XIX 



Pentstemon, Wl 44 Continued. 



glaber (blue p.), W144. 



Rlaucus (blueleaf p.), W144- 



gracilis (slender p.). W144- 



grandiflcrus (shell-leaf p.), 



Lemmon (P. lemmonii), W144- 



lemmonii (Lemmon pentstcmon), W144- 



Httleflower (P. procerus), W144. 



littleleaf (P. microphyllus), W144. 



Mancos (P. strictiformis), W144. 



Menzies (P. menziesii), WIU- 



menziesii (Menzies pentstemon), W144- 



microphyllus (littleleaf p.). W144- 



ovatus (eggleaf p.). W144- 



Palmer (P. palmeri), WIU- 



palmeri (Palmer pentstemon), W144- 



pinon (P. similis), W144- 



proccrus (Httleflower pentstemon), W144- 



rockvine (P. ellipticus), W144~ 



Rocky Mountain (P. strictus), WIU- 



Rydberg (P. rydbergii), W144. 



rydbergii (Rydberg pentstemon), W144. 



Scouler (P. scouleri), WIU- 



scouleri (Scouler pentstemon), 



shell-leaf (P. grandiflorus), WIU- 



similis (pinon pentstemon), W144- 



slender (P. gracilis), W144- 



strictiformis (Mancos pentstemon), W144- 



strictus (Rocky Mountain p.), W144- 



stubflower (P. breviflorus), WIU- 



Wasatch (P. cyananthus), WIU. 

 peony, Browns (Paeonia brownii;, AV140. 

 peony, wild. See Paeonia brownii. 

 peppermint (Mentha piperita), WIZ5. 

 Peucedanum. See Cogswellia. 

 Phaca. See Astragalus. 

 Philadelphus (mockonmge) , B109. 



gordonianus (Gordon m.)> B100. 



Icwisii (Lewis m.), B109. 



lewisii californicus, B109. 

 Phleum (timothy) 



alpinum (alpine t.), G93. 



pratense (timothy), Q94. 

 Phlox, W147. 



Drummond (P. drummondii), W147. 



drummondii (Drummond phlox), Wlff, 



Roemer (P. roemeriana), Wlltf. 



roemeriana (Roemer phlox) , WlJfl, 



Siberian (P. sibiricn), W147. 



sibirica (Siberian phlox), W147. 

 Phyllodoce (mountainheath) 



brewer! (Brewer m.), B110. 



empetriformis (redm.), B110. 



glanduliflora (cream m.), B110. 

 Physocarpus. See Opulaster. 



pubescens. See O. malvaceus. 

 picquotiane. See breadroot, Indian. 

 Picradenia. See Actinea. 



floribunda. See A. richardsoni. 



macrantha. See A. richardsoni. 



pumila. See A. richardsoni. 

 pieplant, wild-. See cow-parsnip. 

 pigeonberry. See buckthorn, California; service- 

 berry, common. 

 pignut. See jojoba. 

 pinelover. See alfileria. 

 pinegrass (Calamagrostis rubcscena), Q42. 



purple (C. purpurascens), G40. 

 pinegrass. See bluegrass; fescue, Arizona; sedge, 

 elk. 



beardless. See dropseed, pine. 

 marsh. See blue joint. 

 meadow. See bluejoint. 

 pinelily. See beargrass. 

 pinemat (Arctostaphylos nevadensis), BIB. 

 pingrass. See alfileria. 

 pingiie ( Actinea richardsoni ),W7. 

 plant, silver. See eriogonum, cushion; eriogonum, 



sulphur. 



Plantago (plantain, perennial spp.; Indianwheat, 

 annual spp.), W150. 

 fastigiata (desert Indianwheat), W150. 

 lanceolata (buckhorn plantain), W160. 

 major (rippleseed p.), W160. 

 patagonica gnaphalioides. See P. purshii. 

 psyllium (flaxseed plantain), W150. 

 purshii (woolly Indianwheat), W160. 

 plantain (Plantago, perennial spp.), W1BO. 

 buckhorn (P. lanceolata), W150. 

 common. See rippleseed plantain. 



plantain (Plantago, perennial spp.), W150 Contd 



flaxseed (P. psyllium), W160. 



lanceleaf. See buckhorn plantain. 



rippleseed (P. major), W150. 



tufted. See Indianwheat, desert. 

