498 
Picea canadensis, 124, 307; Engelmannii, 
mariana, 307; pungens, 321 
celsa, 270 
ta, Banksiana, 
Mitiaeen a, 308; Aa dcioea, 408, 355; 1 
osa scopulorum, 321 
elegans, 3143 multiflora, 314; | 
unalaschensis, 308 
Piptocoma rufescens latifolia, 251 
306; major, 
Purshii, 
_ me of “the one United States, 
—V, 18 
pe bani dubium, dd > 267 
Platypodium Maxonian 
: tan, 
— 143, 320; 
pedunci eo agin eyae, 
t . 
1, 1%; 
a, triflora, 302; Vaseyochloa, 3:9 
Polanisia poeestebie 
Polemonium confertum, 46; occidentale, 
309 
Polycodium floribundum, 183 
Polygala polygama, 430 
iforme, sed, Douglasii, 
3033 nnii, 44; pennsylvanicum 
nesopbilum, ying Pe atc Pg 302; 
watchense, 44; scandens, 117; 
Palacall, 310 
Polypodium hesperium, 309; vulgare, 
Polyatichum imple Bat Lonchitis, 
M, 315; scopulinum, 321 
Pongamia ates, ees saith is, 267 
Populus angustifolia, 321; balsamifera, 
299; tremuloides, 299; Wislizenii, 321, 
22 
Porliera hygrometra, 272 
Bipriarts. gun alpinus, 301; foliosus, 301; 
Tat a, 45; dichro 
43; Dr ndii, 319; e AS) 
caulis, 322; glomerata, 316 ap gunn Ee 
45; Nutt » 313; Ovina, 324; pro- 
pinqua, 322; strigosa, 45 
Preliminary note on a_ differ 
ential 
bist of ae cytoplasm of Shae 
375 
cick notes on the embryology of 
Reboulia hemisphaerica, 461 
295; | 
302; | 
INDEX 
Preparation _ treatment “ woods for 
TO 
scopic study, The, 127 
ee mistassinica, 307; <a 322 
| Proustia do mingensis, 2 
rs 
| Prunella vulgaris 
eee argophyila, 453 oe 45 
eudocymopterus param 46 
e aca tsuga mucro ra, ey 

7;  erinaceus, 
Sg gpl 267; Marsupium, 
Rohrii, 268; ‘santalinus, 26 
coining javanicum, 
m, 271 
pec eae nitens, 268; sp., 268 
eo diversifo Fie 271; javan- 
271; suberifolium oe: 
Pe peciecee ay ee edea, 
Puccinellia distans, 42 
Puccinia abrupta, 120; ee 
271; 
hos 
1090; inariae, I "2 
b senfaas age et na, 412; Cle 
tid ckerelliana, 
108, 114; Co 
113, 1 5 * > Colbbeloust si a 
122; deformata 412; 

farinacea, 118; Oe aa spi et fr 
cola, 109; ge tilis s, 118; Helianthi, 119; 
imposita, 112, 411; inclita, 115, 411; 
invelata, 119; bachii, 110; longi- 
ornis, 122; m s, 119; mammillata, 
117; missouriensis, 108; mitrata, 118; 
obtecta, 107; pallescens, III, 412, 344: 
415; pallida, 111; parca, 117; phakop- 
soroides, 412-415; Polygoni, 117; 
prospera, 118; Scribnerianum, 109; 
rigs nr Bs substriata, I16, 
vahidtnrcaay — nsis, 107 
Pucciniastrum sai es 25 
Pulsatilla fone trier 303; occiden- 
talis, 315 
Pyrola Borage 300; bracteata, 320; 
to} es entata, 316; 
» 309; perenen 
446 
amoclidion multifiorum, 320 
Quercus pagoda, 225; pagodaefolia, 431; 
Schumardii, 225 



Xeri ophytic c grasslands at 
epee pr in Colorado, 37 
Ramischia . 
Raminculus’ alismaefoliug, 342, 3105 
ongardii, 308; dio: tg iti 312; 
Douglasii, 308; oltzii, 310; 
intertextus, 322; micranthus, 3065 

