Sphagnum Russowii var. Girgenso- 



hnioides. . 22 



" squarrosum ;5, 20 



" " var. semi- 



squarro- 



sum 20 



" " " specta- 



bile 20 



' * strictum 20, 22 



" subbicolor 19 



" subsecundum 5,21,83 



" " var. con- 



tortum 21 



" tenellum var. rubrum.. . 22 



' * teres 5, 6, 21 



" '* var. squarrosulum 21 



" " , ' * subsquarro- 



sum ... 21 



" Warnstorfii 22 



' ' Wulfianum. 20 



" " var. viride.. 20 



Spirographa 61 



Splachnum ampullaceum 14, 40 



Stereodon arcuatus 83 



** Haldanianus 83 



Stereophyllum Moelleri 31 



Sticta aurata 4 



' * fuliginosa 4 



" tomentosa 4 



' ' Weigelii 4 



Synalissa 61 



Systegium 28 



Taxithelium capillipes 8 



" Gottscheanum 8 



Tetraphis pellucida 23 



Tetraplodon bryoides 14 



Tetrapterum 30 



Thamnium 61 



Thelenella 61 



Thelia asprella 18, 44, 83 



' ' hirtella 44 



'* Lescurii 83 



Theloschistes flavicans 4 



Thelotrema 61 



" subtile 78 



Thuidium abietinum 43, 83 



' ' Blandowii 43 



" delicatulum 43,44,83 



' ' microphyllum ........ 43, 83 



" minutulum 43 



" Daludosum 7» 43 



" pygmaeum 43 



" recognitum 43, 44, 83 



" scitum 44 



' * virginianum 44 



Timmia bavarica 88 



" cucullata 40 



" megapolitana. . . .40, 86, 87 (f. 



1-5), 88 



Timmia norvegica 88 



Toninia 60 



Tortella 29, 30 



" caespitosa .39, 83 



* ' tortuosa. 39, 83 



Tortulaceae 34 



Tortula Bornmuelleri 90 



" caroliniana. . . .72, 74 (PI, V, f. 



i-io), 75, 76 



' ' desertorum 90 



* * grossiretis 66 



' ' latifolia 73 



' * laevipila 73 



** lepto-sy atrichia 70 



' ' monoica 66 



" mucrorifolia 83 



Dagorum 16, SSSS, 48, 73 



Dapillosa 73, 75 



parva 75 



' * pulvinata 73 



' ' robusta 70 



" ruralis. 91 



' ' trachyneura 92 



Trachyloma Fleischeri 8 



" indicum 8 



' * tahitense. 8 



Trematodon ambiguus 24 



Trichosteleum 8 



Trichostomum .29, 30 



' ' cylindricum 39 



' * flavovirens 29 



Tristichiopsis 9 



Tristichium 10 



Trypethelium. 61 



Ulota americana 39 



' ' calvescens 61 



' ' crispa 39 



" " var. crispula 39 



" Ludwigii 39 



Umbilicaria Dillenii 40 



Usnea 61 



" longissima 26 



Veisia. 30 



Verrucaria viridula 48 



Verrucidens immersus.. 69, 70 



" intermedius. . .68 (PI. IV, 

 f. la-if), 69 



" turpis 69 



Webera nutans 90 



" proligera 27 



" sessilis 23 



Weisia 28-30 



" crispata 29 



" oranica 8 



viridula 8,38 



Xanthocladium scabrifolium 31 



Xanthorea lychnea 64 



Z^godon Nowellii 37 



" Simsii 92 



