymenocallis, Salisbury. 
Hymenodictyon, Wallich. 
Hymenophyllum, Linneus. 
Hyophorbe, Gzertner. 
Hyosecyamus, Linnzus. 
Hyospathe, Martius. 
Hypecoum, Linnzus. 
Hypericum, Linneus. 
Hyphene, Gertner. 
Hypocalymma, Endlicher. 
Hypocalyptus, Thunberg. 
Hypocyrta, Martius. 
Hypoderris, Brown. 
Hypoéstes, R. Brown. 
Hypolepis, Bernhardi. 
Hypolytrum, L. C. Richard. 
Hypoxis, Linneus. 
Hyssopus, Linnzus. 
Ibbetsonia, Sims. 
Iberidella, Boissier. 
Iberis, Linnzus. 
Ieacina, A. Jussieu. 
Ichnocarpus, R. Brown. 
Idesia, Maximowicz. 
Tlex, Linnzeus. 
Illecebrum, Linnzus. 
Ilicium, Linneus. 
Imantophyllum, Hooker. 
Impatiens, Linnus. 
Incarvillea, Jussieu. 
Indigofera, Linnzeus. 
Inga, Willdenow. 
TInoearpus, Forster. 
Inula, Linnzeus. 
Tochroma, Bentham. 
Tone, Lindley. 
Tonidium, Ventenat. 
Tonopsidium, Reichenbach. 
Ionopsis, Humboldt, Bonpland, and 
Kunth. 
Tostephane, Bentham. 
Tpomeea, Linnzeus. 
Tresine, Linnzus. 
Triartea, Ruiz and Pavon. 
Tris, Linneus. 
Isatis, Linneeus. 
Ischarum, Blume. 
