INDEX 



325 



Shrubs: 



Andromeda polifolia, 198, 199 



Arctostaphylos Uva-tirsi, bearberry, 



124, 125, 727 

 Benzoin aestivalis, spice bush, 205, 



207, 221 



Betida pumila, swamp birch, 199 

 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 

 Ewnymus: 



americana, strawberry bush, 205, 



208, 20p, 274 

 atropurpureus, wahoo or burning 



bush, 205, 207, 208, 274 

 Gaultheria procumbens, checkerberry, 



124, 126, 128, 180, 205 

 Gaylussacia baccata, huckleberry, 132, 



133, 134, 264 



Hamamelis iiirginiana, witch-hazel, 



205, 206, 207, 221, 228, 270 

 Hydrangea arborescens, 265, 267 

 Ilex verticillata, swamp holly, 180, 



181, 181 

 Juniperus: 



communis, common juniper, 124, 

 127 



horizontalis, prostrate juniper, 114, 



121, 124, 127 

 Physocarpus opulifolius, ninebark, 



264 

 Prunus pumila, sand cherry, 119, 120, 



121 



Pyrola elliptica, shinleaf, 124, 126, 128 

 Pyrus arbutifolia, chokeberry, 198, 



199 

 Rhus: 



canadensis, aromatic sumac, 124, 



13, J 3i 

 copallina, dwarf sumac, 124, 130, 



131 

 glabra, smooth sumac, 228, 264 



typhina, staghorn sumac, 124, 130, 



131, 228, 260, 264 

 vernix, poison sumac, 130, 131, 



200 

 Ribes: 



florid-urn, black currant, 205 

 Cynosbati, prickly gooseberry, 205 

 -Rosa acicularis, 129 

 blanda, 129 

 humilis, 129 

 virginiana, 200 

 Salix: 



glancophylla, broad-leaved willow, 



J2o, 260 



syrticola, furry willow, 119, 120, 122 

 Sambmus canadensis, elderberry, 205, 



208, 209, 274 

 Spirea: 



latifolia, meadow-sweet, 180, 181, 



181 

 tomentosa, steeplebush, 180, 181, 



181 

 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 Joeti- 



dus 



Skull cap, Scutellaria galericulata 

 Slate, 40 

 Slugs: 



Agriolimax campestris, 217, 218 

 Pallifera dorsalis, 218 

 Philomycus carolinensis, 216, 218 

 Smart weed, Polygonum 



