632 



Index 



Prunus Copalin, 144; demissa, 143; 

 melanocarpa, 143, 144; virginiana, 



144 

 Psathyrella, 218; angusticeps, 217 



Pseudocymopterus montanus multifidus, 



147 ; montanus purpureus, 147 ; 



multifidus, 147; purpureus, 147; 

 tenuifolius, 147 



Pseudotsuga, 405, 411, 514; Douglasii, 



431; mucronata, 411, 431, 514 



Psilotum nudum, 485 



Pteridium, 251, 252, 259; aquilinum, 



261 



Pteridophytes observed during three 

 excursions into southern Florida, 455 



Pteris, 272 ; aquilina pseudocaudata, 

 471; caudata, 472; longifolia, 457, 

 461, 472 



Puccinia, 513, 522; Agropyri, 29; atra, 

 519; Cirsii, 33; Cnici, 33; Dolichi, 

 28, 513; Echinopteridis, 516; Eleo- 

 charidis, 28, 29; Fimbristylidis, 

 28; inflata, 516; Pattersoniana, 



29; suaveolens, 33; Tndacis, 516; 

 Xanthii, 517 



Pucciniastrum, 405-407, 518 

 Puerto Rico, Hepaticae of, 1 

 Pycnolejennea, 1, 2, 4, 9, 19 ; macro- 



loba, 19, 23, 24; Schwaneckei, 21- 



2 5 J Spruceana, 19 

 Pyrola, 432 



Quercus, 309, 328, 329, 339, 424; cocci - 

 nea, 311; Fendleri, 309; laurifolia, 



529; Phellos, 529; Bamaleyi, 309 



Radula pallens, 129, 131 ; pycnolejeune- 



oides, 22 

 Randia, 521, 522 



Randolph, H. The influence of mois- 

 ture upon the formation of roots by 

 cuttings of ivy, 93 



Reboulia hemisphaerica, 129, 130, 132 



Hectolejeunea, 1, 4, 8, 9, 19, 20; 

 Berteroana, 12-15; emarginuli- 

 fiora, 14, 15, 25; fiagelliformis, 9, 

 10, 13-15, 25; phyllobola, 15, 131 



Reduction, A study of synapsis, and, 

 271 



Reed, H. S. & Smoot, I. The mechan- 

 ism of seed-dispersal in Polygonum 

 virginianum, 377 



Rhamnus ellipticus, 311; Kirchneri, 

 311 



Rhapidophyllum, 526; Hystrix, 526 

 Rhexia Alifanus, 238 ; glabella, 238 

 Rhizopus, 559; nigricans, 558-560 

 Rhododendron, 534; Cuthbertii, 240, 



534; punctatum, 534 

 Rhynchospora, see Rynchospora 

 Riccardia latifrons, 129, 130; multi- 



rida, 131 ; palmata, 129 



Richardsonia, 487, 4$9 ; pilosa, 487 

 Rocky mountain flora, Studies on the, 



137 

 Rumex occidentalis, 137; praecox, 137 



Kussuia nigrescentipes, 214; ochro- 

 phylla, 215; subvelutina, 215; 



uncialis, 215 

 Rydberg, P. A. Studies on the Rocky 



mountain flora, 137 

 Rydbergia Brandegei, 156; glabrata, 



156 

 Rynchosia texana, 27 

 Rynchospora leptorhyncha, 231 ; semi- 



plumosa, 526 



Saccodermae, New England desmids 

 of the sub-family, 343 



Sagenia, 200 



Sahx, 308 ; amygdalaefolia, 307 ; cor- 



oata Watsonii, 137; flava, 137; 



flexuosa, 171; myrtilloides, 308; pro- 



teaefolia, 171, 182; proteaefolia 



flexuosa, 171; proteaefolia longifolia, 



171; Ramaleyi, 307; Watsonii, 

 137 



Salomonia, 274, 289 ; biflora, 286, 305 



Sambucus, 308, 377 



Sanilum, 318 



Santalum, 182; americanum, 309; cog- 



natum, 182; ellipticum, 182; Novae- 



Caesareae, 182 

 Sapotacites, 181 ; Knowltoni, 



182; obovata, 181; retusa, 181 



Sarcoscypha dawsonensis, 220 



Sarracenia, 236, 237 ; flava, 237 ; 

 X minor, 236, 237 ; formosa, 



minor, 236, 237 ; minor x psitta- 

 cina, 236; psittacina, 236, 237 



Schizaea, 191, 462 ; Germani, 

 pusilla, 191 

 ^Schkuhria, 154; integrifolia, 155 

 I Scirpus atrovirens, 526 ; carinatus, 525 ; 

 georgianus, 526 



Secretion in the nectar-glands of Vicia 

 Faba, Cytological changes accom- 

 panying, 247 ^ 



Seed-dispersal in Polygonum virginia- 

 num, The mechanism of, 377 



Selaginella, 189, 190, 204; acanthonota, 



202 ; arenicola, 485 ; Bolanderi, 203 ; 

 Bourgeaui, 203 ; caribensis, 204, 485 ; 

 densa, 204 ; Engelmanni, 204 ; Fend- 

 leri, 203 ; Hanseni, 202 ; Haydeni, 

 203 ; montanensis, 203 ; Parishii, 

 202 ; rhodospora, 485 ; rupestris, 202 ; 

 rupestris Fendleri, 203 ; Schmidtii, 

 203 ; Schmidtii Krauseorum, 203 ; 

 Sherwoodi, 202 ; Underwoodii, 203 ; 



Wallacei, 203 ; Wrightii, 203 

 Selago, 102 



Selby, A. D. Studies in etiolation, 67 



Senecio aureus, 159; canus, 158; cro- 



181, 



flava 

 237; 



461; 



