AN ENCYCLOPADIA 
Pomaderris—continued. 
wrinkled on the upper side ; principal veins very prominent be- 
neath. h. Sft. to 6ft. 1803. Syn. P. aspera. 
P. aspera (rough). A synonym of P. apetala. 
P. betulina (Birch-like).* jl. pale yellow, nearly sessile, in dense, 
globular heads, solitary or two or three together, on short, 
axillary or terminal peduncles; calyx densely hairy; petals 
none. l. oblong or obovate, obtuse, seldom above lin. long. A 
ay shrub or small tree, with elongated branches, (B. M. 
P. discolor (two-coloured). A variety of P. elliptica. 
P. elliptica (elliptic). fl. pale yellow; calyx white-tomentose; 
petals usually broadly cordate or nearly orbicular, concave, on 
slender claws, often narrower, occasionally abortive; cymes 
numerous, in dichotomous panicles, June, J. petiolate, ovate, 
oblong or ovate-lanceolate, obtuse or rarely acute, usually 2in. 
to šin. long, entire or with margins slightly waved, white-tomen- 
tose beneath. h. 6ft. (B. M. 1510.) The variety discolor 
has the calyx tube less silky-hairy, and the leaves often less 
obtuse. 
P. ericifolia (Heath-leaved), A synonym of P. phylicifolia. 
P, lanigera (woolly). A. pale yellow; calyx tube half as long as 
the lobes; petals ovate, concave, on slender claws; panicles 
often larger and less corymbose than in P. elliptica. April. 
l. oblong or ovate-lanceolate, the under side, as well as the young 
branches, clothed with soft, often rusty, tomentum. h. 3ft. 1806 
(B. M. 1823.) Syn. Ceanothus laniger (A. B. R. 569). 
P., ledifolia (Ledum-leaved), fl. pale yellow, few, in small, loose, 
shortly pedunculate cymes in the upper axils; calyx tube very 
short; petals narrow, slightly concave. April. J. narrow, 
oblong, obtuse, about 4in. long, entire, glabrous above, white 
beneath, the margins slightly recurved. h. 2ft. 1824. 
P. phillyreoides (Phillyrea-like). A. pale yellow, variable in 
size; cymes compact, in small, terminal panicles; calyx tube 
shorter than the lobes; petals similar to those of P. elliptica, 
but usually narrower. April. /. seldom ljin. long, oblong or 
oval, obtuse or acute, entire, firm, glabrous or minutely h 
above, softly white or rusty-downy beneath. A. 2ft. 1818. SYN. 
P. andromedeefolia (B. M. 3219). 
P. phylicifolia (Phylica-leaved). fl. pale yellow, small and few, 
in little, loose cymes in the upper axils, the upper ones forming 
thyrsoid, leafy panicles ; petals none. April. l. narrow or linear- 
oblong, nearly sessile, seldom above żin., long; margins much 
revolute; under surface white-tomentose, upper surface hairy ; 
leaves sometimes broader, and nearly flat. h. 2ft. 1819. (L. B. C. 
120.) Syn. P. ericifolia. 
P. vacciniifolia (Whortleberry-leaved). M. cream-colour ; cymes 
small, in ovoid, terminal panicles of about lin. in length ; calyx 
tube very short; petals broad. Z. ovate or nearly orbicular, 
very obtuse, seldom above jin. long, glabrous above, white on 
the under surface. 1869. 
POMARIA (named after Pomar, physician to 
Philip III. of Spain). ORD. Leguminose. A genus com- 
prising five or six species of greenhouse, unarmed trees 
or shrubs, more or less black-dotted, mostly extra-tropical 
South American, and now included, by Bentham and 
Hooker, under Cesalpinia. Calyx segments entire or 
_ at length loosely glandulose-fimbriate. Pods oblong or 
lanceolate, oblique or falcate, glandulose. Leaflets usually 
small, coriaceous. For culture of P. glandulosa, the only 
species introduced, see Ceesalpinia. 
