456 
Nephroselmis sp. 251. 
Nerium sp. 330. 
Neslia sp. 360. 
Nesolechia geographiei Steiner 149. 
Nieotiana sp. 144. 
Nitella Chevallieri Hy. 104. 
Nitzschia sp. div. 32. 
Nordstedtia Borzi 428. 
(Nordst.) Borzi 57. 
Nostoe sp. div. 31. 
Nuphar affıne Harz 139. — sericeum 
Lang. var. denticulatum Harz 139. 
Nymphaea sp. #35. 
0. 
Ochlochaete Crn. 428. 
Odontia sp. 18T. 
Odontidium hiemale 
33. 
Odontoschisma denudatum var. elon- 
gatum Ldbg. 323. — sp. 398. 
Oedogonium sp. div. 30. 
Oenanthe sp. div. 108, 290, 359, 379. 
Oenothera 50, 294. — sp. 146. 
Oligomeris sp. 329. 
Olpidium sp. 63. 
Omalveline Granatensis Wk. 102. 
Omphalodes sp. 318. 
Oncobyrsa Ag. 428. 
Onosma sp. div. 10, 379. 
Onothera 294. 
Ooeystis sp. 30. 
Opegrapha sp. 187. 
Ophioeytium 349. 
Ophioglossum sp. 329. 
Ophrys sp. div. 23, 104. 
Orchideae 52, 142, 327. 
globosa 
(Kütz) var. div. 
Orchis angustifolia Rb. 291. — — var, 
Blyttü Kl. f. latissima 291. — — 
var. Haussknechtii Kl. 291. — — var. 
recurva Bl. 291. — — var. Russowü 
X incarnata L. 291. var. 
Traunsteineri Saut. 291. — cordigera 
Fries. 291. — — var. bosniaca Beck. 
291. — — var. foliosa Schur 291. 
— — var. rivularis Heuff. 291. 
var. Jocheliana Kl. 291. 
Lehmannäü Kl. 291. — sp. div. 23, 
145, 288, 380. 
Orobancheen 52. 
Orobanche sp. div. 66, 146. 
Orthosira sp. 63. 
Orthotrichum sp. div. 411. 
Öscillaria sp. div. 31. 
Oscillatoria sp. #38. 
Oxalis sp. div. 257, 361. 
Oxocarpum glabrum Wk. 102. 
Ozytropis sp. div. 190, 362. 
pP. 
Pachysandra procumbens Mehx. 317. 
Pallavieinia hibernica Gray 265. 
Pandorina sp. div. 202, 249, 251. 
Pannaria sp. div. 186, 352. 
Panus sp. 64. 
Papaver coneinnum Murr 176. — 
div. 175, 318. 
Parmelia sp. div. 186, 351. 
Pastinaca vaginans Vel. 26. 
Pediastrum sp. div. 30, 249, 250, 251, 
350. 
Pedicularis 
379, 436. 
Peganum sp. 379. 
Pellia endiviaefolia Dum. 265. 
264. 
Peltigera sp. div. 231, 352. 
Penieillium luteum Zuk. 161. 
Penium sp. 382. 
Peplis sp. 19. 
Perichaena corticalis 135. 
Peridermium Plowrightü 
— Stahlü Kleb. 14. 
Peridinium sp. div. 251, 346. 
Periphlegmatium Ktz. 428. 
Periploca sp. 329. 
Peronospora viticula 27. — sp. 63. 
Peronosporeen 435. 
Pertusaria Pentelici Steiner 149. — 
sp. div. 189, 231. 
Petasites offieinalis Mch. var. glabrius- 
culis Glb. 391. — sp. div. 322, 379. 
Peucedanum aegopodioides Vand. 372. 
— sp. div. 65, 359. — Thraeieum 
Vel. 26. 
Peziza sp. 65. — sp. Schlb. 60, 
Pezizella sp. 188. 
Phacelia sp. 144. 
Phaeidia sp. 188. 
Phacotus lenticularis (Stein) Perty. 
247. — — var. globulosus Frze. 248. 
— — var. spirifer Frze. 248. 
Phacus longicaudus (Ehrbg.) Duj. 250. 
— sp. div. 249, 250. 346. 
Phalaecrocarpum arg Wk. 102. 
Phalaropus sp. div. 3 
Phaseolus 435. 
Phegopteris sp. 67. 
Phelipaea sp. 146. 
Phialea nigrofusca Rehm. 59. 
19. 
Phlaeophila Hauk. 428. 
sp. 
sp. div. 108, 172, 288, 
—'8p. 
Kleb. 141. 
