HITCHCOCK — PLANTS OF AMES, IOWA. 483 



T. PURPURASCENS, L. Spec. 



Low prairie and rocky woods ;. abundant. 

 Ranunculus Cymbalaria, Pursh, Fl, 



Dry hills ; scarce. 



Norlheasl corner of " Big Prairie." 



R. LACUSTRis, Beck & Tracy, ia Eat. Man. 3d ed. 1822.— 7^. multi- 

 fidus-i Pursh, Fl. 



Ponds ; becoming rare. 



When a pond containing- it is drained, the plant persists for a year or two, but tlie 

 finely divided leaves are replaced by lobed or incised forms. 



For remarks on the nomenclature of this species, see Greene, Pittonia, ii. 8; Eat. 

 Man. 5th ed. p. 359, note 3; DC. Syst. i. 270 & 303; Prod. i. 34 & 43. DeCandoUe 

 places R. multifidus, Forsk. Fl. JE.^. 177;. under R. Forskcehlii, among " Ranun- 

 culi non satis noti." 



R. ABORTivus, L. Spec. 



Low woods; common. 

 R. SEPTEXTRiONALis, Poir. Dict. vi. p. 125. 



Moist prairies and meadows; common. 

 R. Peuusylvanieus, L. f. Suppl. 1781. 



^\'et ground; south shore of Cairo lake. 

 R. acrls, L. Spec. 



Waste places. A small patch lias persisted for several years near the northwest 

 corner of the Chemical Laboratory, probably introduced with packing- material, 

 but it has shown no tendency to spread. 



IsoPYhUM BiTERNATUM, (Raf.) Toir. & Gray, Fl. i. p. G60. — £"»€- 

 mio7i bttertiatum^ Raf. Journ. Phys. ii. 1820. 

 Low woods ; common. 

 Caltha palustris, L. Spec. 

 Swamps; frequent. 



Bog near pump-house, and elsewhere. 



Aquilegia Canadensis, L. Spec. 



Rocky woods ; frequent. 

 Delphinium azureum, Michx. Fl. 

 Prairie; not uncommon. 



Quite abundant along railroad west of lower gate. 



Dr. Watson writes that D. Caroliniaiiiim, Walt. Fl. is doubtful. 



ACT-EA spicata, L., var. rubra, Ait. Hort. Ke^-. 

 Rich woods; infrequent. 



Woods near cemetery, Onion creek, Skunk river, and elsewliere. The red ber- 

 ries ripen in early August. 



A. ALBA, (L.) Bigel.iaEat. Man. 4th ed.— ^4. spicata^ L., var. alba, 

 L. Spec. 



Rich woods ; scarce. 



Oni-on creek, growing with the preceding which it mucli resembles, but its white 

 berries ripen later. 



MENISPERMA CEM. 



Menisper^ium Canadense, L. Spec. 



Low woods; frequent, but rare in fruit. 



