HITCHCOCK — PLANTS OF AMES, IOWA. 4S7 



L. rNTER:\iEDiUM, Gray, PI. Wright, ii. 18o3, 

 Dry or sterile soil ; common. 



Plant bushy-branclied. with nearly entire linear leaves ; petals usually minute or 

 absent; cotyledons incumbent. To determine this last and decisive distinction, 

 examine the seed, or, mucli better, a cross-section, with a good hand-lens or com- 

 pound microscope. 



Raphanus sativus, L. Spec. 



Often persists for a year or two in neglected gardens. 

 CA PPA RIDA CE^E. 



PoLANisiA gravp:olf.ns, Raf. Am. Jour. Sci. I. i. 1819. 

 Siind or gnivel ; abundant. 



CI STAGE. E. 



Helianthemum majus, ( L. ) B.S.P. Qa,t. — Lechea major, L. 

 Amcen. iii. 1756. 



Dry liills ; infrequent. 



Northeast of College beyond Squaw creek; fandliills near Enterprise School. 



"Lechea minor." 



"Ames-Bessey, 1876." Specimen in I. A. C herbarium. 



J'JOLACE.E. 



Viola'pedata, L. Spec. 



Prairie and open woods , frequent. 

 V. PINNATIKIDA, Don, Mill. Diet. i. 1831. 



Prairie; not uncommon. 

 V. PALMATA, L. Spec. 



Low ground ; not uncommon. 

 Var. OBLiQUA, (Hill)— V. obliqua, Hort. Kew. 1768. — V-x^almata, 

 L., var. cticullata. Gray, Bot. Gaz. 1SS6. 

 Low ground ; common. 

 The leaves vary from reniform to narrowly hastate, and from glabrous to downy- 

 pubescent. All the Ames specimens in the I. A. C. herbarium labelled V. sag'tt- 

 taia. Ait., belong here. The latter is frequent in the'eastern part of the State; but I 

 have not seen it withm our limits, 



V. PUBESCENS, Ait. Hort. Kew. 

 Low woods; abundant. 



CARrOPHTLLA CE.E. 



Saponaria officinalis, L. Spec. 



Escaped from gardens in inany places. 

 S. Vaccaria, L. Spec. 



Waste places; rare. 



Specimens occasionally appear along the railroad between the College and Ames. 



SiLENE .STEi;LATA, (L.) Ait. Hort. Kew. — Cueuhalus stellatus, L. 

 Spec. 

 Upland woods; common. 

 S. NIVEA, DC. Prod. 1. 



Low woods ; infrequent. 



DeCandolle cites "Muhlenb. Catal.," but does not adopt his nam-.— 5'. a/ba. 



