INDEX. 1123 



censis 843 ; subjulacea 842. — Œnanthe Dregeana 465; exaltata 450; filiformis 

 465 ; fistulosa 465. — Oligomeris spathulata app. III, 98. — Olyra lalifolia 21; 

 Schnetzleri 30. — Onobrychis Bellevii 75; Gsertneriana 607; melanotricha 74, 

 75; nitida 74. 75; oxyptera 74. — Onopordon Illyricum 281. — Onoseris 

 paniculala 20. — Onosma cœrulescens 759. — Oocystis amphitrichia 298; 

 ciliata298; crassa296; geminata 295; gigantea 295; lacustris 119, 291, 296, 

 312; Nœgelii 295; solitaria 296, 297. — Opegrapha Bonplandi 17; Bonplandi 

 var. abbreviala 1 7 ; Bonplandi var. conglomérat 23; varia var. pulicaris 23; 

 virescens 23. — Operculina pteropus 1051; tnberosa 820; Turpethum 380, 820. 

 — Ophiorhiziphyllon laxum 645; macrobotryuin 64-6. — Oplismenus Hum- 

 boldtianus 21; loliaceus 17, 18, 21. — Orchis angustifolia app. I, 2, 6; eorio- 

 phora269; fusca 269; galeata 269; globosa 269, 1016, 1017; globosa X Gym- 

 nadenia conopea 1016, 1017, 1018; latifolia 269 ; maculata 269; mascula 269; 

 militaris 269, 759; morio 269; pyramidalis 269; simia 269; ustulata 269; valle- 

 siaca 1016, 1017, 1018. — Origanum hirtum 282. — Ornithogalum Huguenini 

 267; nutans 267; pyrenaicum 267; uinbellalum 267. — Orobanche Laserpitii 

 266, 576; major 573; rapum 265. — Orobus cyaneus 609; sessilifolius 609; 

 Tempskijanus 608, 609; vernus 609. — Orophochilus stipulaceus 658. — 

 Orthoclada rarifolia 21. — Orthosticbella ßlamentosiila 204. — Orthostichi- 

 dium pentagonum 205; siibtetragonum 205; tetragonum 205. — Orthotrichum 

 verrucatum 850. — Orygia decumbens app. III, 74. — Oryza sativa 21; sativa 

 f. parviflora 21. — Oscillaria tenuissima 312. — Oscillatoria nigra 313; rubes- 

 cens 290, 292. — Ostracoblabe implexa 713. — Ottoa œnanthoides 455, 456, 

 459, 460. — Oxalis acetosella var. lilacina app. I, 2, 4. — Oxyria digyna 263, 

 483. — Oxytropis albana 607; dioritica 607; Griffithii 607; Kermanica 591, 

 606, 607; Lehmanni 607; persica 607; savellanica 607. — Oyedaea acuminala 

 20 ; macrophylla 20. 



achyrhizus angulatus 19. — Pachystachys Biedeliana 679. — Padina 

 Pavonia 976, 989. — Psederota Bonarola 482. — Pœonia albiflora 1095; 

 arborea 1096; edulis 1095; fruticosa 1096; lacleoflore 1095; Moutan 1095; obo- 

 vata 1055, 1095; officinalis 1095; oreogeton 1095; papaveracea 1096. — Palla- 

 vicinia Baldvini 843; cylindrica 843; erimona 81, 102; longispina 81, 102.; 

 Lyellii 81 ; norvegica 81 ; simplex 813, 847 ; xiphoides 847. — Palmella 

 rniuiata 292. — Pandorina Morurn 291, 313, 514, 516. — Panicum amplexifo- 

 liurn 25; brevifolimn 21 ; costarjcense 21; decumbens 21; disticlmm 21; gluti- 

 nosurn 18; lanalnni 17, 18, 21; lanatum f. glabrescens 18; laxum 25; nionosta- 

 chyum 21 ; piilcliellum 18, 21; sanguinale 21; sanguinale var. longiglume 21, 

 25; trachyspermum 21. — Papaver aculeatum app. III, 88; alpiuum 470. — 

 Papillaria oigrescens 22; nigrescens var. illecebra22; Würszewi-chzii 205. — 

 Paratbeîium superans 23. — Paris quadrifolia 570 — Parmelia lïiklebrandtii 

 I'. sorediifera 22; Hookeri 17, 22; stenophylla 22 ; liliacea var. rimulosa 17. — 



