776 



INDEX. 



Sitilias multicaulis (DC.) Greene, 35 



Rothrockii (A. Gray) Greene, 35 

 Sium cicutsefolium Gmel., 357, 399, 



588 



Smilaceae, 378, 577 

 Smilax herbacea L-, 363, 366, 378, 577 



hispida Muhl., 366, 379 

 Solanaceae, 405, 591 

 Solauum nigrum L., 405, 591, 622, 627 

 Solidago canadensis L., 363, 411,425, 

 539, 595, 627 



erecta Pursh, 369, 410 



flexicaulis L., 41, 539, 557 



hispida Muhl., 410 



missouriensis Nutt., 411 



mollis, 22, 23 



nemoralis Ait., 411, 596 



rigida L., 20, 21, 22, 411, 595 



rigidiuscula, 21 



rupestris, 20, 21, 22 



serotina Ait., 410, 539, 557, 627 



speciosa Nutt., 410 



ulmifolia Muhl., 410 

 Solorina, 236, 662 



saccata (L. ) Ach., 227, 252 

 Soiichus arvensis L., 593 



asper (I..) EH., 409, 593 

 Sophia hartwegiana (Fourn.) Greene, 

 30, 582 



incisa, 30 



pinnata (Walt.) Britton, 30 

 Sorghum, 550 

 Sparganiacese, 373, 571 

 Sparganium eury carpum Engelm. , 357, 



373, 571 



simplex Huds., 571 

 Spartina cynosuroides (L.) Willd., 357, 



375, 574 



Spermatophyta, 372 

 Sphacelaria, 199 

 Sphaerococcus, 205 

 Sphaerotheca, 424 



castagnei Lev., 424 



humuli (DC.) Burrell, 424 



mors-uvae (Schw. ) B. & C., 425 



pannosa Lev., 425 

 Sphagnum, 26, 199 



acutifolium Ehrh., 36 



fuscum Klinggr., 36 



girgensohnii Russ., 36 



medium Limpr., 36, 37 



Sphagnum 



recurvum parvifolium Sondtn., 37 



squarrosum Pers., 37 



teres squarrosulum (Lesq.) 



Warnst., 37 

 wulfianum Girg., 37 

 Spiraea salicifolia L., 390, 583 

 Spirodela polyrhiza Schleid., 355, 377 

 Spirogyra, 617 

 Sporobolus, 21, 23 



brevifolius (Nutt.) Scribn., 573 

 cuspidatus (Torr.) Wood, 573 

 heterolepis A. Gray, 573 

 Stachys palustris L., 358, 404, 428, 591 

 Staphylea trifolia L., 363, 395 

 Staphyleaceae, 395 

 Staurastrum crenulatum, 617 



minneapoliense Wolle, 612, 617 

 paradoxum Meyen. var. longipes 



Nordst, 612 



sebaldi Reinsch., 612, 617 

 Staurothele diffractella (Nyl.) Tuck., 



281, 290, 297, 300, 327 

 drummondii Tuck., 228, 275, 785, 



290, 328, 708 

 umbriua (Wahl.) Tuck., 274, 285, 



290, 298, 299, 327 

 var. colpima (Whubl.) Nyl., 



708 

 Steironema ciliatum (L.) Raf., 358, 



4oo, 558, 589 



lanceolata (Walt.) A. Gray, 589 

 Stephanodiscus, 610, 614 



niagarse Ehr., 613 

 Sterculia platanifolia Linn., 79 

 Sterculiaceas, 79 

 Stereocaulon, 220, 236 



condensatum Hoffm., 16 



coralloides Fr., 229, 261 



paschale (L.) Fr., 222, 224, 233, 



261, 278, 320, 662, 696 

 Sticta, 236 



amplissima (Scop.) Mass., 250 

 crocata (L. ) Ach., 250 

 fuliginosa, 250 

 limbata (Sm.) Ach., 229, 250 

 pulmonaria (L-) Ach., 250, 678, 



688 

 scorbiculata (Scop.) Ach., 232, 



251 

 Stigeocloniutn, 26, 617 



