CHAPTER XVI 



SANDY, STERILE SOIL 



This chapter is supplementary to the last. A few plants, not 

 strictly roadside or field plants, those found, perhaps, on hill- 

 sides whose good soil has been washed away, along the edges of 

 open woods or upon dry banks, are grouped here. No soil is 

 too poor to support vegetable life. Mosses and lichens cover even 

 rocks. The frostweed and orange grass seem to require little 

 or no nitrogenous substance such as helps to make fertile soil. 



Bear or Black Scrub Oak (Qiicrcus ilicifolia). Page 382. 

 Coast Jointweed (Poly gonclla art iculala). Page 58. This often 



borders roadsides running through pine forests. 

 Indian Chickweed (Mollugo vcrlicillata). Page 62. In garden 



paths or along sandy banks of streams. 

 Sand Spurrey (Spergularia rubra). Page 253. 

 Pearlwort (Sagina decumbens). Page 62. 

 Thyme-leaved Sandwort (Arenaria scrpyllifolia). Page 64. 

 Hedge Mustard (Sisymbrium officinale) . Page 170. 

 Dwarf Thorn (Crataegus tomentosa). Page 398. 

 Low or Running Blackberry (Rubus canadensis). Page 399. 

 Sand Blackberry (R. cuneifolius) . Page 399. 

 Low Bush Blackberry (R. trivialis). Page 399. Near the coast. 

 Pasture Rose (Rosa humilis). Page 439. 



Sand Cherry (Prunus pumila). Page 401. Also in Chapter XII. 

 Wild Sensitive Plant (Cassia nictitans). Page 177. 

 Rattle-box (Crotalaria sagittalis). Page 179. 

 Scotch Broom (Cytisus scoparius). Page 430. 

 Wild Lupine (Lupinus perennis). Page 313. Found often on 



the edges of dry, especially pine, woods. 

 Hoary Pea. Goat's Rue. Catgut (Tephrosiavirginiana). Page 



260. 

 (T. spicata). Page 261. 

 (T. hispidula). Page 261. 

 Bush Clover (Lespedeza procumbens). Page 315. Near the 



coast. 

 (L. violacea). Page 316. 

 (L. Stuvci). Page 316. 



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