GSNKRUM HER BACKUS. xi 
Partheniuiu 
Pascalia 
Passiflora 
Pastinaca 
Pedicularis 
Peganum 
Peltaria 
Penthorum 
Penstemon 
Perdicium 
Fetalostcnnim 
Petrocallis 
Peucedanum 
Phaca 
Phellaudrium 
Phlomis 
Phlox 
Phryma 
Physalis 
Phyteuma 
Phytolaca 
Picris 
Pilularia 
Pimpinclla 
Pinguicula 
Pisura 
Plantago 
Plumbago 
Podalyria 
Podophyllum 
Pogonia 
Polemouium 
Polygala 
Polygonum 
124 
Polymnea 
120 
Polypodium 
88 
Potentilla 
33 
Poterium 
79 
Potlios 
50 
Prenanthui 
85 
Primula 
57 
Prunella 
80 
Pteris 
110 
Pulmonaria 
90 
Pycnantheinum 
84 
Pyrethrum 
29 
Pyrola 
94 
Pyxidanthera 
32 
77 
Ranunculus 
18 
Raphanus 
79 
Reamuria 
23 
Reseda 
21 
Rheum 
58 
Rhexia 
10t 
Rliodiola 
133 
| Rubia 
34 
Rubus 
3 
Rudbeckia 
92 
Rumex 
12 
18 
Sabbatia 
49 
Sagina 
64 
Salvia 
126 
Salsola 
19 
Sambucus 
91 
1 Samolus 
47 
I Sanguiuai 
124 
m 
62 
127 
13 
100 
17 
79 
132 
15 
73 
117 
44 
1$ 
70 
88 
67 
59 
48 
46 
129 
It 
61 
121 
44 
2* 
14 
4 
m 
$4 
n 
u. 
