— 296 — 
Phaseolus submontanus Rose 
Phaseolus vulgaris L 
Philadelphus mexicanus Selil 
Philibertia elegans Hemsl 
Phoradendron bracliystachyum Oliv 
Phoradendron velutinum Oliv 
Pliormium tenax Fost 
Physalis aequa ta Jacq 
Physali3 cozeomatl Moq et Sess 
Phytolacca icosandra L 
P. octandra L 
Picris echioides L 
Pilostyles Thurberi A. Or 
Pinaceas 
Pinaropappus loseus L 
Pinguicula caudata Schl 
Pinus ayacahuite Ehrenb 
Pinus Hartwegii Lindl 
Pinus leiophylla Schied 
Piperdceffs 
Piqueria trinervia Cav 
Piroldceaa 
Pirola secunda L 
Pirus communis L 
Pirus malus L 
Pisonia hirtella H. B. Kth 
Pistia stratiotes L 
Pistun sativum L 
Pitlieeolobium Palmeri Hemsl 
Plantngmdceas 
Plantago lanceolata L 
Plantago major L 
Plantago mexicana Lnk 
Plantago virginica L 
Piumbaginaceas 
Plumbago capensis Thuub 
Plumbago pulchella Boiss 
Plumbago scandens L 
Poa annua L 
Polanisia uniglandulosa Oav 
Potemoniaceas 
Polemonium mexicanum Cav 
Polian tlies spec 
Poligalaceas 
Poligonaceas 
Polygala compacta Rose 
Polygala myrtifolia L... 
Polygala scoparia H. B. Kth 
Pags. 
77 
77 
61 
129 
32 
32 
257 
147 
146 
43 
43 
216 
33 
23 
215 
160 
24 
24 
24 
27 
177 
119 
119 
67 
67 
42 
246 
74 
79 
163 
163 
163 
163 
163 
123 
124 
124 
124 
240 
54 
133 
134 
257 
86 
34 
87 
87 
87 
