246 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 54 



that the stems are quadrangular, that the flowers are verticillas- 

 trate around the stems, and that each comes forth from what 

 he calls the seed-pouch, in which particular he likens them to those of 

 hyssop and satureja.' But in other instances besides this he is 

 seen to pay such deference to the distinction of compound and 

 simple foliage as to make use of it taxonomically. Of even this 

 genus Teucrium one simple-leaved species is not only held generi- 

 cally distinct from those with dissected foliage, but is located 

 124 pages away from them, where, by the way, on account of its 

 veronica-like habit and foliage it is associated with several veronicas 

 to constitute a genus Chamcsdrys. In his Third Book, in taking 

 up the natural series of the pomaceous and drupaceous trees,, 

 the compound-leaved genus Sorbus in three species heads the series,, 

 quite as if by virtue of its compound foliage it had been regarded 

 as the highest or most advanced type of its alliance.^ Again, the 

 bulk of the umbellifers, all having pinnated or more dissected 

 foliage. Tragus adopts as a natural alliance, following of course 

 the botanists of remote antiquity; but Bupleurum, vested as 

 it seemed to him in a perfectly simple and even entire foliage, 

 he on that account excludes from the family. The genus 

 Achillea, of the anthemideous composites, quite imitative of the 

 umbellifers as to foliage, and inflorescence, intervenes between, 

 Bupleurum and its compound - leaved affinities.' Other proofs 

 need not be adduced; for we must return to that group of 

 dissected-leaved labiates that close the line of their cognates. 

 They have brought us to number eighty of our one hundred 

 pages. 



With page eighty-one, and thenceforward, one notes an 

 abrupt change, at least respecting the morphology of things; 

 for within the next one hundred it will be rare to meet with 

 a plant square-stemmed and opposite - leaved. The stems 

 are now terete, and the leaves alternate; and in place of 

 aromatic odors there is now everywhere a peculiar pungency 

 of flavor to the herbage. The genera and species are, for 

 a time, those of the family of the crucifers. There occurs at 

 first an unbroken line of seven of these. The student to whom 

 the book is not available will be helped by a list of the names 

 of the species : 



' Stirp. Comm., p. 79. 

 ' Ibid., pp. 1008-1011. 

 J Ibid., pp. 474-483. 



