INDEX TO VOLUME X 
575 
Symplocos tinctoria, 506 
Syncarpia lamina, 47 
Taraxacum, parthenogenetic species of, 222 
Tarrietia Argyrodendron, 44; sylvatica, 507 
Taxodium, 174 
Taxus baccata, phloem of, 499 
Telopea speciosissima, 51 
Tetracentron, secondary xylem of, 505 
Tetraspora, amoeboid phase of, 392 
Tetratheca, 52, 181 
Thelymitra, 181, 521 
Thespesia populnea, 507 
Thielavia root rot of tobacco, severity in 
saturated soil, 133 
Thompson, Thomas G. (See George B. 
Rigg, 383) 
Thuya, dorsicentrality of shoots of, 278 
Thysonatus, 181; tuber osus, 53 
Tilia tomentosa , phloem of, 499 
Timber-destroying fungi, structural, the 
effect of heat upon the mycelium of cer¬ 
tain, 399 
Tmesipteris, 530; tannensis , 55 
Todea barbara, 52, 177, 519; Fraseri , 55 
Tomato, the relation of temperature to the 
Fusarium wilt of the, 71; the relation of 
soil moisture to the Fusarium wilt of the, 
133 
Tomato seedlings, hydrogen-ion concentra¬ 
tion as related to the Fusarium wilt of, 
537 
Tottingham, W. E., and E. J. Rankin. 
The availability of iron in nutrient solu¬ 
tions for wheat, 203 
Tradescantia virginica L., the structure of 
the chromosomes in, 343 
Trametes carnea, serialis, 399 
Treubia insignis, 531; archegonium of, 159 
Trichocolea, 531 
Trichoderma koningi , soil-moisture condi¬ 
tions for, 134 
Trichomanes reniforme, 521 
Trichonymphidae, 390 
Trifolium alexandrium , 414 
Tristania, 185; conferta, 47; nereifolia , 54 
Triticum compactum , 243; vulgare, 211 
Tritonia, 178 
Trochocarpa lamina, 47 
Trochodendron, secondary xylem of, 505 
Tsuga canadensis, 506 
Type species of the first 100 genera of Lin¬ 
naeus’ Species Plantarum, 510 
Umbraculum flabellatum, 175 
Urandra luzoniensis, 506 
Valleau, W. D. The inheritance of 
flower types and fertility in the straw¬ 
berry, 259 
Valsa oxystoma on alder, 134 
Vatica Mangachapoi, 506 
Vernonia, the Bolivian species of, 297 
Vernonia in North America, evolution and 
geographical distribution of the genus, 187 
Vernonia aborigina, 198; acaulis, 199; acil- 
epis, 189; acuminata, 192; albicaulis, 190; 
altissima, 199; angustifolia, 198; anthel- 
mintica, 187; apiculata, 298; arborescens, 
190; arbuscula, 191; argyropappa, 189, 
302; aristo squamosa, 302; baccharoides, 
306; bahamensis, 191; Bakerana, 307; 
Baldwini, 197; Blodgettii, 198; boliviano, 
299; Bolleana, 198; borinquensis, 190; 
brachiata, 195; brasiliana, 306; brevira- 
mosa, 303; Buchtieni, 302; canaminina, 
309; canescens, 195; cinerea, 187; com- 
plicata, 141; concinna, 199; Conwayi, 299; 
Conzattii, 196; corallophila, 192; cordiae- 
folia, 308; coriacea, 303; corymbosa, 197; 
costata, 308; crassifolia, 306; crinata, 201; 
ctenophora, 189; cuneifolia, 301; deflexa, 
302; deyisipaniculata, 307; echitifolia, 306; 
fasciculata, 197; ferruginea, 306; flaccidi- 
folia, 199; georgiana, 199; gigantea, 199; 
glauca, 199; gnaphalifolia, 192; gracilis var. 
tomentosa, 189; grandiflora, 303; Harperi, 
199; havanensis, 195; herbacea, 306; hir- 
sutivena, 189; icosantha, 190; insularis, 
198; interior, 197; jubifera, 299; jucunda, 
188; Karvinskiana, 195; Kuntzei, 303; 
laxa, 199; Lehmanni, 306; Lettermannif^ 
197; liatroides, 198; ligulaefolia, 300; 
Lindheimeriana, 197; longifolia, 190; 
Mandonii, 301; mapirensis, 307; margin- 
ata, 197; mattogrossensis, 306; megaphylla, 
302; membranacea, 306; missmica, 198; 
mollis, 196; morelana, 196; myriocephala, 
306; noveboracensis, 199; obcordata, 191; 
obtusata, 30, 193; ovalifolia, 199; palles- 
cens, 195; patens, 196; permollis, 190; 
pluvialis, i92;prenanthoides, 3o8;pseudo- 
mollis, 307; pulchella, 198; pumila, 303; 
pur pur ata, 193; pycnantlna, 299; racemosa, 
191; recurva, 198; remotiflora, 189, 302; 
robusta, 193, 301; rubricaulis, 300; Sagrae- 
ana, 193; saltensis, 300; santacruzensis, 
