356 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Spruce Continued. 



Bog (Picea mariana). 



Brewer (Picea, breweriana). 



Cat (Picea canadensis). 



Colorado blue (Picea pungens). 



Double (Picea mariana). 



Douglas (Pseudotsuga glauca, 



Pseudotsuga taxifolia). 



Engelmann (Picea engelma nnii ). 



Lemlock ( Tsuga canadensis ) . 



Red (Picea rubra). 



Single (Picea canadensis). 



Sitka (Picea sitchensis). 



Skunk (Picea canadensis). 



Southern (Picea australis). 



Tideland (Picea sitchensis). 



Weeping (Picea breweriana). 



Western white (Picea albertiana). 



White (Picea canadensis, 



Picea engelmannii) . 

 Spruce pine (Picea mariana, 

 Pinus contorta, 

 Pinus glabra, 

 Tsuga canadensis). 

 Squashberry (Vibttrnum acerifolium, 

 Viburnum pauciflorum). 

 Squaw, 



apple (Peraphyllum ramosissimum) . 



bush (Rhus trilobata). 



carpet (Ceanothus prostratus). 



currant (Ribes cereum). 



desert-thorn (Lycium torreyi). 



huckleberry (Vaccinium stamineum). 



mat (Ceanothus prostratus). 



thorn (Lycium torreyi). 

 Stagbush (Viburnum prunifolium). 

 Stagger bush (Xolisma mariana). 

 Staghorn sumac (Rhus glabra, 



Rhus hyphina). 

 Starleaf (Choisya dumosa). 

 Steeplebush (Spiraea tomentosa). 

 Sticky, 



currant (Ribes viscosissimum) . 



laurel (Ceanothus velutinus). 



rabbitbrush (Chrysothamnus panicu- 



latus). 



Stickyflower rabbitbrush (Chrysotham- 

 nus viscidiflorus) . 

 Stiff, 



cornel (Cornus foemina). 



dogwood (Cornus femina). 



sagebrush (Artemisia rigida). 

 Stink currant (Ribes bracteosum). 

 Stinking, 



buckeye (Aesculus glabra). 



cedar (Tumion taxifolium). 



fir (Abies grandis). 



willow (Amorpha calif ornica). 

 Stinkwood (Nyssa sylvatica). 

 Stone pine, Mexican (Pinus cembroi- 



des). 

 Storax, (Styrax officinalis). 



American (Styrax 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 (SmUax bona-nox). 

 Striped maple (Acer pennsylvanicum) . 

 Styrax (Styrax americana) . 

 Sugar, 



blueberry ( Vaceinium 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 occidentalis, 

 Ehretia anacua). 

 Sumac, 



Dwarf (Rhus copallina). 



Evergreen (Rhus virens). 



Fragrant (Rhus aromatica). 



Laurel (Rhus laurina). 



Lemonade (Rhus trilobata). 



Mahogany (Rhus integrifolia) . 



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 (Xanthoxylum america- 



num). 

 Swamp, 



ash (Fraxinus caroliniana) . 



azalea (Rhododendron viscosum). 



bay (Persea pubescens). 



birch (Betula fontinalis, 

 Betula pumila). 



black gum (Nyssa biflora). 



blueberry (Vaccinium corymbosum). 



blueberry, downy (Vaccinium afro- 

 coccum ) . 



candleberry (Myrica carolinensis) . 



chestnut oak (Quercus prinus). 



cottonwood (Populus heterophylla) . 



currant (Ribes lacustre). 



fly-honeysuckle (Lonicera oblongi- 

 folia,). 



gooseberry (Ribes lacustre). 



haw (Viburnum cassinoides, 

 Viburnum nudum). 



