109 



delimitation occur northward and westward, through the land 

 of hills, of parallel mountain-areas with intervening trough-like 

 valleys, of red soil derived from Triassic rock or of black soil 

 from Ordovician limestone, of various soils derived from the 

 ridges of shale, gneiss and sandstone, appears self-evident. In 

 the northern portion of our territory glaciers, building lake and 

 gravel habitats, have left us a new series of environmental con- 

 ditions. Mr. Taylor's suggestive Flora does not attempt the 

 detailed analysis of distribution which is demanded. I believe 

 that the careful working-out of the ranges of the species of a 

 few well-selected families of plants will give the knowledge we 

 need for the dividing into phytogeographic areas of this varied 

 inland — knowledge which will be nearly as definite as if multi- 

 plied by such a wealth of data as is presented by Dr. Stone. 

 The problem is fascinating and it is with reluctance that I realize 

 that the Scrophulariaceae have not yet been observed over a 

 sufficient area or with sufficient thoroughness to warrant basing 

 upon this study any contribution toward such a survey. 



Our present study then attempts but these three goals: to 

 present keys contrasting the genera and species of Scrophulari- 

 aceae in our flora, to make certain the nomenclature, and to give 

 preliminary observations of distribution. 



A. Corolla with the posterior lobes external in the bud. 



( Antirrhinoideae . ) 



B. Filaments five. Stigma capitate. Capsule septi- 



cidal. Sepals five, distinct. 



C. Corolla rotate, slightly zygomorphic, its lobes 



much longer than the tube. Filaments all with 



fertile anthers. Leaves alternate. I. Verbasceae. 



i. Verbascum. 

 CC. Corolla tubular-campanulate, zygomorphic, its 

 lobes shorter than the tube. Posterior fila- 

 ment without anther, the others didynamous. 



Leaves opposite. II. Cheloneae. 



Corolla white, lavender or pink, pubescent or 

 puberulent within, its anterior lobes pro- 

 jecting. Sterile filament slender, filiform, 

 white. 

 Corolla membranous, white or lavender, 

 puberulent or somewhat pubescent within 

 over base of anterior lobes. Sterile fila- 



