512 
Myxococcus incrustans 213, 214, 215, 
217. — macrosporus 217. — ruber 
214. — rubescens 217, 218. 
Myzomonas betae 319. 
Myszonema 327. 
N. 
Naevia pezizelloides Rhm. 342. — sp. 
342. 
Najadaceae 451. 
Najas 118. 
Napicladium laxum Bub. 319. 
Nardia obovata (N. E.) v. rivularis 
Schffn. 359. — sp. 26. 
Nasturtium sp. 206. 
Naucoria escharoides Fr. 465. — nim- 
bifer Brtzlm. 465. 
Navicula cocconeiformis Grg. 53. — 
minuscula Grun. 126. 
Neckeraceae 450. 
Nectria sp. div. 244, 245, 292, 293, 
470, 488. 
Nectriella sp. 292. 
Neea hermaphrodita Spe. Mre. 412. — 
— f. calvata Chod. Hssl. 412. 
pendulina Hmrl.413. — Schwackeana 
Hmrl. 424. Selloiana Hmrl. 424. 
— theifera Oerst. 412. 
Neesiella rupestris (N. E.) Schffn. 23. 
Neottia 118. — Nidus avis (L.) 322, 
444. 
Neottiella Höhneliana Rhm. 115. 
Nepeta Pannonica 115. — sp. div. 100, 
279. 
Nephrolepis 359, 448. 
Nerium Oleander 349. 
Neslia sp. 207. 
Nicotiana 372. — affınis 446. — Ta- | 
bacum 446. 
Nigella sp. 206. 
Nigritella 231. 
Niptera sp. 344. 
Nitzschia Palea (Ktz.) 126. 
Nolanea dissidens Brtzlm. 466. — pas- | 
cua (P.) 466. — sp. div. 466. — sub- 
posthuma Brtzlm. 466. 
Nostoce commune Veh. 47. — humi- 
fusum Carm. 48. — minutum 48. 
Nyetaginaceae 249, «o#, 43 7- 
Nyctalis sp. 462. 
Nymphaea Lotus 77. 
Nyssa 363. 
Nyssaceae 363. 
©. 
Ocellaria sp. 342. 
Odontia bicolor (A. S.) 439. — griseo- 
olivacea Höhn. 115. — sp. 488. 
Oedogoniaceae 452. 
Oedogonium 395, 423. 
Oenunthe fistulosa L. 71. — sp. div. 
36. 
Oenocarpus distichus 231. 
Oenothera Lamarckiana 79. 
Oidium 319. — albicans Rob. 237, 321. 
— lactis Fres. 237. 
Oldenlandia aretioides Vierh. 300. 
Omphalia sp. 244. 
Omphalea sp. div. 466. 
Onceidium 142. — pulvinatum Ldl. 142. 
— sphegiferum Ldl. 142. — tigrinum 
233 
Onobrychis sp. div. 209. 
Onopordon corymbosum WIllk. 112. — 
ilyrieum L. 112. — macranthum 
Shousb. 112. — sp. 269. 
Onosma sp. div. 99, 278. — stellulatum 
W. K. 99. — Tauricum Stev. v. vi- 
ride Borb. 99. 
| Ooceystis forma 415. — sp. div. 59, 
198. 
Ophiobolus minor Bub. 319. 
Ophioglossaceae 76. 
Ophioglossum retieulatum L. v. polyan- 
gium Chr. 38. 
Ophionectria ambigua Höhn. 115, 227, 
Ophrys aranifera Huds. 446. — ovata 
L. (Crtz. hb) 444. 
Orbicula sp. 244. 
Orbilia albomarginata Rhm. 344. — sp. 
div. 344, 470. 
Orchidaceae 77, 229. 
Orchis 231. — sp. div. 230 — ustu- 
latus L. lus. integrilobus Sabr. 323. 
Origanum sp. 106. 
Orlaya sp. div. 34, 211. 
Ornithidium divaricatum 138, 141. 
Ornithogalum sp. div. 281. 
Orobanche sp. div. 219. 
Orobus Nicolai Rohl. 277. — sessili- 
folius v. coeruleus Pant. 276. 
Orthantha sp. 165. 
\ Orthorrhynchium 231. 
Orthotrichum sp. 471. 
Öscillaria 418. — limosa 331. 
Öscillatoria sp. 48. 
Ossaea amygdaloides Tr. ß. ambigua 
Cgn. 195. — — f. pauciflora Krass. 
Rech. 194. — sp. div. 194, 195. 
Ostrya carpinifolia 389, 390. 
Otidea leporina (Btsch.) 227. — 
div. 470. 
Ouvirandra 8. — Bernieriana 8,9. — 
Hildebrandtii Eichl. 8. 
Oxybaphus cretaceus 255. 
sp. 
