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dium, 70 ; I'lie early Writers 011 Ferns 

 and their Collections, 37 ; personal, 19, 

 50, 51, 52, 70, 77, 96, 133, 170 



Unifolium canadensc, 188, 189, 192 



Uniola, 136-139, 141 ; laxa, 143, 145; 

 |>aniculata, 136, 137, 145 



Urera, 87 



Uromyces Astragali, 216 



Urospora, 53 



Usnea l)arhata, Si 



Vacciiiiuni canadense, 190-193; caespi- 

 tosiini, 191; pennsylvanicum, 191-193; 

 pennsylvanicum angustifoliuin, 191, 

 192; uliijinosum, 191, 192 



Vail, A. M., Onagra grandiflora : A 

 Species to be included in the North 

 American Mora, 9; personal, 51 



Vagnera stellata, 15 



Variation, Discontinuous, and the Origin 

 of Species, i 



Vegetation of Inagua, The, 35 



Veratrum viride, 189-192 



Verbena stricta, 159 



Vernonia angustifolia, 160 



Verrucaria, 82 



\'ienna, liotanical Congress in, 77, 130, 



\'iburnum alnifolium, lS8-igo ; cassi- 

 noides, 18S 



Vincetoxicum suberosum, 143 



Viola Angellae, 130, 131 ; arenaria, 130 ; 

 biflora, X32 ; blanda, 130 ; Brainerdi, 

 130; iJriltoniana, 130; Carolina, 130 ; 

 cordata, 130 ; cucullata, 130, 132 ; 

 denticulosa, 1 14; fimbriatula, 130 ; 

 labradorica, 130; lanceolata, 130 ; Le- 

 Conteana, 130; Mulfordae, 130 ; rnul- 

 ticaulis, 130 ; nephrophylla, 130; Nut- 

 tallii, 130; obliqua, 130, 131 ; palmata, 

 130, 131 ; papilionacea, 130 ; pedata, 

 56, 130; I'orteriana, 130; praemorsa, 

 46 ; pubescens, 130 ; Rafinestjuei, 130 ; 



rctusa, 130; rostrata, 130 ; rotmidi- 



folia, 13c, 18S, 192; sagittata, 130 ; 



scabriuscula, 130 ; sepleniioLa. 131; 



se|)tentrionalis, 130 ; tripartita, 130; 



villosa, 130 

 Vitis rotundifolia, 140 

 V'ittaria, 39 

 Volvox, 53 

 Votey, J. W., personal, 54 



Ward, H. M., personal, 75 



Waters, C. K. , 19, 20 



West Indies, A Paspalum new to the, 6 ; 



A Trio of Grasses new to the, 109 

 Wiegand, K. M., personal, 97 

 Wight, W. F., personal, 20, 116 

 Wilson, P., 130 ; personal, 52 

 Williams, R. S., personal, 206 

 Willugbaeya scandens, 143 

 Woods, A. F. , personal, 77 

 Writers on Ferns and their Collections, 



The early, 57 

 Wurdemannia, 73 

 Wylie, R. B., personal, 205 



Xyris, Two misinterpreted Species of, 

 128 



Xyris, 128, 129; arenicola, 129; brevi- 

 folia, 128 ; bulbosa, 129 ; caroliniana, 

 128, 129; conocephala, 130; Klliottii, 

 128; flexuosa, 128, 129; platylepis, 

 129 ; torta, 128, 129 



Yatsu, N., Cytological Differences be- 

 tween the Palmella and filamentous 

 Forms of Stigeoclonium, lOO 



York, II. H., personal, 78, 205 



Young, D., 149 



Yucca australis, Flowering of, 104 



Yucca, 35, 104 ; aloifolia, 138 ; australis, 

 104, 105; fdamentosa, 143; gloriosa, 

 137 ; mohavensis, 104 



