Part 36

Y. GLORIOSA.--The Mound Lily. United States, 1596. This is another well-known hardy species, with long, sharp-pointed leaves, and a handsome, much branched scape, of flowers that are each about 2 inches deep. There are several varieties, differing in colour of foliage, including Y. gloriosa glaucescens, with decidedly glaucous foliage; Y. gloriosa superba, with rigid leaves and a shorter and denser flower scape; and another with variegated leaves. Y. gloriosa recurvifolia is usually dwarfer in the stem than the type, and more inclined to branch than the other species, and less rigid, with recurving leaves that are not so sharp-pointed, The flower panicle is large and very much branched.

The Yuccas all do well if planted in light loam of good quality.

ZELKOVA.

ZELKOVA ACUMINATA (syns Z. japonica and Planera acuminata).--Japan. This resembles very nearly our common Elm in appearance, and being perfectly hardy is to be recommended for planting in this country.

Z. CRENATA (syns Planera crenata and P. Richardi).--Zelkova Tree. Western Asia to Mount Caucasus, 1760. This is a handsome, large growing tree, with oblong deeply-crenated leaves, and small and inconspicuous flowers. For avenue planting or as a standard specimen this is a valuable tree, being quite hardy, and of free and quick growth. P. crenata pendula is a good weeping form, and worthy of culture.

Z. CRETICA.--Crete. A pretty small growing bush or tree of about 20 feet in height, with crenate, leathery, dark green leaves, which are usually fully an inch in length. The leaves are hairy, and the twigs, too, are thickly covered with short grey hairs.

ZAUSCHNERIA.

ZAUSCHNERIA CALIFORNICA.--Californian Fuchsia, or Humming Birds' Trumpet. California and Mexico, 1847. A small-growing, densely-branched shrub, with linear-lanceolate silvery pubescent leaves, and bright red or scarlet tubular flowers, with a long, slender style resembling some of the Fuchsias. It is a pretty and distinct Alpine shrub, and not being perfectly hardy should be assigned a rather warm and sheltered position.

ZENOBIA.

ZENOBIA SPECIOSA (syn Andromeda speciosa and A. cassinaefolia).--South United States, 1800. This is a distinct and pretty hardy species, a native of swampy low-lying districts. It grows about four feet high, and bears pure white, bell-shaped, Lily-of-the-Valley like flowers in great abundance during the summer. In too dry situations it becomes sparse of foliage and unhappy, but grows and flowers freely in light, peaty soil. Z. speciosa pulverulenta is a very desirable variety, the whole plant, stems, foliage, and flowers, being of a pleasing light gray or white colour. Individually the flowers are larger than those of the species.

ADDENDA.

EXOCHORDA.

EXOCHORDA GRANDIFLORA (syn Spiraea grandiflora).--North China. This handsome shrub forms a much branched, spreading bush, about 4 feet to 6 feet high, and flowers abundantly in May. The habit is similar to that of a shrubby Spiraea, but the pure white flowers are as large as those of some of the species of Cherry, and quite unlike those of any known species of Spiraea. The flowers are liable to injury sometimes from late spring frosts, but the plant itself is quite hardy. As a bush on the lawn it is nevertheless highly ornamental and desirable.

MYRICARIA.

MYRICARIA GERMANICA.--Europe, Asia, 1582. A tall, somewhat straggling shrub, very similar to the Tamarisk, with terminal spikes of pink or rosy flowers, produced freely nearly all the summer. It succeeds well in this country in sea-side situations, and is often described as a Tamarisk by gardeners.

TREES SUITABLE FOR PLANTING IN TOWNS.

Acer macrophylla saccharinum Aesculus Hippocastanum rubicunda Ailanthus glandulosa Crataegus Oxyacantha flore-plena tenacetifolia Catalpa bignonioides Cerasus (Prunus), nearly all Gleditschia triacanthos Liriodendron tulipiiera Magnolia acuminata glauca Pyrus of sorts Robinia Pseud-acacia and its varieties viscosa Sophora japonica Tilia, in variet.

SHRUBS FOR TOWN PLANTING.

Amelanchier, in variety Arbutus Unedo Berberis Aquifolium vulgaris Cistus ladaniferus laurifolius Colutea arborescens Daphne Laureola Mezereum pontica Deutzia crenata gracilis Forsythia suspensa viridissima Griselinia littoralis Hibiscus syriacus Hypericum calycinum Hypericum nepalense Koelrenteria paniculata Leycesteria formosa Philadelphus Gordonianus Prunus nana Pyrus japonica Rhus Cotinus Ribes aureum sanguineum Skimmia japonica Syringa (nearly all) Ulex europaeus fl.-pl. Viburnum Opulus Weigelia rosea Yucca gloriosa recurva

TREES FOR THE SEASIDE.

Acer campestre saccharinum Arbutus Unedo Ailanthus glandulosa Aesculus Hippocastanum rubicunda Catalpa bignonioides Fraxinus Ornus

SHRUBS FOR THE SEASIDE.

Atriplex halimus Cerasus lusitanica Cytisus Laburnum scoparius Euonymus japonicus europaeus Fabiana imbricata Griselinia littoralis Hippophae rhomnoides Ilex Aquifolium Laurus nobilis Lycium europaeum Prunus Padus Rhamnus frangula Ribes sanguineum Rosa spinosissima Shepherdia argentea Spirea adiantifolia Syringa persica vulgaris Symphoricarpus racemosus Tamarix gallica germanica Ulex europaea Viburnum Tinus

THE FLOWERING SEASONS OF TREES AND SHRUBS.

The asterisk * after the name denotes that the species continues in flower for a longer period than the month under which it is placed.

JANUARY.

Erica carnea* Chimonanthus fragrans* Crataegus Oxyacantha praecox* Jasminum nudiflorum* Ulex europaeus* Viburnum Tinus*

FEBRUARY.