Index to Volume VI 
321 
Saxifraga arguta, 257; austromon- 
tana, 252, 257; cernua, 209, 210; 
debilis, 243, 257; granulata, 210; 
punctata, 257 
Schizanthus, 56, 59, 60; grahami, 67 
Schizophyllum alneum, 266 
Scleroderma verrucosum, 224 ; vul- 
gare, 150 
Sclerotium bataticola, 95 
Seaver, F. J., A preliminary study of 
the genus Lamprospora, 5; North 
American species of Aleuria and 
Aleurina, 273 ; Observations on 
Sphaerosoma and allied genera, 103 
Sedum debile, 257; stenopetalum, 
2SU 257 
Sempervivum tectorium, 76 
Senecio crassulus, 257; dispar, 257; 
lugens, 257; triangularis, 257; vul- 
garis, in 
Septoria, 33 ; Atriplicis, 33 
Sequoia, 7; sempervirens, 18 
Sida hederacea, 257 
Sidalcea nervata, 257 
Sieversia turbinata, 251, 257 
Silene, 196; Menziesii, 257 
Simblum sphaerocephalum, 267 
Sistotrema fuscescens, 233, 234 ; oliva- 
ceum, 233, 234 
Sitanion californicum, 257; glaber, 
257 ; rigidum, 244, 257 
Small collection of lichens from Ja- 
maica, West Indies, 259 
Smelowskia americana, 257; calycina, 
257 
Smuts and rusts of Utah, Host index 
of. 253 
Smuts and rusts of Utah, The — II, 
240 
Solanum, 60; Lycopersicum, 56; Me- 
longena, 56, 59, 60; tuberosum, 56, 
60 
Solidago, 1 19; canadensis, 257; mol- 
lis, 257; pulcherrima, 257; pumila, 
257; rugosa, 1 12; trinervata, 257 
Sonchus asper, 116 
9 ophia, 199, 241, 245, 257; incisa, 
257 
Sorbus, 72 
Sorosporium Saponariae, 240 
Sparassis crispa, 163; Herbstii, 162 
Species, Notes on miscellaneous. 
Studies in North American Perono- 
sporales — VI, 192 
Species of Aleuria and Aleurina, 
North American, 273 
Species of Peridermium on pine, 
North American,. 109 
Species of water molds, Two new, 285 
Sphaeralcea arizonica, 245, 257; gros- 
sulariaefolia, 257; marginale, 245, 
257; Munroana, 257 
Sphaeronema fimbriata, 95 
Sphaerophorus compressus, 259 
Sphaerosoma, 103-105, 107, 108; 
echinulatum, 103, 105, 106, 108; 
fuscescens, 104, 105, 108 
Sphaerosoma and allied genera, Ob- 
servations on, 103 
Spicaria, 74 
Spinacia, 200 ; oleracea, 200, 202 
Spores of Volvaria speciosa Fr., The 
color of the. Observations on the 
use of Ridgway’s new color-book, 
29 
Sporobolus asperifolius, 257 ; fili- 
formis, 257 
Stellaria borealis, 257; Curtisii, 240, 
257 
Stemonitis, 147; splendens, 149 
Stephanomeria minor, 257 
Stereocaulon, 259; cornutum, 261; 
ramulosum, 261 
Sticta damaecornis 261 ; Weigelli, 261 
Stimblum flavidum, 264 
Stipa comata, 245, 257; minor, 257 
Streptothrix, 34 ; abietina, 34 ; atra, 
34, 36 ; cinerea, 34 ; fusca, 34 ; 
glauca, 34; pereffusa, 34, 36 
Stropharia, 139, 143, 144, 265; am- 
bigua, 143, 144, 268; bilamellata, 
144 
Stropharia ambigua, The development 
of, 139 
Studies in North American Perono- 
sporales — V. A review of the genus 
Phytophthora, 54; VI. Notes on 
miscellaneous species, 192 
Studies in the Hydnaceae, Type — 
VII. The genera Asterodon and 
Hydnochaete, 231 
Study of the genus Lamprospora, A 
preliminary, 5 
Sumstine, D. R., New or interesting 
fungi, 32 
Symphoricarpos rotundifolius, 257 ; 
vaccinioides, 257 
Synthyris laciniata, 248, 257; pinna- 
tifida, 248, 257 
Syringa, 59 ; persica, 72 
Taraxacum officinale, 257; taraxacum, 
257 
Taraxia subacaulis, 257 
Tellima parviflora, 257 
Tetraneuris leptoclada, 248, 257 
Thalictrum, 69 ; Fendleri, 257 ; sparsi- 
florum, 257 
Thelephora, 267 ; laciniata, 282 ; mag- 
nispora, 267 ; perplexa, 267 ; scis- 
silis, 267 
Thelotrema lepadinum, 260; subtile, 
260 
Theobroma, 75 ; Cacao, 75 
