• Hibiscus: splendid exotic flowers which seduce the birds

• Hieraaetus fasciatus

• Hierophis viridiflavus

• Himantoglossum hircinum

• Himantoglossum robertianum

• Himantopus himantopus

• Hippeastrum Hybr.

• Hippobroma longiflora

• Hippocampus guttulatus

• Hippolyte inermis

• Hippophae rhamnoides

• Hippopotamus amphibius

• Hirundo megaensis

• Hirundo rustica

• Histiopteris incisa

• History of the Rose Garden Princesse Grace de Monaco

• Holacanthus bermudensis

• Holacanthus ciliaris

• Holmskioldia sanguinea

• Holocentrus rufus – Walbaum, 1792

• Homarus gammarus – Linnaeus, 1758

• Homo erectus – Dubois, 1894

• Homo habilis – Leakey et al., 1964

• Homo neanderthalensis – William King, 1864

• Homo sapiens – Linnaeus, 1758

• Homola barbata

• Homopus areolatus

• Hopea odorata

• Horsfieldia sucosa

• House plants: the most beautiful and easiest species

• Howea forsteriana

• Howeara Hybr.

• Hoya acuta

• Hoya archboldiana

• Hoya carnosa

• Hoya cominsii

• Hoya cumingiana

• Hoya dischorensis

• Hoya excavata

• Hoya imbricata

• Hoya lanceolata subsp. bella

• Hoya mindorensis

• Hoya obovata

• Hoya obscura

• Hoya pubicalyx

• Hoya pubifera

• Hoya verticillata

• Huernia marnieriana

• Huernia verekeri

• Humulus lupulus

• Hura crepitans

• Hura polyandra

• Hyacinthus orientalis

• Hydatina albocincta

• Hydra vulgaris

• Hydrangea macrophylla

• Hydrangea quercifolia

• Hydriastele beguinii

• Hydriastele rostrata

• Hydromantes italicus

• Hydrophis elegans

• Hygrophoropsis aurantiaca

• Hyla arborea

• Hyla meridionalis

• Hyles euphorbiae

• Hylobates lar

• Hymenaea courbaril

• Hymenocallis

• Hymenocera picta

• Hymenopellis radicata

• Hyophorbe lagenicaulis

• Hyophorbe verschaffeltii

• Hyoscyamus niger

• Hypericum androsaemum

• Hypericum calycinum

• Hypericum coris

• Hypericum hookerianum

• Hypericum perforatum

• Hypericum repens

• Hyperolius marmoratus

• Hyphaene thebaica

• Hypholoma fasciculare

• Hypholoma sublateritium

• Hypoatherina barnesi – Schultz, 1953

• Hypselecara temporalis – Günther, 1862

• Hypsipetes crassirostris

• Hypsypops rubicundus

• Ichthyophis glutinosus

• Ichthyosaura alpestris

• Ife miceliari

• Iguana iguana

• Iguanas, agames and chameleons: oddities of the saurians

• Iguanura wallichiana

• Ilex aquifolium

• Impatiens balfourii

• Impatiens walleriana

• Imperial geraniums: huge spectacular spring flowers

• Indianthus virgatus

• Inga edulis

• Inga feuilleei

• Inocybe geophylla

• Intsia bijuga

• Inula spiraeifolia

• Ionopsis utricularioides

• Iphiclides podalirius

• Ipomoea cairica

• Ipomoea horsfalliae

• Ipomoea Hybr.

