Tke Oliio Journal of Science 



Vol. XXI MAY, 1921 No. 7 



THE FIGWORTS OF OHIO.* 



Mary A. Tavlok. 



The following study of the species of the Scrophulariaceee of 

 Ohio is based upon the material in the Ohio State Herbarium 

 and upon personal collections. Although the Figworts have 

 for some time been grouped more or less in agreement with their 

 phylogeny, a special attempt has been made to bring the 

 various groups into their natural sequences, proceeding in each 

 case from the generalized to the more specialized species, 

 according to the principles followed by Prof. John H. Schaffner, 

 under whom the study was made, and to whom indebtedness is 

 gratefully acknowledged. 



The nomenclature follows that of Britton & Brown's 

 Illustrated Flora, second edition. The later important work 

 of F. W. Pennell on the Scrophulariaceas has been carefully 

 considered, and all changes of nomenclature advocated by him 

 have been indicated. It was thought best, however, for the 

 present, in order to facilitate easy reference, to retain the older 

 names for the list as given in the Ohio Catalogue of Vascular 

 Plants. 



The keys are based upon the characters most evident 

 at the time of blooming and apply only to the local flora. 



ScROPHULARiACE.^. Figwort Family. 



Herbs, shrubs, or trees, with opposite or alternate, and 

 usually simple leaves, without stipules, and with perfect, 

 zygomorphic, mostly complete flowers, in clusters or in the 

 axils of the leaves; flowers hypogynous, tetracyclic, pentamerous 

 or the parts reduced; corolla sympetalous, nearly regular, or 

 commonly more or less two-lipped, sometimes spurred or 

 saccate; calyx persistent, with four or five united sepals. 

 Andrecium with five, four, or two fertile stamens, united with 

 the corolla, and alternate with its lobes; if less than five, corn- 



Papers from the Department ot Botany, The Ohio State University, No. 124. 



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