PiEO 
OXY 
PAG 
OZO 
deal bats . . 
deflexi . . 
dichopt^rS 
Fischer! . . 
fcetidd, 1 . . 
glabrii . . . 
grandiflorS 
leptopt^rS . 
Lambert! . . 
leptopliylla . 
long! rostra, 2 
micrnphj'lla . 
montanii, 3 . 
myriophylla . 
oxyphvlla 
Pallash , . 
pilesa . . . 
prostrata, 4 . 
songarica . 
suiphutaa . . 
uncata . . . 
uralensis, 5 . 
vertieillar!s . 
viscdsa 
, Purple . 
, Purple 
, Blue . . 
Blue . . 
, Pa. yel. . 
Red* 
Blue . . 
Purple . 
Red . . 
Purple . 
Pa. yeL . 
Pur. whb . 
Purple 
Pa. yel. . 
Pa. yeL . 
Blue wht. 
Violet . . 
Cream . . 
White . . 
Purple 
Blue wht. 
White . 
Her. P. Cauca 
Her. P. Siberi 
Her. P. Siberi 
Her. P. AlUi 
Her. P. SwitzerL 
Her. P. Dahuria 
Her. P. Siberia 
Her. P. Siberia 
Her. P. Missour 
Her. P. Siberia 
Her. P. Siberia 
Her. P. Siberia 
Her. P. Austria 
Her. P. Siberia 
Her. P. Siberia 
Her. P. Siberia 
Her. P. Siberia 
De. Tr. Siberia 
Her. P. Altai 
Her. P. Siberia 
Her. P. Aleppo 
Her. P. Siberia 
Her. P. Siberia 
Her. P. SwitzerL 
OxYURA, Decandolle, Supposed to be from oxys, 
. 1800 
. 1815 
. 1817 
. 1819 
. 1823 
. 1820 
. 1818 
. 1811 
. 1818 
. 1820 
. 1819 
. 1581 
. 1818 
. 1816 
. 1818 
. 1732 
. 1820 
. 1824 
. 1820 
. 1768 
. 1800 
. 1819 
. 1817 
sharp. 
and oura, a tail ; but the application is not evident. 
Linn. 19, Or. 2, Nat. Or. Compositce. An ornamental 
plant, having somewhat the appearance of Chry- 
santhemum coronarium. It grows in any common 
soil. 
chrysanthemoides . Yellow . 7, H. A. California . 1834 
OzoNiuM, Persoon. From ozos, a branch ; the filaments 
are branched. Linn. 24, Or. 9, Nat. Or. Fungi. 
This plant is found during autumn on decayed 
wood — auricdmftm. 
OzoTHAMNUS, R. Brorvu. From ozos, a branch, and 
thamnos, a shrub. Linn. 19, Or. 1, Nat. Or. Com- 
positos. Ornamental plants, growing freely in an 
equal mixture of loam and peat ; and cuttings of 
the young wood wiU root in a few days planted in 
sand, under a glass. Synonymes : 1. Chrysocoma 
cinerea. 2. Eupatorium ferrugineum. 3. E. ros- 
marinifolium. 
cingrefis, 1 . . . Yellow . 7, H. Ev. S. V. D. L. . 1820 
ferrugineus, 2 . Yellow . 7, O. Ev. S. V. D. L. . 1822 
rosmarinifolius, 3 Yellow . 7» G. Ev. S. V. D. L. . 1822 
P. 
P ACHIDENDRON, Willdenow. From pachys, 
thick, and dendron, a tree. Linn. 6, Or. 1, Nat. 
Or. Liliaceoe. A genus of tree Aloes, thriving in a 
mixture of sandy loam mixed with old lime and 
brick rubbish ; the pots in which they are grown 
must be well drained, that the moisture may rea- 
dily pass off. They require but little water in 
winter, and are increased from suckers, or young 
side shoots, when they are produced ; leaves take# 
off close from the stem, and laid to dry for a few 
days, then planted in pots of dry soil, will throw 
out young plants at their base. Synonymes: 1. 
Aloe africana. 2. A. angustifolia. 3. A. ferox. 4. 
A. principis. 5. A. pseudo-africana, africana an- 
gustior. 6. A. pseudo-ferox, subfirox. 7. A. supra- 
Iwvis. 
africanum, 1 , . Red . . 7> G. Ev. S. C. G. H. . 1819 
angusUfOlium, 2 . Red . . 7, G. Ev. S. C. G. H. . 1806 
ferox, 3 . . . . Yellow . 5, O. Ev. S. C. G. H. . 1759 
pr!nclpis, 4 . . . YeUow . 7, G. Ev. S. C. G. H. . 1821 
pseudO-africanum, 5 Orange . 6, G. Ev. S. C. G. H. . 1731 
pseudO-ferOx, 6 . . Orange . 5, O. Ev. S. C. G. H. .1 820 
supralsvg, 7 . . Orange . G. Ev. S. C. G. H. . 1731 
Pachnocybe, Berkley. From pachne, hoar-frost, and 
kybe, a head. Linn. 24, Or. 9, Nat. Or. Fungi. 
