Xvi 
Orobanche. ...:....5% 40, 86. 
Grontivm i650. 57 
OrynO nds 22.0.0 20 sae 67 
OQemorhiza.s ies Acs eet 
Oamunda:.: 4.6covss ee 74 | 
OT gy Rareaney OPP rey rer 49 
“CBee tte TE Ti 10 
RSC OCCHE: Ay 2c. 5. 20288 32 
Pp 
Panicum c...-6 62282 65, 89 
- Papaver ...:... «0.5. 3, 75 
PAPAVERACEZ...... 3, 75 
Pardanthus........cccesee 53 
Parietaria 23: 5-..53% 48, 88 
ParNassia «i ..:~.. 5.628 ks 18 
*Parthenium........-.... 82 
Paspalum............65, 883 
PANRCR: 85520 2b ooe 22 
PPavonta.s. eine: 77 
PEDALINE#......... 41, 86 
Pedieularis::.. 0.0.5.5. 40 
EE SC ea ieee eon 73 
Pe RATS. 232.525 be vce cans 57 
PeweuoruMm .:..2.5. 25... 18 
CM BICMNON tc02523 355-05 39 
FP CTINIA. coon. oceans pre 
PG CASIRCN io sens cies os eee 30 
i eof bt) © Teepe 38, 85 
*Peucedanum..... .....81 
Phealanms: 20.5.4... 67, 89 
lig ie ce, ee eee 14 
Phegopteris. ..:....:..-.. 73 
SPM ETAL «2 00-5! scenes 84 
Pore 5 tee, .68, 89 
Lip. hel 0 ep ee ena eae 36 
Phoradendron.......... 47 
jg ig ea Col ee epee 69 
|g Ok ER SER ES 41 
Phyllanthus. ....... 48, 88 
Py Aliso, ode eer 38, 85 
Physostepia ./.-.....0.0: 43 
PUN POlACCH soiree. ne 46 
PHYTOLACCAOE....... 46 
Se beret APE Prana eee 71 
PICT 050 Sige 83 
i a rs E. 48 
PAAHTICNIR, 105. oncewusee. 21 
Pent ads sce et Cees 71 

INDEX. 
PIPERAOB A .icitecessceess 47 
*Pistite ; ica ee ae): 80 
PLANTAGINEZ....... 44, 86 
Plantago..3..<...... 44, 86 
PUATANAGER .47.20..5: 49 
Platanus.:...esgeb on 49 
Plachea 3... ./..2 5620 27 
PLUMBAGINE......34, 84 
P08 An hee 70 
Podophyllum............ 3 
PODOSTEMACEZ .........47 
Podostemon ............. 47 
POLONIA... 5.0. ee 52 
Polanisia ....5. 22) 76 
POLEMONIACE ....36, 84 
Polemonium ............ 36 
*Poly carport :s;...00 77 
*Polycnem@n *: 5.:5.0.2:. 7 
Poly#ats::./2252 oii 7 
POUR RR Ee Ee 7 
POLYGONACEZ .....46, 87 
Polygonatum ........... 54 
Polypontim:.3.c2 2: 46, 87 
Polymnpia:c. 343) 28 
Poly podium, 2:3. 2320 72 
Poly poron! 2:05: 68 
Polypremum............. 36 
Pontederia? 22.23.22... 55 
PONTEDERIACEZ......... 5d 
Populup'2..c5254e 51 
Portulaca 210.3205. 9, 77 
PORTULAOEZ........ 9, 77 
Potamogeton. .......... 58 
Potenthla...... = 16, 80 
Potertan.225.0 ee 16 
Prenanthes!}.(2. 2.52... + 31 
PRIMULACEZ........ 34, 84 
Proserpinace.:.53.202.5. 18 
Pronties- 7 ee 15 
Pailocatya xn. 2. 60 
+Psoraiea 22 ri) 
Ptelea'.ic5 ee 11 
Pieris 2 ase eee 73 
EDCTOSPOTS *hs20 aeexeaes 34 
Pycnanthemum......... 42 
Pyvala tess: cdeceegeons 33 
Py tte leet Meas 17 
Pyxidanthera.....:...... 34 
Q 
Quercus .....//aaeeeeeee 49 
R 
RANUNOULACES.... 1, 75 
Ranunculus ........ 1, 75 
Raphanus ........... 5, 76 
*Rapistrum...............76 
Reseda «.2.: 000 6, 76 
RESEDACEZ.......... 6, 76 
RHAMNEA. ;...-cu ee 11 
Rhamnus.)2.:22eeee 11 
Rhexia ...::).0 eee 19 
Rhinanthusg -v26ees 40 
Rhododendron......:... 33 
Rhodore ..-..t..ee 33 
RUS J. >..: dee 12 
*Rhynchosia......ae 80 
Rhyncospors .....-...s8. 61 
RAYNCOSPOT A. ...05 2. eee 60 
Ribes:. ....i.:.00.eeeee 18 
*Ricinus....... 22s 88 
*Richardsonia ..........81 
Robinia .... 5... eee 13 
Rosa ..... st2.c eee 16 
ROSAOEZ ...;...5coee 15, 80 
Roubieva..;...::acseee 45 
RUBIAOEA.....: 405008 23, 81 
Rubus... .:..0.23eeee 15, 80 
Rudbeckia...../..ccseee 28 
Ruellia ......<ca2ceeeeee 41 
Rumex....2:.).sen 46, 87 
Ruppia......2: 54:5 59 
Ruta... 00: cocced ss eee 11 
RUTACEA.,..\....<nsesneeee 11 
S 
Sabbatia .....:'..cscseseeee 36 
Naging .........eee 8, 77 
Sagittaria. .......ssscsaaee 58 
SALIOUNEAL.......ccssaens .00 
Nalicornia...::....-eeeee 45 
Salix ....... .c.2:/0sceeee 50 
Salsola cain:. secs eee 46 
Salvia ....i:5c. cee 43, 86 
Sambucus .........0. 23, 81 
Samolus. «..idcccecss epee 34 
Sanguinaria. ...........+. 3 
Sanicula.:. jj. 46.. 4500 21 
SANTALAOEZL.......ccc00. 47 
