INDEX 



141 



Spiraea latifolia, 46; tomentosa, 46, 84 



Spiranthes cernua, 26 



Sporobolns vaginae florus, 109 



Stachys palustris, 51 



Staphylca trifolia, 67 



Steironema ciliatum, SO 



Stellaria media, 66; pubera, 66 



Stomoisia cornuia, 122 



Stropharia semiglobata, 26 



Strophostyles helvola, 25, 108, 131 ; umbel- 

 lata, 85 



Svenson, H. K. A leafy form of Hyperi- 

 cum gentianoides, 36; Ecology of the 

 New York area, lecture, 64 



Symphoricarpus orbiculatus, 87; vulgaris, 



' 87 

 Symplocarpus foetidus, 67 



Syndesmon thalictroides, 43 



Talinum teretifolium, 61 



Tanacetum vulgare, 25 



Taraxacum officinale, 67 



Taxodium distichum, 81 



Taxus baccata var. canadensis, 65; cana- 



densis, 43 

 Teucrium occidentals, 51 

 Thalictrum dioicum, 43, 65 ; polygamum, 43 

 Thelephora multipartita, 38 ; palmata, 38 

 Thlaspi arvense, 66 

 Tiarella cordifolia, 67 

 Tithymalus heiioscopia, 83 

 Tradescantia virginiana, 23 

 Tragopogon pratensis, 23, 49 

 Trapa natans, 122 

 Tremella intumescens, 38 

 Tremellodendron candidum, 38 ; merisma- 



toides, 38 

 Tremellodon gelatinpsum, 129 

 Triadenum virginicum, 83 

 Triclisperma paucifolia, 44 

 Trifolium, 93-96 ; agrarium, 46 ; arvense, 



108; incarnatum, 85, 108; pratense, 46; 



repens, 67 

 Trillium erectum, 51, 67; grandiflorum, 67; 



nivale, 61 ; sessile, 61 ; undulatum, 61, 67 

 Tn'ocfta /Zat/a, 92, 109 

 Trollius laxus, 65 

 Tussilago Farfara, 67 



Ulmus americana, 47, 66 ; fulva, 66 

 Uniola laxa, 92 



Usnea barbata, 80; florida, 80 

 Ustilago seae, 42 



Utricularia inflata var. minor, 127 

 Uvularia grandiflora, 67; perjoliaia, 51, 67; 

 sessilifolia, 67 



Vaccinium angustifolium, 66, 86, corymbo- 



sum, 66, 125 ; vacillans, 48, 86 

 Vancouveria hexandra, 43 

 Veratrum viride, 51 

 V erbascum blattaria f. albiflorum, 109 ; 



phlomoides, 50 

 Verbena hastata, 50, 90; f. albiflora, 50; 



officinalis, 90 ; peruviana, 90 ; urticifolia, 



50, 90 

 Veronica agrestis, 90 ; arvensis, 66 ; didy'ma, 



66 ; filiformis, 66 ; peregrina, 66 ; serpylli- 



folia, 66 

 V eronicastrum virginicum, 50 

 Viburnum alnifolium, 67 ; lantanoides, 49 ; 



nudum, 26; prunifolium, 87, 108; £n/o- 



frwra, 49 

 FtWa caroliniana, 67 ; cracca, 108 ; sativa, 



85 

 Ft'o/a affinis, 44 ; arvensis, 66 ; blanda, 44, 



66 ; canadensis, 66 ; conspersa, 44, 66 ; 



cucullata, 66 ; fimbriatula, 57, 66 ; m- 



cognita, 66 ; lanceolata, 57 ; odorata, 66 ; 



var. a/bo, 81 ; pollens, 66 ; palmata, 66 ; 



papilionacea, AA ; pcdata var. lineariloba, 



AA ; pensylvanica, 66 ; primulifolia, 57, 



81 ; pubescens, 66 ; rcnifolia, 66 ; rostrata, 



66 ; rotundifolia, 66 ; sagittata, 56 ; 



Selkirkii, 66; septentrionalis, 66; .yoro- 



n'a, 56, 66; striata, 66 

 Viorna urnigera, 81 

 V olvaria bombycina, 40 



Wahl, Herbert A. Alternation of genera- 

 tions and classification with special ref- 

 erence to the teaching of elementary 

 botany, 1 



W aldsteinia fragarioides, 66 



Warmke, H. E. Studies on localization 

 of the male gene in Melandrium, lecture, 

 57 



Weigela floribunda, 87 



Whetzel, H. H., 32 



Witkus, Eleanor, R. Cytology of tapetal 

 cells in Spin-acia, lecture, 31 



Woodsia obtusa, 23 



Xanthium echinatum, 87 

 Xanthoxalis repens, 82 ; stricta, 82 

 Xylosteon canadensc, 87; jragrantissimum, 

 "87 



Zanthoxylum americanum, 66 

 Zinnia haageana, 50 

 Z/^ta aurea, 67 



