Oldenlandia,533.Oldfieldia,321.Olea,427.OLEACEAE,8,13,30,55,56,58,425,pl. 126.Oligocarpus,557,563.Oligodora,578.Oligogynium,117.Oligomeris,229,pl. 55.Oligostemon,251.Oligothrix,575.Olinia,380.OLINIACEAE,47,380.Olyra,80.Ommatodium,150.Omphalea,317.Omphalocarpum,423.Omphalodes,466.Omphalogonus,444.Omphalopappus,569,583.Onagra,399.ONAGRACEAE,397.Oncinema,451.Oncinotis,434.Oncoba,369.Oncoba,369.Oncocalamus,112.Oncostemma,452.Oncostemon,418.Ondetia,554.Ongokea,174.Onobrychis,285.Ononis,259,266,268,271,281.Onopordon,551.Onosma,465.Operculina,461.Ophiobotrys,372.Ophiocaulon,376.Ophiurus,85.Ophrys,152.Opilia,173,pl. 36.OPILIACEAE,20,173,pl. 36.Oplismenus,82.Opuntia,379.Opuntia,379.ORCHIDACEAE,5,150,pl. 26.Orchipeda,439.Orchis,152.Orchis,152.Oreacanthus,511.Oreobambus,89.Oreobliton,182.Oreodaphne,210.Oreograstis,109.Oreosyce,536.Orestia,156.Orfilea,314.Oricia,298.Origanum,480.Origanum,480.Orlaya,404.Ormenis,577.Ormocarpum,273,281,286.Ormosia,257.Ornithogalum,127.Ornithoglossum,128.Ornithopus,262.OROBANCHACEAE,53,500,pl. 139.Orobanche,500.Orobus,259.Oropetium,89.Orothamnus,171.Orphium,432.Ortegia,194.Orthanthera,455.Orthochilus,157.Orthogoneuron,396.Orthogynium,201.Orthopenthea,607.Orthosiphon,473.Orthosiphon,473.Orygia,189.Oryza,80.Oryzopsis,95.Osbeckia,395.Osbeckia,394.Osmites,555.Osmitopsis,555.Osteospermum,557,563.Osterdamia,84.Ostryocarpus,288.Ostryoderris,609.Osyridicarpus,172.Osyris,172,pl. 35.Othonna,568.Othonnopsis,568.Otiophora,523.Otocarpus,224.Otochlamys,579.Otomeria,532.Otoptera,277.Otospermum,578.Otostegia,479.Ottelia,78,pl. 7.Oubangia,358.Oudneya,222.Ouratea,359.Ouret,184.Ourouparia,525.Ouvirandra,75.OXALIDACEAE,29,34,39,60,62,63,290,pl. 69.Oxalis,291.Oxalis,291.Oxyanthus,528.Oxygonum,178,pl. 39.Oxygyne,150.Oxymitra,204,206.Oxystelma,446,451.Oxystigma,252.Oxytenanthera,88.Pachira,353.Pachites,151.Pachycarpus,449.Pachylobus,302,pl. 75.Pachylobus,302.Pachypodanthium,206.Pachypodium,433.Pachyrhynchus,563.Pachyrrhizus,277.Pachystela,422.Pachystigma,518.Pachystoma,157.Pachytrophe,166.Pacourea,436.Paederia,523.Paeonia,198.Paepalanthus,121.Paepalanthus,121.Paivaeusa,321.Palaquium,423.Palisota,122.Palissya,315.Paliurus,344.Pallenis,554.PALMAE,3,4,110,pl. 10.11.Palmstruckia,220.Panax,401.Pancovia,337.Pancratium,136.Panda,289.PANDACEAE,27,289.PANDANACEAE,2,73,pl. 3.Pandanus,73,pl. 3.Pandiaka,184.Pandorea,496.Panicum,82.Panicum,82.Papaver,213.PAPAVERACEAE,19,21,24,211,pl. 52.Papaya,377.PAPAYACEAE,377.PAPILIONACEAE,245.Pappea,338.Pappea,408.Pappophorum,96,100.Paracaryum,467.Paracephaëlis,525.Paracolea,497.Paradaniella,608.Paradenocline,315.Paragenipa,528.Paragophyton,518.Paranomus,171.Parapodium,447.Parapodium,447.Parasia,430.Parastranthus,542.Parasystasia,510.Parentucellia,484.Parietaria,168.Parinari,243.Parinarium,243,pl. 65.Paritium,352.Parkia,245.Parkia,247.Parkinsonia,249.Parochetus,262,275.Parolinia,216.Paronychia,193.PARONYCHIEAE,192.Paropsia,370.Paropsia,370.Paropsiopsis,370.Parquetina,442.Parthenium,564.Pasaccardoa,552.Paschanthus,376.Paspalum,82.Passerina,383.Passiflora,375.PASSIFLORACEAE,12,23,26,374,pl. 