(Lyell) v. gracillima Schfin. 200, 251. 
— scalaris (Schrd.) v. procerior Schffn. | 
200, 251. — sp. 133. 
Nardus sp. 134. 
Nasella caespitosa Gris. 10. 
Nasturtium sp. 342. 
Naumburgia impunctata Frn. 444. — 
thyrsiflora Rehb. 444. 
Navicula sp. 49. 
Neckera sp. div. 37, 370. 
Nepeta sp. div. 30, 387, 407. 
Nephrodium Labrusca (Hk.) v. Boschae 
ac. 244. — Vitis Rac. 244. 
Neslia sp. 481. 
Nesolechia punctum Mss. 35. 
Netrium 456° 
Nicotiana affinis Moore 199. — alata 
Lk. 199. 
Nigella arvensis 414. 
Nigritella sp. div. 28, 341. 
Niphobolus 71, 125. 
Nitella 126. 
Nostoce verrucosum Vauch. v. Pseudo- 
Zetterstedii Stckm. 35. 
Nothopanax 219. 
0. 
Octodiceras sp. div. 117, 132. 
Odontites 197, 246, 415. — sp. 31. 
Oedogonium 359. — Lundellii Hrn. 199. 
— rufescens Wttr. 199. — Virce- 
burgense Hrn. 200. 
Olea sp. 145. 
Oligotrichum sp. 132. 
Omphalodes sp. 387. 
Omphalothrix sp. 404. 
Oncophorus sp. 115. 
Onobrychis elata Boiss. Bal. 494. — 
sp. 369. 
Onoclea sp. div. 27, 409. 
Ononis sp. div. 148, 369. 
Onopordon sp. 36. 
Onosma sp. 336. 
Onychonema 456. 
Oocardium”456. 
Opegrapha caesio-atra Star. 81. 
Ophioglossum pendulum L. v. Soloense 
Rac. 244. 
Ophrys sp. div. 28, 55, 145, 168, 368. 
Opoponax bulgaricum Vel. 41, 52. — 
Chironium 51, 52. — orientale Boiss. 
51. — persicum Boiss. 51. 
Opuntia 504. — polyantha 272. 
Orchis!mixta Domin 358. — sp. div. 
55, 131, 145, 384, 413, 506. 
Oreochloa sp. 340. 
Oreopanaz, Sanderiana 220. 
Orlaya sp. 147. 
527 
\ Ornithogalum sp. 55. 
Ornus sp. 145. 
Orobanche epithymum v. major 337. 
— sp. div. 31, 345, 388, 404, 487. 
| Orobus 272. — pannonicus Jeq. v. Su- 
| meni Dav. 495. — sp. div. 23, 50, 148. 
Orostachys sp. 66. 
Orthothecium rufescens f. minor gracile 
Bradl. 124. 
Orthotrichum sp. div. 243, 370. 
Oryzopsis fascieulata Hack. 10. — holei- 
formis Hack. 11. — sp. div. 86. 
Oscillaria 286. — beggiatoides Arz. 286. 
Osterdamia sp. 417. 
Ostrya sp. div. 145, 148, 168. 
Othophora spectabilis 221. 
Otostegia Bth. 137. — repanda (R. Br.) 
137. 
Oxalis 221, 271, 272. — sp. 386. 
Oxycoccos sp. 485. 
Oxypetalum 502. 
Oxyria sp. 438. 
Oxytropis sp. 369. 
P. 
Paederia foetida 184. 
Paederota sp. 149. 
Paeonia peregrina Mil. 336. 
Paludella sp. 37. 
Panax longissimum Hk. f. 217. — tri- 
foltiata 218. 
Pandanmus 503. 
Panicum sp. div. 86, 417, 418. 
Pappophorum sp. 418. 
Paris sp. 384. 
Paritium abutiloides 221. 
Parmelia aspidota v. elegantula Zhlbr. 
36. — Bouteillei Dtm. 285. — luteo- 
notata Stnr. 457. 
\ Passerina hirsuta L. 230, 231. 
' Passiflora 272. 
| Pastinaca sativa L. 289. 
Patrinia sp. div. 112. 
Paullinia sorbilis 221. 
Pavetta sp. div. 365, 366. 
Pavonia 221. 
Paxillus sp. div. 298, 300. 
| Peddiea Fischeri Engl. 152. 
Pedieularis grandiflora Fsch. 405. — 
sp. div. 26, 31, 148, 345, 388, 405, 406. 
| Pellia sp. div. 133, 370. 
Peltaria sp. div. 168, 480. 
Peltiphyllum peltatum 272. 
Pemphis sp. 503. 
Penium 456. 
Pennisetum sp. 418. 
Peplis sp. 30. 
Peridinium sp. 6. 
