474 



H. CORREVON 



Penthorum sedoides, 279. 

 Pentstemon, 279. 

 Pericome caudata, 281. 

 Peraettya, 281. 

 Perovskia atiiplicifolia, 281. 

 Petagnia saniculaefolia, 282. 

 Petalostemon, 282. 

 Petasites, 278. 

 Peti'ocallis pyrenaica, 282. 

 Petrocoptis Lagascœ, 282. 

 Peucedanum, 282. 

 Phaca, 282. 

 Phalangium, 282. 

 Phaseolus perennis, 282. 

 Philesia magellanica, 283. 

 Phlomis, 283. 

 Phlox, 283. 



Phygelius capensis, 284. 

 Phyllodoce cœrulea, 284. 

 Physalis, 284. 



Physaria dydimocarpa, 285. 

 Physochlaina orientalis, 285. 

 Physostegia virginiana, 285. 

 Pliyteuma, 285. 

 Pinguicula, 286. 

 Pinus, 287. 

 Plantago, 287. 

 Platantliera, 287. 

 PJatycodon, 287. 

 Pleurospennum, 288. 

 Plumbago Larpent*, 288. 

 Poa, 288. 

 Podophyllura. 288. 

 Polemonium, 289. 

 Polygala charnsebuxus, 289. 

 Polygonatum, 290. 

 PolygonuiiQ, 290. 

 Polyscheraone nivalis, 291. 

 Potentilla, 291. 

 Poterium, 293. 

 Pratia angulafca, 294. 

 Prenanthes purpurea, 294. 

 Piimula, 294. 

 Prosartes, 301. 

 Priva laevis, 301. 

 Pranella, 301. 

 Psoralea, 301. 

 Ptarmica, 301. 

 Pterocephalus Parnassi, 301. 

 Pulmonaria, 301. 

 Puschkinia, 302. 



Pycnanthemumlanceolatum, 303. 

 Pyrola, 302. 

 Piilsatilla, 303. 

 Purshia tridentata, 303. 

 Putoria calabrica, 303. 

 Pyrethrum, 303. 

 Pyxidanthera barbulata, 303. 



Pvamonda, 303. 

 Ranunculus, 304. 

 Rehmannia, 305 

 Reseda glauca, 305. 

 Reineckia carnea, 305. 

 Rhamnus, 305. 

 Rhaponticum, 306. 

 Rhazia orientalis, 306. 

 Rheum, 306. 

 Rhexia virginica, 306. 

 Rhizobotrya alpina, 307. 

 Rhodiola,'306. 

 Rhododendron, 307. 

 Rhodora canadensis, 307. 

 Rindera canescens, 308. 

 Rodgersia, 308. 

 Rohdea japonica, 308. 

 RomanzofBa sitchensis, 308. 

 Romneya Coulteri, 308. 

 Romulea, 309. 

 Rosa, .309. 



Roscoea purpurea, 310. 

 Rosmarinus, 310. 

 Rubus, 310. 

 Ruellia ciliosa, 310. 

 Rumea, 310. 

 Ruscus, 311. 

 Ruta, 311. 



Sagina, 311. 

 Sai'ix, 312. 



Sarabucus racemosa, 312. 

 Samolus Valerandi, 312. 

 Sanguinaria canadensis, 312. 

 Sanguisorba, 313. 

 Sanicula, 313. 

 Santolina, 313. 

 Saponaria, 314. 

 Sarothamnus Scoparius, 314. 

 Sarracenia purpurea, 314 

 Satureya, 314. 

 Saururus cemuus, 315. 

 Saussurea, 315. 



