266 THE DICTIONARY OF GARDENING. 
Genera and their Authors—continued. 
Othonnopsis, Jaubert and Spach. 
Otiorhyncbus, Germar. 
Otochilus, Lindley. 
Ottelia, Persoon. 
Ourisia, Commerson. 
Ouvirandra, Thouars. 
Oxalis, Linnzus. 
Oxyanthus, De Candolle. 
Oxybaphus, Vahl. 
Oxycoccus, Persoon. 
Oxydendron, De Candolle. 
Oxylobium, Andrews. 
Oxypetalum, R. Brown. 
Oxyspora, De Candolle. 
Oxystelma, R. Brown. 
Oxytropis, De Candolle. 
Ozothamnus, Lessing. 
Pachira, Aublet. 
Pachynema, Brown. 
Pachyphyllum, Humboldt, Bonpland, 
and Kunth. 
Pachypodium, Lindley. 
Pachyrhizus, L. C. Richard. 
Pachysandra, Michaux. 
Pachystima, Rafinesque. 
Pachystoma, Blume. 
Pederia, Linneus. 
Pederota, Linnzus. 
Peeonia, Linnzeus. 
Palafoxia, Lagasca. 
Palava, Cavanilles. 
Paliavana, Vandelli. 
Palicourea, Aublet. 
Palisota, Reichenbach. 
Paliurus, Jussieu. 
Pallenis, Cassini. 
Palmia, Endlicher. 
Palumbina, Reichenbach, jun. 
Panax, Linneus. 
Pancratium, Linnzeus. 
Pandanus, Linnzus, jun. 
Panicum, Linnzus. 
Papaver, Linnzeus. 
Papyrus, Willdenow. 
Paracaryum, Boissier. 
Paradisanthus, Reichenbach, jun. 
Paradisia, Mazzucato. 
Pardanthus, Ker. 
Parinarium, Jussieu. 
Paris, Linnzeus. 
Parkia, R. Brown. 
Parkinsonia, Linnzus. 
Parmentiera, De Candolle. 
Parnassia, Linnzeus. 
Parochetus, Hamilton. 
Paronychia, Jussieu. 
Parrotia, C. A. Meyer. 
Parrya, Brown. 
Parsonsia, R. Brown. 
Parthenium, Linnzus. 
Pascalia, Ortega. 
Paspalum, Linnzeus. 
Passiflora, Linnzeus. 
Patagonula, Linnzeus. 
Patersonia, R. Brown. 
Patrinia, Jussieu. 
Paullinia, Linnzeus. 
Paulownia, Siebold and Zucecarini. 
Pavetta, Linnezeus. 
Pavia, Poiret. 
Pavonia, Cavanilles. 
Pectis, Linneus. 
Pedalium, Linnzeus. 
Pedicularis, Linnzus. 
Pedilanthus, Necker. 
Peganum, Linnzus. 
Pelargonium, L’Héritier. 
Pelecyphora, Ehrenberg. 
Pelexia, Lindley. 
Peliosanthes, Andrews. 
Pellwa, Link and Hooker. 
Pellionia, Gaudichand. 
Peltandra, Rafinesque. 
Peltaria, Linnzus. 
Peltophorum, Vogel. 
Peltostigma, Walpers. 
Pemphigus, Hartig. 
Pena, Linnzeus. 
Pennisetum, Persoon. 
Pentacheta, Nuttall. 
Pentadesma, Sabine. 
Pentagonia, Bentham. 
Pentapera, Klotzsch. 
Pentapetes, Linnzus. 
Pentapterygium, Klotzsch. 
Pentarhaphia, Lindley. 
Pentas, Bentham. 
Pentstemon, Mitchell. 
Pentzia, Thunberg. 
Peperomia, Ruiz and Pavon. 
Peplis, Linnzus. 
Pereskia, Miller. 
Perezia, Lagasea. 
Pergularia, Linneus. 
Peridermium, Link. 
Perilomia, Humboldt, Bonpland, and 
Kunth. 
Periploca, Linnzus. 
Peristeria, Hooker. 
Peristrophe, Nees. 
Peritoma, De Candolle. 
Pernettya, Gaudichaud. 
Peronospora, Corda. 
Persea, Geertner, jun. 
Persica, Tournefort. 
Persoonia, Smith. 
Petalacte, Don. 
Petalidium, Nees. 
Petalostemon, Michaux. 
Petasites, Gertner. 
Petiveria, Linnzeus. 
Petra, Linnzeus. 
Petrobium, R. Brown. 
Petrophila, R. Brown. 
Petteria, Presl. 
Petunga, De Candolle. 
Petunia, Jussieu. 
Peucedanum, Linneus. 
Peumus, Persoon. 
Peziza, Dillenius. 
Pfaffia, Martius. 
Phaca, Linneus. 
Phacelia, Jussieu. 
Phaedon, Megerle. 
Pheedranassa, Herbert. 
Phzenocoma, Don. 
Pheenosperma, Munro. 
Phaius, Loureiro. 
Phalaenopsis, Blume. 
Phalaris, Linneus. 
Phaleria, Jack. 
Pharnaceum, Linneeus. 
Pharus, Linnzus. 
Phaseolus, Linneus. 
Phebalium, Ventenat. 
Phelipza, Desfontaines. 
Philadelphus, Linnzeus. 
Philageria, Masters. 
Philesia, Commerson. 
Philibertia, Humboldt, Bonpland, and 
Kunth. 
Phillyrea, Linnzus. 
Philodendron, Schott. 
Philotheca, Rudge. 
Philydrum, Banks. 
Phinza, Bentham. 
Phleum, Linnzeus. 
Phlogacanthus, Nees. 
Phlomis, Linnzeus. 
Phlox, Linnzus. 
Phoenix, Linnzus. 
Pholidocarpus, Blume. 
Pholidota, Lindley. 
Phormium, Forster. 
Phorodon, Passerini. 
Photinia, Lindley. 
Phragmidium, Link. 
Phratora, Chevrolat. 
Phryma, Linnzus. 
Phrynium, Willdenow. 
Phuopsis, Grisebach. 
Phygelius, E. Meyer. 
Phylica, Linnzeus. 
Phyllagathis, Blume. 
Phyllanthus, Linneus. 
Phyllarthron, De Candolle. 
Phyllis, Linnzeus. 
Phyllobius, Schénherr. 
Phyllocactus, Link. 
Phyllocalyx, Bergius. 
Phyllocladus, L. C. Richard. 
Phyllodoce, Salisbury. 
Phyllostachys, Siebold and Zucca- 
rini. 
Phyllota, De Candolle. 
Phyllotreta, Chevrolat. 
Physalis, Linneus. 
Physianthus, Martius. 
Physidium, Schrader. 
Physochlaina, G. Don. 
Physosiphon, Lindley. 
Physospermum, Cusson. 
Physostegia, Bentham. 
Physostelma, Wight. 
Physostigma, Balfour. 
| Physurus, L. C. Richard. 
Phytelephas, Ruiz and Payon. 
Phyteuma, Linnaeus. 
Phytocrene, Wallich. 
Phytolacea, Linneeus. 
Phytomyza, Fallén. 
Phytophthora, De Bary. 
Piaranthus, R. Brown. 
Picea, Link. 
Piecrorhiza, Royle. 
Pictetia, De Candolle. 
Pieris, Don. 
Pigafetta, Beccari. 
Pilea, Lindley. 
Pileanthus, Labillardiére. 
Piloearpus, Vahl. 
Pilocereus, Lemaire. 
Pilularia, Linnzus. 
Pimelea, Banks. 
