770 
Index 
Odosyllis — Continued. 
sellata Heller, 607, 614. 
similis Heller, 612, 615. 
subsulfurea Heller, 605, 606, 607, 614. 
terrena, 613. 
vitiosa Pasc., 612, 613. 
Oecaphylla smaragdina Fabr., 425. 
Oedemutes, 439. 
Oenotheraeeae, 369. 
OKAMOTO, KIKUO, Secondray sexual 
characters in the loach Misgurnus 
anguillicaudatus Cantor, 723. 
Oldenlandia Linn., 383. 
corymbosa Linn., 383. 
herbacea (Linn.) Roxb., 384. 
heynii G. Don, 384. 
repens Burn, f., 384. 
repens Mant., 384. 
tenuifolia Burm. f., 383. 
Oleaceae, 370. 
Olea indica Burm. f., 370. 
Ommadius abscissas Gorh., 533. 
aurulentus Heller, 533. 
bakeri Heller, 533. 
fasciatus Kuw., 533. 
vespiformis Gorh., 534. 
Onara, 217. 
Ononis Linn., 355. 
asphaltoides DC., 354. 
persica Burm. f., 355. 
sicula Guss., 355. 
Opatrinae, 442. 
Ophioglossum circinnatum Burm. f., 336. 
pedatum Burm. f., 336. 
Ophioliaceae, 112. 
Opisthorchis felineus (Riv. ), 243 , 244. 
pseudo-f elineus, 243. 
wardi Wharton, 243. 
Orchidaceae, 344. 
Orchitis, 281. 
Origanum benghalense Burm. f., 378. 
Osmoxylon, 678. 
Othippia impexa Heller, 622. 
urbana Faust, 622. 
Otidognathus elegans Fairm., 623. 
pictus Heller, 623. 
Oxydontus Chaud., 529. 
Oxyuris, 268. 
P 
Pachyrrhynchinae, 542. 
Pachyrrhynchus argus, 547. 
bakeri Heller, 542. 
gemmato Waterh., 543. 
gloriosus Faust, 543. 
immarginatus Kr., 543. 
inclytus Pasc., 544. 
modestior Behrens, 544. 
modestior Behrens var. transversatus 
Heller, 544. 
pavonius Heller, 543. 
psittacinus Heller, 543, 644. 
psittaculus Heller, 543, 
rugicollis Waterh., 544. 
rugicollis Waterh. var. aurinius Heller, 
544. 
Paederia Linn., 384. 
foetida Linn., 384. 
tomentosa Blume, 384. 
Palmae, 112. 
Panax cochleata DC., 369. 
Panicum Linn., 338. 
americanum Linn., 338, 339. 
arnottianum Nees, 331. 
glaucum Linn., 338, 339. 
malabaricum (Linn.) Merr., 331. 
punctatum Burm. f., 338. 
r evens (non Linn.) Burm. f., 331. 
Panus Fries, 106. 
cladophora Berk., 106. 
Parameria sp., 92, 112. 
Parapries Heller, 558, 576. 
histrio Faust, 559. 
Parapsammophila, 671. 
Parashorea plicata Brandis, 102-104, 112. 
Parietaria indica Burm. f., 347. 
indica Linn., 347. 
zeylanica Linn., 347. 
Parkia timoriana (DC.) Merr., 97, 104, 112. 
Parlatoria brasiliensis Morr., 426. 
ziziphus (Lucas), 426. 
Pavetta indica (non Linn.) Burm. f., 331. 
Pedininae, 440. 
Pelopaeus Latr., 673. 
conspicillatus Costa, 675. 
spirifex Latr., 673. 
Peltaria garcini Bunn, f., 361. 
Pennatula phalloides, 248. 
radiata, 247. 
Pennisetum L. C. Rich., 338. 
americanum K. Schum., 339. 
glaucum (Linn.) R. Br., 338. 
spicatum R. & S., 339. 
typhoideum A. Rich., 338, 339. 
Pergularia cordata (Bunn. f. ) Merr., 373. 
glabra Linn., 372. 
minor Andr., 373. 
odoratissima Sm., 372, 373. 
Periploca dubia Burm. f., 373. 
Peristrophe Nees, 383. 
acuminata Nees, 383. 
blumeana Nees, 383. 
hyssopifolia (Burm. f.) Merr., 583. 
salicifolia Hassk., 383. 
PERKINS, GRANVILLE A., The expres- 
sion of the octet theory of valence in 
structural formulas, 1 ; Unsymmet- 
rical addition to the double bond, 
I : A theory of the reaction mechan- 
ism of the direct union, 645 ; The 
structure of chlorine dioxide and re- 
lated compounds, 729. 
Permeability of citrus leaves to water, 115. 
Perrhaebius Pasc., 558. 
delicatus Heller, 664. 
directus Heller, 565, 
elegans Heller, 564. 
ephippiger Pasc., 559. > 
histrio Faust, 564. 
x-album Heller, 563. 
Persea gratissima Gaertn., 104, 106, 112. 
Petosiris pars, 523. 