P. glandulosa (glandular yellow, disposed in axillary 
racemes; petals Te shertiy emt May. l. abruptly 
bipinnate; stipules pinnatifid. h. 2ft. New Spain, 1826. 
branches, calyx, and corolla, are glandular. 
POMATOCALPA. A synonym of Cleisostoma. 
POMAX (from poma, an operculum; referring to 
the operculum of the fruit). ORD. Rubiacee. A mono- 
typic genus. The species is a small, greenhouse, branched, 
hirsute or glabrous under-shrub. It only differs from 
ia (which see for culture) “in the simple 
flower-heads forming an umbel, instead of being united in 
a compound head” (Bentham). 
P, hirta (hairy). A synonym of P. umbellata. 
P, umbellata (umbelled greenish-white, disposed in a 
terminal, e acta Aia thie last leaves ; corolla about jin. 
— July. l. petiolate, ovate, elliptical, or lanceolate, mostly 
under jin. long, or rather more when narrow." h. not more 
lft. Australia, 1826. SYNS. P. hirta, Opercularia umbellata. 
POMBALIA. Included under Jonidium. 
POME. A fleshy, many-celled fruit, e.g., an Apple. 
POMEZ. A tribe of Rosacew, 
OF HORTICULTURE. 197 
POMEGRANATE (Punica Granatum). A deciduous 
tree, which ranges from 15ft. to 20ft. in height, and has 
numerous, slender branches some being armed with sharp 
thorns. It is a native of Cabul and Persia, and is pro- 
bably wild in North-west India; it is very commonly 
cultivated throughout the warmer regions of the globe. 
The fruit of the Pomegranate will be remembered in 
connection with Scripture history, where it is mentioned 
in conjunction with that of the Vine, Fig-tree, Olive, &c. 
The cultivation of the tree dates back, therefore, to re- 
mote antiquity: it is said to have been introduced to 
this country before 1600, and to have been cultivated by 
Gerarde. Although such an old occupant of our 
gardens, it is very seldom that fruits are ripened. The 
fruits “are generally about the size of the fist, and 
have a tough, leathery rind, of a beautiful deep 
golden colour, tinged with red, and are crowned with 
the remains of the calyx lobes” (‘Treasury of Botany”). 
Fic. 249. FRUITING BRANCHLET OF POMEGRANATE. 
See Fig. 249. As an ornamental tree, the Pomegranate 
is much prized in the South of Europe, and in many 
Eastern countries; but in Britain even its flowering 
is chiefly limited to the most exceptionally favoured 
localities. There is a double-flowered variety, and con- 
siderable variation of colour exists amongst those 
both with single and double flowers. The flowers 
are produced on the ends of branches made annually, 
sometimes singly, at others three or four together; 
generally, where they appear at all, a succession is kept 
up: from about June until September. In inland and 
northern districts, the Pomegranate should be grown 
against a south wall, or in a tub or large pot in a 
greenhouse. A rich, loamy soil is that best suited to its 
requirements. Single varieties may be raised from seeds, 
and all varieties increased by cuttings, suckers, layers, 
or by grafting, using the cgmmon sort as a stock. 
PONCELETIA. A synonym of Sprengelia (which 
see). 
PONDWEED. See Potamogeton. 
PONERA (from poneros, miserable; referring to the - 
appearance of the species). Syn. Nemaconia. ORD. 
Orchidew. A genus comprising six or seven species of 
stove, epiphytal orchids, natives of Central America and 
Mexico. Flowers rather small, axillary, in tufts upon the 
young leafy or the old leafless stems; sepals erect, fleshy, 
the lateral ones largest, and connate with the elongated 
foot of the column; petals free; lip naked, two-lobed, 
wedge-shaped, articulate with the foot of the column, 
which is short and terete; anther membranous, four- 
celled, containing four pollen masses, adhering in pairs by 
means of two powdery caudicles. Leaves alternate, in 
two rows, almost grass-like. The species introduced— ~ 
amethystina, graminifolia, Kienastii, leucantha, macro- 
glossa, pleurostachys, and striata—are all of i 
interest only. 
. 
