INDEX 
Polvstichum pinata 
Polypodium marginellu 
podioides, ne NE OI I 57; vul- 
gare, 7I 
Polypogon, 319 
Polytaenium, 159, 169-190; anetioides, 
169; br singe anum, a ae Beg 
194, I 189; discoideum, 169, 190; 
Dussianum, 169; ensifo ormie, I 
Jenmani, 169, 171; la oe ae 
170, 172, 176, 
lanceolatum Fee 
he 
169, 171; 
169, 
gts I, 190; 
189; anes: 169, 
a paneer se Nae, 170-172, 178, | 
Hicuneas cordata, 229, 382 
a: 
» 
os aathaldcn achn Ones 
ar 
rest 
89; biflor 0; bipinnatifida, 86, 87, 
238, 239 breil 80, 81; Breweri, 83; 
Bruceae, 82, 83; canadensis, 357; 448, 
449; scad ts 85; ciliata, 
coloradensis, 83; crinita, 84, 85; 
decurrens, 
83, 238; hssa 
fragiformis, 705% 
79; Friesiana, 79; eos 86, 87, 8 
seaphoieigs 364, 366, 367; glan art 
fissa, 366; 
piana pulcherrima, 
83, 84; Keilhavii, ar: teem 366, od 
mmoni, 84, 85; 
rislebell. 86, fas ‘nail clatior, 87, 
poly- | 
- | 
567 
; pulcherrima, 83; pumila, 449; re- 
rai “be 367; ger 357; rhomboi- 
dea, 367; Richa » 855 xpeulata, ae 
rubricaulis, 81, one rubripes, 81- 83, 8 
rupestris, 366; oapeee americana, 366; 
vine a mee evades ea saxi- 
ig 3; sax 80,. 81; 
sericea ep fed 89; noe wt 448; 
Sommerfeltii, ea strigosa, 86, 80; 
subarctica, 88, 353; trichocarpa, 80, 
356; tridentata, 80; Vahliana, 87; 
versicolor, 83, 84; virgulata, 86; viri- 
dior, 82, 83, 238, 239; Wahliana, 87; 
wyomingensis, 84, 85; Winhgelilana, 
pees “age 
| PRETZ, as ora of Lehigh County, 
| Pennsylva a 
| Primula angustifolia 238; Parryi, 238 
_ Prionodon den 35 
| Pr sea ieee: aan 
; | Protea, 422 
| Prot oides ; lancifolius, os 
Se pip iocisdus, 420, 421 S, 403; 
; lobatu 
polymorphus, boa subintestifoltus. 404, 
405 
| Protophyllum multinerve, Stern- 
ergii, 411 
Prunus americana, 460; angustifolia, 255; 
Avium, 459; Pg sus, 459; maritima, 
459; serotina, 
Pseu ae fagelit ra 
Pseudoc pteru eistindce. 238, 230: 
° 
All; 
purpu a 23 
Pseudotsuga taxifolia, 335 
Psoralea pooeom 335, 338 
—2 a =“ stifolia, 
i nophylla, 23 
297; tufoliata, 295-207, 385 
eilchate mollis, 297; v 205 
telea, Carne can tals rg 385 
Pteridium 2g ery ee 6 
Pteridophyt 
Pteris, 403; Mises ii, Midd bag opal 
172; gram wg 159; lin 164 
Pterospermites II 
Ptiloca cadet in tis: major: 175 
nuta 
Puilophora major, 
Pti II; pa Lanitoed. I2;  ramosa, 
Bical Allii, 375; Asparagi, hte Blas- 
dalei, va, 275°. Calochorti, 376; 
o adeie. 360; 
3753 
376; 
egregia, 370; exornata, 370 
granulispora, 375; yeni, te 
oaxacana, 370; pagan 
pistorica, 372; Porri, roesdes hice. 
3783 Sisyrinchii, 376; sphenica, 371; 
oie teriana, 375 
Puerto Rico, ttiees of, 251 
eee. 540 
Pyrus communis, 452 
