INDEX 



325 



Sh rubs Cont inued 



Andromeda polifolia, 198, 199 



Arctostaphylos Uw-ursi, bearberry, 



124, 125, 727 

 Benzoin aestivalis, spice bush, 205, 



207, 221 



Beiula pumila, swamp birch,, igg 

 Cephalanthus occidentalis, button 



bush, 177, 179, 241, 274 

 Chamaedaphne calyculata, leatherleaf, 



198, 199, 200 

 Chimaphila umbellata, Prince's pine, 



124, 126, 128 

 Cornus: 



alternifolia, alternate-leaved dog- 

 wood, 228 



Amomum, silky dogwood, 241 



canadensis, pigeon berry, 205, 209 



paniculata, panicled dogwood, 228, 

 264 



stolonifera, red-osier dogwood, 122, 



123, 124, 183, 200, 241, 260 

 Diermlla Lonicera, bush honeysuckle, 



132, 133, 134 



Dirca palustris, leatherwood, 205, 209 

 Evonymus: 



americana, strawberry bush, 205, 



208, 20p, 274 

 atropurpureus, wahoo or burning 



bush, 205, 207, 208, 274 

 Gaultheria procumbent, checkerberry, 



124, 126, 128, 180, 205 

 Gaylussacia baccata, huckleberry, 132, 



133, 134, 264 



Hamamelis virginiana, witch-hazel, 



205, 206, 207, 221, 228, 270 

 Hydrangea arborescens, 265, 267 

 Ilex verticillata, swamp holly, 180, 



181, 181 

 Juniper us: 



communis, common juniper, 124, 

 127 



horizontalis, prostrate juniper, 114, 



121, 124, 127 

 Physocarpus opulifolius, ninebark, 



264 

 Prunus pumila, sand cherry, 119, 720, 



121 



Pyrola elliptica, shinleaf, 124, 126, 128 

 Pyrus arbutifolia, chokeberry, 198, 



199 

 -Rhus: 



canadensis, aromatic sumax:, 124, 



130, 131 

 copallina, dwarf sumac, 124, 130, 



131 

 glabra, smooth sumac, 228, 264 



typhina, staghorn sumac, 124, 730, 

 131, 228, 260, 264 



vcrnix, poison sumac, 730, 131, 



200 

 Ribes: 



floridum, black currant, 205 



Cynosbati, prickly gooseberry, 205 

 Rosa acicularis, i2g 



blanda, 129 



humilis, 129 



virginiana, 200 

 Salix: 



glaucophylla, broad-leaved willow, 

 720, 260 



syrticola, furry willow, 119, 720, 122 

 Sambacus canadensis, elderberry, 205, 



208, 209, 274 

 Spirea: 



salicifolia, meadow-sweet, 180, 



l8l, l8l 



tomentosa, steeplebush, 180, 181, 



l8l 



Staphylea trifolia, bladdernut, 273, 



274 

 Vaccinum: 



macrocarpon, large cranberry, 198 

 pennsyhanicum, blueberry, 132, 



264 



oxycoccos, small cranberry, 198 

 Viburnum: 



acerifolium, maple-leaved vibur- 

 num, 205, 207, 241 

 lentago, nannyberry, 205, 207, 208, 



228 

 opulus, high bush cranberry, 205, 



207, 208 



Zanthoxylum americanum, prickly 

 ash, 241, 273, 274 



Shooting star, Dodecatheon meadia 

 Shooting star, see Meteor 

 Silurian period, 33, 38, 47, 48 

 Siphlurus alternatus, May-fly nymph, 



287 



Skokie Bay, 81 

 Skokie Marsh, 81 

 Skunk cabbage, Symplocarpus foeti- 



dus 



Skull cap, Scutellaria galericulata 

 Slate, 40 

 Slugs: 



Agriolimax campestris, 217, 218 

 Pallifera dorsalis, 218 

 Philomycus carolinensis, 216, 218 

 Smart weed, Polygonum 