 Pleuraphis. See Hilaria. 



plum (Prunus, spp. with relatively large, short- 

 stalked, flattened-pitted fruits) 

 Poa (bluegrass), G95. 



arachnifera (Texas b.), G95. 



brevipaniculata. See P. fendleriana. 



buckleyana. See P. scabrella. 



"buckleyana" (of some authors, in part). See 

 P. secunda. 



canbyi (Canby bluegrass), 095. 



compressa (Canada b.), G9S. 



fendleriana (muttongrass), O100. 



incurva. See P. secunda. 



longipedunculata. See P. fendleriana. 



nemoralis (wood bluegrass), 095. 



nervosa (Wheeler b.), O9B. 



nevadensis (Nevada b.), Q102. 



prutensis (Kentucky b.), O103. 



sandbergii. See P. secunda. 



scabrella (pine bluegrass), O95, G106. 



scabriuscula. See P. fendleriana. 



secunda (Sandberg bluegrass), Q106. 



wheeled. See P. nervosa. 

 pointvetch (Oxytropis, harmless spp.), W138. 



Bessey (O. besseyi), W1S8. 

 poison-camas. See deathcamas. 

 poisonhemlock (Conium maculatum), W52. 

 poisonhemlock. See waterhemlock; waterhem- 



lock, western, 

 poison-ivy (Toxicodendron), BIBS. 



common (T. radicans), BIBS. 



western (T. rydbergii), B153. 



poison-oak (shrubby Toxicodendron spp. with 

 lobed and somewhat oaklike leaflets), BIBS. 



Pacific (T. diversilobum), BIBS. 

 poisonparsnip. See waterhemlock; waterhemlock, 



western. 



poison-sego. See deathcamas. 

 poison-soaproot. See deathcamas. 

 poison-sumac (Toxicodendron vernix), BIBS. 

 poisonvetch (Astragalus, poisonous spp. not causing 

 locoism) . 



timber (Astragalus convallarius), W36. 



two-groove (A. bisulcatus), WS6. 

 polecat bush. See skunkbush. 

 Polemonium 



albiflorum (white p.), W152. 



caeruleum (Greek-valerian), W15&. 



delicatum. See P. puicherrimum. 



humile (of U. S. authors). See P. puicher- 

 rimum. 



pulchellum (of U. S. authors) . See P. puicher- 

 rimum. 



puicherrimum (blue skunkleuf), W153. 



scopulinum. See P. puicherrimum. 



white (P. albiflorum), W152. 

 Polygonum (knotweed), W164- 



bistortoides. See Bistorta bistortoides. 



douglasii (Douglas knotweed), W154. 

 pomme blanche. See breadroot, Indian. 

 pomme de prairie. See breadroot, Indian. 

 pnnil. See Apache-plume, 

 poplar (Populus), Bill. 



trembling. See aspen. 

 popotillo. See Ephedra. 

 popple. See poplar, 

 poppy (Papaver) 



opium (P. soinniferum), W76. 



California-. See California-poppy. 

 Populns (aspen; poplar; cotton wood), Bill. 



angustifolia (narrowleaf cotton wood). Bill. 



aurea. See P. tremuloides aurea. 



f ortissima. See P. angustifolia. 



tremuloides (American aspen), Bill. 



"tremuloides" (in part). See P. tremuloidea 

 aurea. 



tremuloides aurea (western aspen), Bill. 



tremuloides cercidiphylla (redbud a..), Bill. 



tremuloides reniformis (kidneyleaf a.), Bill. 



tremuloides vancouveriana (Vancouver a.), 

 Bill. 



trichocarpa (black cottonwood), Bill. 

 porcupincgrass (Stipa spartea), Gil 4. 