• Iris domestica

• Iris pseudacorus

• Iris Section Oncocyclus

• Iris spuria

• Iris x germanica

• Iris xiphium

• Iris: nowadays they count 30.000 horticultural forms

• Ischnoderma benzoinum

• Isopogon latifolius

• Issoria lathonia

• Istologia vegetale – Sezione fusti

• Ixora coccinea

• Ixora finlaysoniana

• Janthina globosa

• Jasminum azoricum

• Jasminum multiflorum

• Jasminum polyanthum

• Jatropha curcas

• Jatropha gossypiifolia

• Jatropha integerrima

• Jatropha podagrica

• Jenneria pustulata

• Johannesteijsmannia altifrons

• Johannesteijsmannia lanceolata

• Johannesteijsmannia magnifica

• Jovibarba allionii

• Juglans regia

• Juniperus communis

• Juniperus oxycedrus

• Juniperus phoenicea

• Juniperus sabina

• Justicia brandegeeana

• Justicia carnea

• Jynx torquilla

• Kaempferia elegans

• Kalanchoe blossfeldiana

• Kalanchoe fedtschenkoi

• Kalanchoe manginii

• Kaloula pulchra

• Kangaroos: as tall as a rabbit … or as a man

• Kerriodoxa elegans

• Khaya senegalensis

• Kigelia africana

• Kinosternon subrubrum

• Kleinia neriifolia

• Koala : it gets out from the pouch … and kisses mum

• Kobus defassa

• Kobus ellipsiprymnus

• Kobus kob

• Kopsia fruticosa

• Kopsia singapurensis

• Kretzschmaria deusta

• Labracinus melanotaenia – Bleeker, 1852

• Labroides dimidiatus

• Labrus mixtus

• Laccaria amethystina

• Laccaria bicolor

• Lacerta agilis

• Lactarius aurantiacus

• Lactarius circellatus

• Lactarius deliciosus

• Lactarius intermedius

• Lactarius piperatus

• Lactarius porninsis

• Lactarius salmonicolor

• Lactarius serifluus

• Lactarius torminosus

• Lactarius volemus

• Lactoria cornuta

• Laelia lueddemanii

• Laemanctus longipes

• Laetiporus sulphureus

• Lagerstroemia calyculata

• Lagerstroemia floribunda

• Lagerstroemia indica

• Lagerstroemia loudonii

• Lagerstroemia speciosa

• Lama guanicoe

• Lambis crocata

• Lampetra zanandreai – Vladykov, 1955

• Lampropeltis getula

• Lampropeltis triangulum

• Lampropeltis zonata

• Lamprotornis superbus

• Lanius collurio

• Lantana camara

• Larabicus quadrilineatus

• Larix decidua

• Larosterna inca

• Larus michahellis

• Lasiommata maera

• Latania loddigesii

• Lathyrus sphaericus

• Lathyrus sylvestris

• Lathyrus tuberosus

• Lathyrus vernus

• Laticauda colubrina

• Laticauda schistorhynchus

• Lauritrioza alacris

• Laurus nobilis

• Lavandula angustifolia

• Lavandula stoechas

• Lavatera acerifolia

• Leaf geraniums: leaves with white, yellow, and red variegations

• Leccinum aurantiacum

• Leccinum carpini

• Leccinum holopus

• Leccinum scabrum

• Lechenaultia acutiloba

• Lechenaultia biloba

• Lecythis ollaria

• Leea rubra

• Leguminosae: a large botanical family with 17.000 species

• Lemur catta

• Leonotis leonurus

• Leontopodium nivale

• Leopardus guigna

• Lepanthes cordeliae

• Lepanthes elegantula

• Lepanthes katleri

• Lepidochitona caprearum – Scacchi, 1836

• Lepiota clypeolaria

• Lepisanthes alata

• Lepisosteus osseus

• Lepista flaccida

• Lepomis gibbosus – Linnaeus, 1758

• Leporicypraea mappa

• Leptailurus serval

• Leptinotarsa decemlineata

• Leptoptilos crumenifer

• Letharia vulpina

• Leucoagaricus americanus

• Leucojum vernum

• Leucoma salicis

• Leucopaxillus candidus

• Leucophaeus atricilla

• Leucorchis albida

• Leucospermum cordifolium

• Leucospermum erubescens

• Leucospermum reflexum

• Leucospermum: pincushion and … a feminist triumph

• Libelloides coccajus

• Lichanura trivirgata

• Lichene con corpi riproduttivi

• Lichia amia

• Licuala bintulensis

• Licuala grandis

• Licuala lauterbachii

• Licuala malajana

• Licuala mattanensis

• Licuala orbicularis

• Licuala peltata

• Licuala ramsayi

• Licuala spinosa

• Licuala triphylla

• Lilium bulbiferum

• Lilium candidum

• Lilium Hybr.

• Lilium martagon

• Lilium pyrenaicum

• Lilium regale

• Lilium rubrum

• Lilium tigrinum

• Lima scabra – Born, 1778

• Limax maximus – Linnaeus, 1758

• Limenitis reducta

• Limodorum abortivum

• Linospadix monostachyos

• Linyphiidae – Blackwall, 1859

• Liopholis inornata

• Liparis cespitosa

• Liquidambar styraciflua

• Liriodendron tulipifera

• Liriope muscari

• Lissachatina fulica

• Lissotriton vulgaris

• Litchi chinensis

• Lithobates catesbeianus

• Lithobates pipiens

• Lithobates sphenocephalus

• Lithognathus mormyrus

• Lithops aucampiae

• Lithops marginata

• Lithops salicola

• Lithops turbiniformis

• Lithospermum diffusum

• Litocranius walleri

• Litoria caerulea

• Livistona chinensis

• Livistona decora

• Livistona saribus

• Lobatus peruvianus