360 
Pithecolobium, 286 
Plagiochasma, 242-244, 246, 250 
Plantago eriopoda, 322; maritima, 31; 
Purshii, 322; Tweedyi, 321 
Platanus, i. eeewak 70 
Platyearpos, 225 
cona 2 
e oa 
Pleopadium tae eae 93 
Plathyrais, < lau 
324568 AR ba 325; interior, 
Podopteras, beth, 86; cordifolius, 79, 
8 
0, ae) arginatus, 78, 85; 
beienroila. 79, 8 , 873 mex- 
lcanus, 7 8s, 
ee Brandegei, 326; confer- 
326; me 32 
Polygonacede, with remarks on sige 
nera, Neomillspaughia, a ne 
8 0f, °F 
Polygon peamnatnebsngt 
mannii, 321 4 
421% sawatchense, 
322; Engel- 
ramosissimum, 
Wat- 
‘321, 324; 
sonii, 321 
Polypodium irioides, 203-205, 271, 272 
274-27 
Polypodium irioides, 
of prothal cs and 
the sex organs of, 
boy Statas ioides, Veatie. repro- 
and 
- osporous rpsakys 
ithe g ptbtiy| sporophy te of, 
The development 
antheridia from 
; tornatus, 289; 
umbraeulum, fg zonalis, 286, 287; 
stictus, 295; is, 293; bataan- 
sis, imo 203; Caper- 
i 
INDEX 
luteus, 293; macroloma, 293; nigro- 
marginatus, 294; see beam, 295; 
— = ; Ramosii sub- 
gy x Soest i 29 
Polythelis, Bing fusca, 37, 38; Pulsatil- 
» 34 
9 
Potamogeton, 59, 63, 6 
Potentitia, 3243 ye diy divers:- 
folia, 321; Steen, 3233 filipes, 321; 
fruticosa, jun- 
Nut- 
ppd 
Primula i inc $10; 419.521 
robat 
poco ake, 59, 69; lobatus, 69 
sammisia recurva 
Pseudomonas citri, 64 
ares cael aletifolia, 326; anisata, 
oe 
Psidium aS eg 342 
Pterospermites, 57; carolinensis, 58 
Ptilocalais tenuifelis B, 322 
uccinellia Nuttallii, 322 
Puccinia ‘Sabaneta 40; aaron et ; 
additicia, 32; Adox 
podii, So: reer ge a2; 8 ae ment 
andin : emo: s-virginianae, 
: Gan 
, 
41; 
gussoni, 41; eranii-silvatici, 
Glechomatis, 41 ; Gonolobi, 4 
inis Aveiae, 25; Grindeliae, 
reg 41; Haleniae, 41; 
Heieriain ae, 4b: “heterospor, at: 
Heke rae, 41; Holboellii, Hu- 
teri, — : Died dro phylli, a Hyssop 
2; Imperatoriae, 41; irr 32; 
jalscensis, 40; Juelian 4h) Lan- 
41 _ late ia, Lev ies, 
o- 
rphus, 
Copelandii, 292; Elmer- 
204; flabelliformis, 293, 204; 
esm 
; Malvacearum, 41 