These substances are found on decaying plants of 
various sorts — aclculd, alblda, ferrugtnSd, grlsSd, 
subuldtd. 
Pachynema, R. Brown. From pachys, thick, and 
nema, a, filament; filaments very thick. Linn. 10, 
Or. 3, Nat. Or. Dilleniaceoe. This little leafless 
shrub thrives best in a mixture of loam and peat ; 
cuttings strike root freely in sand, under a glass, 
complanatum . . G. Ev. S. N. HolL . 
Pachypodium, Lindley. From pachys, thick, and 
podion, a peduncle ; thick footstalks. Linn. 5, Or. 
1, Nat. Or. Apocynacem. This succulent and tube- 
rous-rooted genus succeeds in an equal mixture of 
light turfy loam, peat, and sand ; as the plants 
require scarcely any water in winter, the pots 
must be well drained, that the moisture may pass 
off readily ; cuttings taken off, and laid to dry till 
the wound is dried up, then planted in a pot of 
dry soil in spring, will strike root, and produce 
tubers before winter. Synonymes: 1. Echites suc- 
culenta. 2. E. tuberosa, 
Bueculentiim, 1 . Wht. red . 5, G. De. S. C. G. H. . 1820 
tuberosQm, 2 . . Wht. red . 8, G. De. S. C. G. H. . 1M13 
Pachyrhizus, Richard. From pachys, thick, and 
rhiza, a root ; alluding to the thick tuberous roots 
of the plants. Linn. 17, Or, 4, Nat. Or. Legumi- 
nosas. The plants succeed well in a light rich soil ; 
they may be increased from cuttings in sand, under 
a glass, by the tubers of the roots, or by seeds. 
Synonyms: 1. Dolichos bulbosus. 
angulatus, 1 . . Purple . 7, S. Ev. Tw. E. Ind. . . 1781 
Pachysandra, Michaux. From pachys, thick, and 
[ 229 ) 
aner, a man ; in allusion to the thickness of the 
stamens. Linn. 21, Or. 4, Nat Or. Euphorbiaceae. 
This genus of dwarf growing plants thrives in any 
common soil, and may be planted near the front of 
flower-borders; it is increased freely by suckers 
from the roots. 
eoriaeea . . . White. . 6, S. Ev. S. Nepal . .1822 
procumbens . . White . . 4, H. Her. P. N. Amer. . 1800 
PadIna, Adanson. Derivation doubtful. Linn. 24, 
Or. 7, Nat. Or. Fungi. A small brownish-coloured 
species, found in the ocean — dedstd. 
Pi9EDERiA, Linn. From pcederos, opal; in reference 
to the transparent berries. Linn, b. Or. 1, Nat. Or. 
Cinchonaceae. The species are remarkably free 
growers; any kind of light rich soil suits them, 
and cuttings root readily in the same kind of soil, 
under a glass. 
fcEtida .... Purple . S. Ev. S. China . . 1806 
P.ffiDER6TA, Linn. The ancients applied this name 
to a species of Acanthus. Linn. 2, Or. 1, Nat. Or. 
Scrophulariacex. These pretty dwarf alpine plants 
are well adapted for rock-work; light sandy soil, 
or an equal mixture of peat, loam, and sand, will 
suit them very well ; if grown in the open border, 
the situation should be dry and airy ; increased 
from seeds. 
Ageria .... Ye/low . 5, H. A. Italy . . 1824 
Bonarota . . . Blue . . 5, H. A. Austria. . 1818 
P.®6nia, Linn. The physician Paeon was the first 
who used it in medicine. Linn. 13, Or. 2, Nat. Or. 
Ranunculacece. Beautiful flowering plants, mostly 
hardy enough to endure our winters, P, Moutan, 
and its varieties, though able to bear a moderate 
degree of frost, do not flower so well as when 
planted out in the border of the conservatory ; they 
bear forcing well; a rich loamy soil suits them 
best. The shrubby kinds are increased from cut- 
tings taken off in August or September, with part 
of the wood of the preceding year attached, and 
planted in a sheltered situation where they will 
root freely. The herbaceous species are increased 
by dividing the plants at the roots, taking care to 
leave a bud to each slip; the new varieties are 
obtained from seeds. Synonymes: 1. P. Makoya. 
2. P. laciniata. 3. P. tartarica, 4. P. dahurica. 5. 
P. sessiliflora. 
albiflora . . 
Candida 
festa, 1 . . 
fragrans . . 
HuniSi . . 
PottsH . . 
Reevgsil . . 
Richardson! 
rubescens 
siblrica . . 
tatarica . . 
. White . . 5, H. Her. P. Siberia , 
. Flesh . . 6, H. Her. P. Siberia . 
Wilt, pink 6, H. Her. P. 
. Red . . 6, H. Her. P. China . 
.Red . . 5, H. Her. P. China . 
. Crimson . 6, H. Her. P. China . 
. Pink . . 6, F. Her. P. China , 
. AVhite . . 6, F. Her. P. SeedL . 
. Pink . . 5, H. Her. P. Siberia . 
, White . . 5, H. Her, P. Siberia . 
. Flesh . . 5, H. Her. P. Siberia . 
1822 
,1822 
1833 
