356 MISC. PUBLICATION 303, U. 
S. DEPT. OF AGRICULTURE 
Spruce — Continued. 
Bog (Picea mariana). 
Brewer {Picea breiveriana) . 
Cat (Picea canadensis) . 
Colorado blue (Picea pungens). 
Double (Picea mariana). 
Douglas (Pseudotsuga glauca, 
Pseudotsuga taxifolia). 
Engelmann (Picea engelmannii) . 
Lemlock ( Tsuga canadensis ) . 
Red (Picea rudra). 
Single (Picea canadensis). 
Sitka (Picea sitchensis). 
Skunk (Picea canadensis). 
Southern (Picea australis). 
Tideland (Picea sitchensis). 
Weeping (Picea hreiveriana) . 
Western white (Picea aliertiana). 
White (Picea canadensis, 
Picea engelmannii) . 
Spruce pine (Picea mariana, 
Pinus contorta, 
Pinus gladra, 
Tsuga canadensis). 
Squashberry ( Vihurnum acerifolimn, 
Viburnum pauciflorum) . 
Squaw, 
apple (Peraphyllum ramosissimum) . 
bush (Rhus trilotata). 
carpet (Ceanothus prostratus). 
currant (Rites cereum). 
desert-thorn (Lycium torreyi). 
huckleberry ( Vaccinium stamineum ) . 
mat (Ceanothus prostratus). 
thorn (Lycium torreyi). 
Stagbush (Vil)ur?ium prunifolium). 
Stagger bush (Xolisma mariana). 
Staghorn sumac (Rhus glabra, 
Rhus hyphina). 
Starleaf (Chaisya dumosa). 
Steeplebush (Spiraea tomentosa). 
Sticky, 
currant (Ribes viscosissimum) . 
laurel (Ceanothus velutinus). 
rabbitbrush (Chrysothatnnus panicu- 
latus). 
Stickyflower rabbitbrush (Chr^ysothafn- 
nus viscidifloriis) . 
Stiff, 
cornel (Cornus foemina). 
dogwood (Cornus femina). 
sagebrush (Artemisia rigida) . 
Stink currant (Ribes bracteosum). 
Stinking, 
buckeye (Aesculus glabra). 
cedar (Tumion tacoifolium) . 
fir (Abies grandis) . 
willow (Amorpha calif ornica) , 
Stinkwood (Nyssa sylvatica). 
Stone pine, Mexican (Pinus cembrol- 
des). 
Storax, (Styrax officinalis). 
American (Sty rax americana) . 
Downy (Styrax pulverulenta) . 
Powdery (Styrax pulverulenta). 
Sycamoreleaf (Styrax platanifolia). 
Straggle bush (Ribes divaricatum) . 
Straggly gooseberry (Ribes divarica- 
tum). 
Strawberry, 
bush (Evonymus americanus) . 
bush, running (Evonymus obovatus). 
shrub (Calycanthus floridus). 
Stretch-berry (Smilax bona-nox). 
Striped maple (Acer pemisylvanicum) . 
Styrax (Styrax americana) . 
Sugar, 
blueberry ( Vaccinium angustifoli- 
um) . 
bush (Rhus ovata). 
grape (Vitis monticola, 
Vitis rupestris). 
maple (Acer saccharum) . 
maple, black (Acer nigrum). 
pine (Pinus lambertiana) . 
sumac (Rhus ovata). 
tree (Acer saccharum). 
Sugarberry (Celtis mississippiensis, 
Celtis occidentaUs, 
Ehretia anacua). 
Sumac, 
Dwarf (Rhus copallina). 
Evergreen (Rhus virens). 
Fragrant (Rhus aromatica). 
Laurel (Rhus laurina). 
Lemonade (Rhus trilobata). 
Mahogany (Rhus integrifoUa) . 
Michaux (Rhus michauxii). 
Mountain {Rhus copallina). 
Poison (Rhus vernix). 
Shining (Rhus copallina). 
Smooth (Rhus glabra). 
Staghorn (Rhus glabra, 
Rhus typhina). 
Sugar (Rhus ovata). 
Swamp (Rhus vernix). 
Utah (Rhus trilobata). 
Winged (Rhus copallina). 
Yellow (Rhus glabra). 
Summer grape (Vitis argentifolia) . 
Supplejack (Berchemia scandens). 
Suterberry (Xa^ithoxylum america 
num ) . 
Swamp, 
ash (Fraxinus caroliniana) . 
azalea (Rhododendron viscosum). 
bay (Persea pubescens) . 
birch (Betula fontinalis, 
Betula pumila). 
black gum (Nyssa bi flora). 
blueberry (Vaccinium corymbosum) 
blueberry, downy (Vaccinium atro 
coccum). 
candleberry (Myrica carolinensis) . 
chestnut oak (Quercus prinus). 
Cottonwood (Populus heterophylla) . 
currant (Ribes lacustre). 
fly-honeysuckle (Lonicera oblong i 
folia). 
gooseberry (Ribes lacustre). 
haw (Viburnum cassinoides^ 
Viburnum nudum). 
