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PETIOLUS 



Their FIGURE. 



SREVISSIMUS. fPetiverfia alkacea 



F'S- ^- 1 ^ . . 



Very Short, I Garlick fmelling Petiveria. 



p- * J Rumex crifpa. \ Not quite fo Long as 



Short* 1 ^^^^^ Curled Dpck. J the Leaf. 



MED^TOCRIS. rHumulus lepulus. joftheLength of the 



Middling. iHop. J ^^'*^' 



I> O N G U S. r Potamogeton nataus, 1 



Fig. 4- \ f Longer than the Leaf. 



Long. [Pondweed. J 



LONGISSLMUS. C AMnyx^canadenfe. Ic i,- i i. 



Fig. 5. iArfarabecca of Ca- PT'i ?S^''"S''^^''^ 



Very Long. [ nada. J ^^^ ^^^f- 



