PL

Olive, 41, 171, 219, 230.

Olivier (Olea), 83, 84, 169, 170, 208, 227, 230, 251, 255, 275, A NE a (Osmanthus), 2

Ombellifères, 26, à 68, 77, 164, 199, 203, 204, 284.

Ombilic (Umbilicus), 198.

Onagre (Œnothera), 38 ; biennis, 200; — Lamarckiana, 101 ; — nana, 10],

nee 93: 1525:PES 13:

Oncoba épineux, 284.

Oncocalamus, 140.

Onobrychis sativa, 192.

Onopordon acanthe, 164.

Oomycètes, 116. Ophioglossum, 124.

Ophrys,19,72,84, 154, PL.13.

Opopanax, 203.

a ra 203, 204, 277.

Opuntia, 3 6, 46, PI. 16, 247, 264. 278, 279:

monacantha, 82: — Ficus

indica, 202, 247.

re (Citrus fente

Orcanette (Alkanna), 172,

Orchidées, 3, 7, 8, 19, 38, 39, 58, 59, 62, 6, Si. 80, 84; 92, 93, 94, 120, 121,129, 145, br 3, 150 à 154, 264, 298, 299, 302,

Orchis, 19, 63, 72, 84, 150, 153, 154, 235, PL. 13.

Oreille-d'ours (Primula auricula), 170.

Oreodoxa, 90, 140, 141, 142,

Orge (Hordeum), 49, 60, 104, 133, 208, 2II, 212, 239, 241, 247, 288.

Origanum vulgare, 176, 273.

Orme (Ulmus), 33, 44, 61, 65, 73,103, 157, 247, 250, de 253, 254, 279, 294,

ts, 53, 143, 144.

Ornithope (Ornithopus) 192.

Orobanche, 56, A 175.

Pie (Sedum), 7, 198.

Ortie (Urtica), 14 68, 99, 104, 105, 155, 156; (Lamium album), 99, 100, 175; — Bœhmeria, 260.

Oryza, Oryzées, 130, 131.

Oscillaria, 50, 109, 110.

Oseille (Rumex acetosa), 158,

HA ; — épinard, Patientia,

Osmanthus fra grans, 242.

ue regalis, 124, 206.

Osyris,

Ot “ts 85.

Otozamites, 206.

Ouvirandra fenestré, 135.

Oxalis, 38, 52, 185,295, 298.

Oxyride, 83