eet i sada sab 7: 213 
Polygonum 1: 92; 
cpesiouey 
polystachyum 13: 164 
oaeaead 9: 
+92 
Polypodium 2: 184, : 40, 178; 4: 853 7: 
; 10: 230, 260; 13: 15 
aureum, see Phlebodium aureum 
cuspidatum 2:7 
podocarpum 13: 14 
ph ieee) 14: 65 
vulgare 3: 167; 10: 76, 141; 12: 48, 
Polypody, int 170; 12: 48 
259 
golden 
Pol: gecilii IO: 51 
Polypore. 15: 
: fro. hae ee 
many-colored 10: ae 
coe selg Ragen 10: 15: 
Polypores and poe a ‘o the “Take 
m7: 2am 260 
Pompon wn dahlias ons 220-222 
nae 52, 172, 173 
PB ee 
153; 12: 138; 13: 83 
Decne eee 1906, 8: 65; 
1907, 9: 35 
Ponp, R. H. 
Investigations on Enz: zymes 6: 118 
ae is a substance poison 8: I10- 
Pond- iesale 12:93; 15: ros 76, 11 
Pond-lilies 13: 162; 14: 64; 1§: 7 
Pond-weed 2: 35; 11: 100; = 72, 73577 
8: 206 
334 
Po sal erie 9: 136 
ved 49, 723 13: I, 2, 162; 14: 160, 
W. 12: 208; 13: 103, 179; 14: 
3 
Poppy- “allow, purple 1: 124 
aise 
2250 
deltoides oe 
mexicana 5: OL 
tremuloides 2: 12, 13: 11: 249 
poe 2: 132° 
Porella 13: 
oria cee 13: 177 
Poroda: edalea poles a 13: 177 
Port Ant 4; 5) 
rT, De Gy 105 
biesaathas oe II: §2 
ie II: 234 
Porto Rico, eae explorations in 7: 
125. f. 4 
h 
Porto Ric 
island of eae 15: 
Porto Rico, Explorati ce ne 52, 88, 89, 
120, 13 
abs Rico, Physical and floral features 
Pate Rico, Report of L. M. Underwood 
on a trip to 2:1 
spit ee pee of Percy Wilson, on 
178 
oe Lea Report on a trip to 4: I71. 
. 8-27 
Porto Rico, Report on explorations in, 
ae islands adjacent 15: 95. pl. 132 
ortland Gap 4: 109, a] = 
Fees elie ee 
olerac 
Post. GB. 6: 
ost, H. C. vi 
ash aie 4:61; 7 is, 213; 15: 72 
54, 7, ILO, II, 
Indian 15: 
Trish 4: 145; 14: 1704 18: 54, 110 
15: 54. IIo. 
153 
tree- 14: 82 
white 15: 110 
aac 10; 252 
Pothos 14 
platoca utes 14: 183 
