510 
Polyporus sp. div. 246, 247. 
Polysiphonia 136, 139. 
Polystichum Lonchitis Roth. 249. 
Polystictus sp. div. 245, 246. 
Polytrias sp. 122. 
Polytrichium sp. 202. 
Populus alba 372, 375. — Euphratica 
485. — tremula L. v. orbicans Murr. 
398, 471. — tremuloides 372. 375. 
Poria sp. div. 245, 246. 
Potamogeton crispus 484. — lucens 
484. — natans 484. — perfoliatus 
484. — sp. 144. 
Potamogetonaceae 405. 
Potentilla sp. 202. 
Poterium sp. 117. 
Prangos ferulacea 291. 
Prasium sp. 143. 
Primula 405. — chinensis 233. 
Prosopis Stephaniana 485. 
Proteaceae 36. 
Protomerulius sp. 245. 
Prunus avium 369, 
Mahaleb 373, 375. 
Przewalskia tangutina Mx. 119. 
Psatyrella sp. 246. 
Pseudochantransia Brand. 31. 
Pseudodiplodia herbarum Strass. 473. 
Pseudolecania Cesati Zhlbr. 17. 
Psichohormium 398. 
Psilotum flaccidum Wall. 286. 
Psoralea bituminosa 200, 221, 226. — 
sp. 117. 
Pterostylis 103. — longifolia 99. 
Ptilotrichum 93. 
Puccinia sp. div. 246, 247. 
Pulmonaria sp. 398. 
Puya chilensis 151. 
Pycreus sp. 166. 
Pyramidochrysis Pasch. 83. 
373. 376. 

0. 
Quercus 391. Cerris L: 329. 
pedunculata 331. — Robur L. 329, 
330, 378. — sp. div. 28, 144. — | 
velutina Lam. 330, 381. 

R. 
Ramalina canariensis Star. 20. — 
fraxinea v. calicariformis Nyl. 20. 
— Latzeliü Zhlbr. 18. — sp. div. 20, 
21. 
Ranunculaceae 363. 

Robinia hispida 
Ranunculus 178. — aquatilis 42, 484. 
— Hornschuchii X montanus 361. 
— Poellianus Murr. 361. — sp. div. 
115, 202. 
Raphanus sp. 116. 
Raphidonema brevirostre Scherff. 285. 
Rapistrum sp. 116. 
Reseda odorata 324. — sp. 116. 
Restio 303. — sp. div. 166. 
Rhabdospora Betonicae v. Brunellae 
Bresad. 473. — Menthae Strass. 473. 
— Strasseri Bubäk 473. — Telephvi 
Strass. 473. 
Rhagadiolus sp. 141. 
Rhaphidostegium Welwitschii 274. 
Rhinanthaceae 25. 
Rhinanthus crista Galli 97. — sp. 202. 
Rhizocarpon variegatum Stnr. 24. 
Rhyzoctonia 31, 
Rhododendron album 419. — apoanum 
422. — Chamaecistus 402. — ferru- 
gineum 402, 409. — hirsutum 402, 409. 
— intermedium 409. — malayanum 
422. 
Rhodymenia 139, 140. — ligulata 109. 
Rhus Cotinus 344. 
Rhynchosia precatoria 222. 
Rhynchosphaeria sp. 246. 
Rhynchospora sp. div. 166. 
Rhyticarpus Sond. 364. 
Riccia bifurca 434, 436. — Bischoffit 
Hüb. v. eilüfera 274. — — f. montana 
Stph. 274. — ciliata 436. — commu- 
tata 436. — fluitans 484. — glauca 
436. — — v. major 435, — glauces- 
cens Carr. 433. — Gougetiana Mnt. 
274. — — v. armatissima Lev. 274. 
— Lescuriana Aust. 434, 435. — — 
v. subinermis Wrnst. 436. — Les- 
quereuxii 434, 436. — Lindenbergü 
436. — marginata Lndbg. 434, 436. 
— Michelii Raddi 434, 435, 436. — 
pedemontana Stph. 274. — tumida 
auct. brit. 434. — Warnstorffii 436. 
Rieinus 385. 
Rinodina Bischoffii 78, 79. — v. medi- 
terranea Flag. 79. — canella Arn. 78. 
— crustulata Arn. 77. — dalmatica 
Zhlbr. 77. — Dubyanoides Arn. v. 
evoluta Zhlbr. 79. — mediterranea 
Flag. 79. — sp. div. 77, 78, 79, 80. 
— subcanella Zhlbr. 78. 
222, 226, 319. 
pseudacacıa 198, 199, 221, 226, 344, 
346. 
Rodigia sp. 141. 
Romulea Mar. 30, 237, 303, 362. — 
Bulbocodium 303. 
Roridula dentata 244. 
