TWDEX. 



199 



Page 

 Plagiochila trapezoidea, Ldbg. . 96 



variegata, Ldbg. .... 98 



uniformis, Mitt 98 



Wightii, Ldbg 95 



Plantago lusitanica, L 43 



PlATYPHYLL.E 107 



Plumbaginese of Greenland and 



Arctic America 84 



Polygoneae of Greenland and Arctic 



America 84 



Polygonum maritimum, L. . . . 43 

 Polypodiacese of Greenland and 



Arctic America 85 



Ptilidue 102 



Ptilidium, Nees v. E. 102 



ciliare, Nees v. E. . . . . 102 



trichophylium, Mitt. . . . 102 



Ptychanthus, Nees v. E. ... 109 



striatals, Nees v. E. ... 109 



Wightii, Oottsche .... 109 



Pyramidium, Boiss. . . . 133, 179 



Griffithianuiu, Boiss. . . . 179 



Radula, Nees v. E. 107 



colliculosa, Mitt 107 



complanata, Dumort. . . . 107 



formosa, Nees v. E. ... 107 



Javanica, Oottsche . . . 107 



obscura, Mitt 107 



Ranunculacese of Greenland and 



Arctic America 82 



RaPHANES 134 



Raphanus, Linn 134, 180 



Raphanistrum, DC. . . . 180 



sativus, Linn 180 



Reboulia, Nees v. E. 127 



graminosa, Griff. . . . .127 



hemispbxerica, Raddi . . .127 



Reseda suffruticulosa, L. ... 37 

 Retama monosperma, L. ... 38 

 Rhamnus Alatemus, Linn. ... 37 

 Rhus Oxyacantha, Schousb. . . 37 



Riccia, Micheli 127 



ciliata, Hoffm 127 



crispatula, Mitt ] 27 



crystallina, Linn 127 



discolor, L. Sf L 127 



fluitans, Linn 1 28 



squamata, Nees v.E. . . . 128 



RiccietE 127 



Romneyeao 73 



Rosacea 83 



Rubia longifolia, Poir 39 



Ruscus Hypophyllum .... 44 



Ruta angustifolia, Pers 37 



Sareomitrium, Corda . . . .124 



multifidum, Mitt 124 



pingue, Mitt 124 



Saxifrages 83 



Scabiosa Columbaria, L. ... 40 

 Scnpania, Ldbg 101 



Page 

 Scapania contorta, Mitt. . . . 101 



fei-ruginea, L. 8f Ldbg. . . 101 



lepida, Mitt 101 



planifolia, Nees v. E. , . . 101 



Scolymus hispanicus, L 40 



Scrophularia canina, L 42 



laevigata, Vdhl 42 



ScrophularineeD of Greenland and 



Arctic America 84 



Sedum reflexum, L 39 



Sendtnera, Endlkher .... 102 



diclados, End 1 102 



juniperma, Nees v. E. . . . 103 



ochroleuca, Nees v.E. . . 103 



Woodsii, Endl 102 



Senecio crassifolius, Willd. ... 40 



SlSYMBRIEiE 130 



Sisymbrium, Linn. . . . 131, 156 



Alliaria, Scop 163 



axillare, H.f.SfT. . . . . 162 



Cabulicum, IL.f. $ T. . .161 



Column®, Linn 157 



deltoideum, H.f. $ T. . . 163 



fobosum, H.f. SfT. . . .160 



Griffithianum, Boiss. . . . 159 



Himalaicum, H.f. Sf T. . . 160 



humile, C. A. Meyer . . . 163 



Irio, Linn 157 



irioides, Boiss 157 



lasiocarpum, H.f. $ T. . . 162 



Loeselii, Linn 156 



minutiflorum, H.f. if T. . 158 



mollissimum, C. A. Meyer . 160 



Pannonicum, Jarq. . . . 157 



planisiliquum, H.f.QT. (gen.) 159 



pumilum, Stephan. . . . 159 



rigidulum, Dene 158 



rupestre, Edgew 1G2 



salsugineum, Pall. . . . 159 



Sophia, Linn 158 



strictum, H.f#T.. . . 161 



Thalianum, Gay .... 163 



Thomsoni, H.f. .... 161 



torulosum, Desf. .... 163 



Wallichii, H.f. $ T. . . . 158 



Solanum humile, Bernh. ... 42 



Sonchus tenerrimus, L 41 



Spergularia procumbens, Vahl . 37 

 Spharocoma, a new genus of Cary- 

 ophyllea from Aden in Arabia 



Felix 15 



■ Hookeri, Anders 16 



Sphagnoecetis, Nees v. E. . . . 100 



communis, Nees v. E. . . 100 



Spruce, R., on the mode of branch- 

 ing of some Amazon Trees . . 3 

 Spruce, Rich., on the Mosses of the 



Amazon and Andes .... 45 

 Stachyurus liimalaicus, Hook. f. 6f 

 Thorns 55 



