- Nasturtium, 54, 69, 82, 83, 95 34°, 
_ Nathusia, 235. 
Navarretia, 61. 
Navicula, 28. 
Nazia, 64. 
Neckeria, 53, 70, 385. 
Negundo, 376. 
Nelumbo, 31, 35°. 
Nemopantnhes, 55. 
_ Neohenrya, g7. 
Neottia, 63. 
Nepeta, 62,86, 144. 
-Nephroma, 248. 
Nerium, 86. 
Nestronia, 62. 
Nicandra, 61, 385. 
Nicotiana, 347. 
Nidularia, 68. 
Nitella, 194, 230. 
Nitzschia, 28. 
Nostoc, 124, 200, 
_ Notholzna, 2g. 
Notylia, 260. 
“a aga a 
uphar, 239. 286. 
E Neniphica: 246. 
_ Nymphodes, 60. 
_ Nyssa, 331. 
Obolaria, 58, 60, 197. 
Odontopteris, 197. 
- CEnothera, 68, 81, 143, 193, 197» 3445 385+ 
Oldenlandia, 384. 
Oldhamia, 159. 
Oligomeris, 54 
— Olneya, 103. 
Omphalea, 25. 
Oncidium, 235, 260. 
_ Onobrychis, 107. 
— Onoclea, 65, 284. 
Ononis, 32. > 
Onosmodium, 45. 
- Osmorrhiza, 57295198, 197, 242. 
Osmunda, 199. ee 
2 sogabee 274. 
Us! 332. 
Bala 89, 138, 246, 376, 383. 
Oxybaphus, 62. 
‘Oxycoccus, 271. 
a, 244. 
Oxytropis, 240. 
wa, 149. 
allavicinia, 99. 
Palmifolia, 65. 
dani ‘ 
-Panicularia, 64, 385. : 
Panicum, 146, 286, 340, 380, 386. 
-Papaver, 98. 
Xii 
Parkinsonia, 103. 
Parmelia, 248, 260. 
Parnassia, 241. 
Parthenium, 66. 
Pasithea, 347. 
Paspalum 99- 
Passiflora , 36, 143, 237, 323, 345- 
Pastinaca, 143, 376. 
Pavia, 55. 
Pavonia, 54, 232. 
Pawia, 55. 
Pecopteris, 197. 
Pedicularis, 187, 244. 
Pelargonium, 17, 86. 
Pellzea, 29, 383. 
Pellia, 247, 270. 
Peltigera, 248. 
Penium, 69. 
Pentagonia, 59, 61. 
Pentagcnium, 56. 
Pentagonocarpus, 55. 
Penthorum, 306. 
Penstemon, 15, 89, 278, 350. 
‘Peperomia, 48, 254, 347- 
Pericularia, 83. 
Perityle, 233. 
Perezia, 266, 298, 384- 
Peronospora, 81, 136, 199 278- 
Persea, 95, 332- 
Pestatozzia 198. 
Petalostemon, 56. 
Petasites, 243. 
Peucedanum, 70. 
Phacelia, 71, 196, 384. 
Phacidium, 343. 
Phalaris, 99, 164, 386. 
Phaseolus, 56, 206, 209, 298. 
Phegopteris, 182. 
Philadelphus, 71, 344. 
Philibertia, 383. 
Philonotis, 70, 247. 
Phieum, 246, 336, 382- 
Phlox, 60, 95, 225, 376+ 
Phoenix, 347. 
Phoma, 257. 
Phryma, 62. 
Phrymium, $5, 86 
Phylladora, 236. 
Phyllanthus, 62. 
Phyllitis, 65. 
Phyllocactus, 260, 387. 
Phyllodium, 107. 
Phyllosiphon, 322. 
Phyllosticta, 25, 85, 198, 232. 
Physalis, 102, 147. 
Physalodes, 61, 385. 
Physalospora, 100. 
Physeria, 53, 68. 
Physarium, 54. 
Physocarpus, 57- 
Picea, 134, 182, 245, 334. 
Pilea, 63, 382. 
Pilocarpus, 235. 
Pilocereus, 387. 
Pilophorus, 249. 
Pilotrichella, 70. 
Pilularia, 65. 
Pimemta, 95. 
»Pinguicula, 31. 
_ 285, 297+ 343, 387. 
Piper, 47, 254. 
Piptadenia, 135. 
Piscidia, 56, 136. 
Pisonia, 137. 
Pisum, 210. 
Pitcairnia, 66, ' 
Pithecolobium, 56, 103, 199 
Pithium, 135. ; 
Pittiera, 279. 
Pittusporum, 86, 
Pinus, 11, 31, 71, 100, 136, 165, 168, 1975 