106.PASSIFLORACEAE,376,377.Pastinaca,408.Pastorea,228.Pattara,418.Paullinia,336.Paulowilhelmia,504.Paulowilhelmia,506.Pauridia,135.Pauridiantha,529.Pausynistalia,531.Pavetta,520,pl. 144.Pavonia,351,pl. 92.Paxia,244.Paxiodendron,208.Payena,423.Payera,530.Pearsonia,609.Pechuel-Loeschea,559.Pectinaria,454.Pectinaria,159.PEDALIACEAE,51,56,57,58,61,62,498,pl. 138.PEDALIACEAE,500.Pedaliophytum,499.Pedalium,499.Pedalium,499.Peddiea,381.Pedicellaria,215.Pedicularis,484.Pedilanthus,310.Pedrosia,260.Peganum,294.Peglera,300.Pegolettia,552,560.Peireskia,378.Pelargonium,290.Pelea,296.Peliostomum,489.Pelletiera,419.Peltophorum,250.Peltophorum,250.Pemphis,385.Penaea,380.PENAEACEAE,14,379,pl. 108.PENAEACEAE,379.Penianthus,201,202.Penicillaria,81.Pennisetum,81.Pentabrachium,320.Pentacarpaea,531.Pentaclethra,245.Pentadesma,362.Pentadiplandra,349.Pentagonia,481.Pentaloncha,530.Pentameris,99.Pentanisia,518.Pentanopsis,533.Pentapera,417.Pentarrhinum,448.Pentas,532.Pentaschistis,99.Pentasticha,109.Pentatrichia,560.Pentatropis,448.Penthea,151.Pentheriella,572.Pentodon,533.Pentopetia,445.Pentopetia,444.Pentopetiopsis,444.Pentzia,578.Peperomia,161.Peplidium,493.Peplis,384.Peponia,539.Peponium,539.Perdicium,552.Pergularia,448,453.Perianthostelma,448.Periblema,507.Perichasma,200.Perichlaena,496.Perideraea,577.Periestes,511.Periglossum,451.Perinerion,435.Peripeplus,524.Periploca,442,443.PERIPLOCACEAE,442.Peristrophe,514.Peristylus,151.Perithrix,443.Perotis,84.Perotriche,562.Perralderia,560.Perriera,300.Persea,211.Persea,211.Persica,242.Pervillaea,453.Petalacte,556.Petalactella,556.Petalidium,505.Petalidium,505.Petalodiscus,320.Petalonema,396.Petasites,567.Petersia,387.Petrobium,564.Petrophyes,232.Petroselinum,413.Petroselinum,414.Peucedanum,409.Peucedanum,408,409,612.Peyrousea,578.Phaca,270.Phaenocoma,557.Phaenohoffmannia,265,274.Phaeocephalus,584.Phaeomeria,147.Phaeoneuron,396.Phaeopappus,550.Phaeoptilon,187.Phagnalon,562,575,583.Phaius,157.Phalangium,132.Phalaris,94.Pharbitis,462.Pharnaceum,189.Phaseolus,277.Phaulopsis,505.Phaylopsis,505.Phelipaea,500.Phellolophium,410.Phenax,169Phialodiscus,338.Philippia,417,pl. 120.Phillipsia,506.Phillyrea,426.Philoxerus,183.Philyrophyllum,554.Phleum,95.Phloga,114.Phlogella,114.Phlomis,478.Phoberos,371.Phoebe,211.Phoenicophorium,113.Phoenix,110.Phormium,134.Phornothamnus,396.Photinia,240.Phragmites,101.Phrynium,149.Phrynium,148.Phycagrostis,74.Phygelius,492.Phylica,345.Phyllactinia,552.Phyllanthus,323,pl. 80.Phyllarthron,497.Phyllis,523.Phyllobotryum,370.Phylloclinium,370.Phyllocomos,120.Phyllocosmus,292.Phylloctenium,497.Phyllodes,148.Phyllopodium,493.Phyllorhachis,80.Phyllosma,297.Phylloxylon,270.Phymaspermum,580.Physacanthus,506.Physalis,483.Physaloides,483.Physanthyllis,260.Physedra,539.Physena,372.Physocaulis,406.Physospermum ,407.Physostigma,277.Physotrichia,410.Phytolacca,188.PHYTOLACCACEAE,9,12,14,187.Piaranthus,454.Picconia,426.Picnomon,551.Picralima,437.Picralima,440.Picridium,547.Picris,546.Pierreodendron,300.Pierrina,358.Pilea,169.Pilogyne,537.Pilostyles,177.Pimenta,392.Pimpinella,412.PINACEAE,1,10,pl. 2.Pinardia,566.Pinus,71.Piper,161,pl. 27.