586 
THE DICTIONARY OF GARDENING, 
PEAR BLIGHT. See Apple and Pear Blight. 
PEAR-LEAF BLISTER (Taphrina buliaia). See 
i Pear—Fungi. 
PEAR-LEAF BLISTER MITE (Phytoptus pyri). 
See Pear—Insects, Vol. III. 
PEAR-LEAF CLUSTER CUPS (Gymnosporan- 
gium sabine). A popular name bestowed upon the fungus 
described and illustrated in Vol. III., p. 54. 
PEAR-LEAF RUST 
See Pear—Fungi, Vol. III. 
PEAR MIDGE (Diplosis pyrivora). This is a 
dipterons, gnat-like fly, which appears in the early spring. 
the females depositing their eggs in the unexpanded 
blossoms. The larvee when hatched enter the young fruit, 
hindering its growth, causing it to be deformed, to crack, 
and eventnally to fall. The pupal state is assumed in the 
soil, and the insect passes the winter in that condition. 
Spraying with arsenite is not of much good, as to do so 
when the fruit trees are in blossom would be to sacrifice 
the whole crop; while, once the insects are in the young 
fruits, they are perfectly safe from insecticides. Pre- 
ventive measures consist in the collection of the fallen 
frnits which show signs of infestation, and burning them 
before the larve can enter the ground to pupate. In 
America, kainit, as a dressing under the trees in late 
summer, has been found of service, using it at the rate 
of half a ton per acre. The gnat is only 2mm. long, 
and the larva also abont 2mm., yellowish, and footless. 
These larve are very lively, and move by a series of 
jerks and bends much after the fashion of the aquatic 
larve of certain relatives. Infested frnits which are 
hanging might readily be shaken on to sheets laid under 
the trees. 
PEAR SCAB. See Apple and Pear Scab. 
PEAR SUCKER (Psylla pyrisuga). 
Insects, Vol. III. 
PEARL CUDWEED, or PEARLY EVER- 
LASTING.: See Anaphalis margaritacea. 
PEAT-PLANTS. Plants that thrive best in peat 
include many tender and hardy species far too numerous 
to name. A few of the principal are many kinds of 
Orchids, Ericas, Epacris, and Azaleas grown under glass. 
A great many of the American shrubs and plants require 
peat, as do all the bog plants amongst hardy subjects. 
PEDICULARIS. According to the Kew authorities, 
P.. Hoffmeisteri is synonymous with P. megalantha. 
PEDILANTHUS. Of P. tithymaloides there are 
two forms, variegatus and v. cucullatus, each haying 
leaves bordered with white, and in the latter the edges 
of the leaves are drawn up, imparting a cupped effect. 
P. carinatus is synonymous with P. tithymaloides. 
PEKEA. Included under Caryocar (which see). 
PELARGONIUM. Including Dimacria. To the 
species and varieties described on pp. 61-5, Vol. III., the 
following should be added : 
P. acerifolium (Maple-leaved). 
losum. 
P. atrum (dark). The correct name of P. hirsutum. 
P. Cotyledonis (Cotyledon-like). #. white, not unlike those 
of P. zonale. J. ovate, peltate, dark green, hairy. Stems 
thick, fleshy, branched, dark brown. St. Helena (on rocky 
cliffs), 1899. 
P. Drummondi (Drummond's). #. rosy-red; petals obovate, 
the two posterior ones conniving and streaked with red; 
(Gym nospora ngium Sabine). 
See Pear— 
The correct name of P. angu- 
peduncles 3in. to 6in. long, many-flowered. May. J. long- 
petiolate, 3in. to 5in. across, orbicular-cordate, five-lobed, 
crenate-toothed ; stipules very large. h. 2ft. or more, 
Australia, 1892. A pubescent under-shrub. (B. M. 7346.) 
P. hederzefolium (Ivy-leaved). A synonym of P. peltatwm. 
P. lateripes (lateral-stalked). fl. im’ many-flowered umbels. 
l. cordate, five-lobed, somewhat toothed, fleshy, glabrous. 
Stem shrubby; branches fleshy, terete. 1807. Very like the 
Ivy-leaved Pelargonium (P. peltatum), but the petiole is 
inserted at the margin of the leaf. 
Pelargonium—continued. 
P. multibracteatum (many-bracted). #. white, numerous, 
umbellate. /. deeply lobed, bronzy-green, marked with a dark 
zone. Stems trailing. Abyssinia, 1892. 
P. odoratissimum (very fragrant). //. white, very small; 
peduncles five- to ten-flowered. July. 7. strongly and sweetly 
aromatic; cauline ones roundish-cordate, very obtuse, entire 
or repand-lobulate, velvety, on petioles 6in. to 10in. long. 
Stem short, simple or branched; Howering branches long and 
trailing. 1724. Shrubby. (Sw. Ger. 299.) 
P. saxifragoides (Saxifrage-like). l. pink and purple, small. 
1. bright green, fleshy, resembling those of a Saxifrage. 1890. 
A dwarf, compact species, belonging to the same group as 
P. peltatum. 
P. violareum (Viola-like). 
The correct name of P. tricolor. 
Varieties. The following is a list of selected varieties : 
Large-flowered Show Pelargoniums. 
BLUSH-ROSE, ground colour blush-rose, upper petals blotched 
with crimson; J. DovuGLas, rosy-pink, distinct white centre, 
upper petals blotched with maroon, free habit, with 
large bold flowe J. W. Hayes, a dark-coloured sport from 
MARTIAL ; LILy, lower petals rosy-crimson, upper petals blotched 
with rich crimson, pale edges, a pretty, distinct variety. 
Decorative Pelargoniums. 
ALICE M. LOVE, salmon-rose, free, and fine habit; EMPRESS OF 
InpIA, deep salmon-scarlet, upper petals blotched with 
crimson, pale centre, fine habit, excellent; H. J. JONES, rosy- 
red, maroon blotch in upper petals, dwarf, and very free; 
Lorp ROBERTS, rich rosy-red, shaded with cerise, a lovely 
variety, of fine, free habit. 
Zonal and Nosegay Pelargoniums. 
Single-lowered Varieties adapted for Pot Culture. ADOLPHE 
BRISSON, carmine, shaded with pink towards a white centre, 
remarkably floriferous, and of fine, dwarf habit; ALBION, pure 
white, dwarf, and very free; BIRTHDAY, pale salmon, large 
flowers and _ trusses, excellent; CRABBE, salmon-red, fine form, 
large floweiS and trusses, dwarf, and free; JULES LEMAITRE, 
crimson, large trusses, very free-flowering; LECOMTE DE 
LISLE, orange-scarlet, shading to a beautiful blush-pink centre, 
very free and good; MADAME BEAUVRON, pink, deeply spotted 
with red, a pretty and unique variety, of good tloriferous habit ; 
Miss JOLIFFE, soft pink, fine form, dwarf, and excellent; Mrs. 
ROBERT CANNELL, salmon, large flowers, freely produced in 
large trusses; NIAGARA, pure white, dwarf, and free-flowering ; 
PAUL CRAMPEL, crimson-scarlet, very large flowers and 
immense trusses, one of the best ; PHYLLIS, salmon, excellent ; 
ZENOBIA, rosy-scarlet, very free-flowering. 
Single-flowered Varieties specially adapted for Bedding. ALBION, 
white, dwarf, and free-flowering; Mrs. FRENCH, pink, very 
free, and of compact habit; MRs. NORMAN, salmon, very 
Fig. 622. 
DOUBLE ZONAL PELARGONIUM. 
