The shrubs and trees given in the group for refined lawn masses are confined largely to those sorts which are not generally available throughout the east for border planting by reason of their soil and moisture requirements. The native collected plants are very similar to the same sort of material found throughout the northern central states.

a. Refined lawn masses:

Abelia grandiflora Hybrid Abelia

Acer palmatum

Japanese Maple Azalea hinodigiri

Crimson Evergreen Azalea Azalea indica

Indian Azalea

Berberis buxifolia Box-leaved Barberry

Berberis darwini Darwin's Barberry

Berberis ilicifolia

Holly-leaved Barberry

Calluna vulgaris

Scotch Heather Cornus mas

Cornelian Cherry

Cornus paniculata

Grey Dogwood Cotoneaster francheti

Franchet's Rose Box

Cotoneaster simonsi Himalayan Rose Box

Deutzia gracilis

Slender Deutzia Diervilla hybrida

Hybrid Weigela

Enkianthus perulatus Enkianthus

Erica mediterranea Pink Heather

Forsythia suspensa fortunei Fortune's Golden Bell

Lonicera maacki Late-blooming Honeysuckle

Philadelphus lemoinei Lemoine's Mock Orange

Pieris floribunda

Mountain Fetterbush

Prunus triloba Flowering Plum

Spiraea vanhouttei Van Houtte's Bridal Wreath

Syringa vulgaris hybrida Hybrid Lilac

Viburnum carlesi Korean Viburnum b. Native and collected plants:

Acer circinatum Vine Maple

Calycanthus floridus Strawberry Shrub

Clethra alnifolia Sweet Pepper Bush

Cornus nuttalli Oregon Dogwood

Cornus stolonifera

Red Osier Cornel Elaeagnus angustifolia

Russian Olive Holodiscus discolor ariaefolius

Ocean Spray

Philadelphus lewisi

Native Mock Orange Rhus glabra

Smooth Sumac Rosa blanda

Meadow Rose

Rosa lucida Glossy Rose

Symphoricarpos racemosus Snowberry

Symphoricarpos vulgaris Indian Currant

Viburnum americanum American High-bush Cranberry