INDEX. 
Phaseolus, 55 
multiflorus, 56, 57, 58, 67 
Philotria, 54, 65, 66, 67, 68 
canadensis (Michx.) Britton, 360, 
374, 572 
Phleum pratense, 622 
Phlox divaricata L., 363, 402 
pilosa L., 402 
Phoradendron flavescens, 169 
Phormidium, 614 
valderianum (Delp.) Gomont, 28 
Phragmidium Link., 537, 552, 553 
potentille (P.) Karst., 553 
rubi-idei (P.) Karst., 553 
speciosum Fr., 553 
subcorticum (Schrank.) 
553 
Phragmites phragmites (L.) Karst, 
547, 574 
Phragmopyxis, 552 
Phrynia leptostachya L., 363, 407, 559, 
592 
Phrymacez, 407, 592 
‘Phyllactinia, 424 
suffulta (Reb.) Sace., 429 
Phyllobium dimorphum, 198 
Phyllophora brodizi, 163 
interrupta, 163 
Physalis heterophylla Nees, 405 
macrophysa Rydb., 405 
philadelphica Lam., 358, 405 
virginiana Mill., 405 
Physcia, 222, 224, 672, 676 
adglutinata (Floerk.) Nyl., 228, 
249, 303, 304, 312, 688 
aquila (Ach.) Nyl., 230, 247 
var. detonsa Tuck., 14 
astroidea (Fr. ) Nyl., 666, 687 
ceesia (Hoffm.) Nyl., 14, 224, 228, 
249, 284, 287, 288, 312, 661, 664, 
688 
ciliaris (L.) DC., 247 
granulifera (Ach.) Tuck., 238, 303, 
311, 687 
hispida (Schreb., Fr.) Tuck., 227, 
248, 666, 671, 675, 677, 687 
hypoleuca (Muhl.) Tuck., 670, 
687 
obscura (Ehrh.) Nyl., 14, 222, 223, 
248, 249, 290, 292, 303, 312, 666, 
671, 680, 688 
Wint., 
767 
Physcia 
‘pulverulenta (Schreb.) Nyl., 14, 
247, 249, 290, 292, 303, 311, 
666, 671, 687 
var. leucoleiptes Tuck., 248 
speciosa (Wulf., Ach.) Nyl., 13, 
222, 247, 290, 292, 311, 666, 670, 
687 
stellaris (L.) Tuck., 14, 222, 224, 
248, 292, 303, 311, 659, 666, 
687 
var. apiola Nyl., 248, 287, 288, 
311, 664, 666, 687 
tribacia (Ach.) Tuck., 14, 248, 284, 
287, 303, 312, 681, 687 
Physostegia virginiana (L.) Benth., 
358, 404, 591 
Picea mariana (Mill.) B.S.P., 225, 
559 
Pimpinella integerrima (L.) A. Gray, 
361, 399 
Pinaceze, 372 
Pinus Banksiana, 32 
coronaria, 31 
ponderosa, 538 
scopulorum, 169 
resinosus Ait., 32, 225 
strobus L., 225, 372 
Pistia, 649 
Placodium, 221, 665, 672, 674 
aurantiacum (Light) Naeg. and 
Hepp., 15, 223, 255, 291, 300, 
303, 315, 664, 671, 690 
cerinum (Hedw.) Naeg. and 
Hepp. 255,303, 304, 316, 664, 
671, 691 : 
var. pyracea Nyl., 229, 255, 
305, 316, 673, 691 
var. sideritis Tuck., 15, 285, 
287, 288, 316, 664, 691 
cinnabarinum (Ach.) Auz., I§5, 
228, 255, 285, 287, 297, 315, 664, 
690 
citrinum (Hoffm.) Leight., 255, 
298, 299, 316 
elegans (Link.) DC., 15, 255, 284, 
287, 300, 315, 661, 664, 690 
ferrugineum (Huds.) Hepp., 
281, 316, 673, €91 
var. pollinii Tuck., 281, 
316 
