HITCHCOCK PLANTS OF AMES, IOWA. 487 



L. intermedium, Gray, PI. Wright, ii. 1853. 

 Dry or sterile soil; common. 



Plant bushy-branched, with nearly entire linear leaves ; petals usually minute or 

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

 examine the seed, or, much 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. 

 CAPPARIDACEjE. 



Poeanisia graveolens, Raf. Am. Jour. Sci. I. i. 1819. 

 Sand orgravel ; abundant. 



CISTACEJE. 



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



Amoen. iii. 1756. 



Drv hills; infrequent. 



Northeast of College beyond Squaw creek ; sand-hills near Enterprise School. 



''Lechea minor." 



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



VIOLACEjE. 



Viola'pedata, L. Spec. 



Prairie and open woods, frequent. 

 V. PiNXATiFiDA, 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.palmata, 

 L., var. cucullata. Gray, Bot. Gaz. 18S6. 

 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. sagit- 

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

 have not seen it within our limits. 



V. PUBESCENS, Ait. Hort. Kew. 

 Low woods; abundant. 



CARTOPHTLLA ce^e. 



Saponaria officinalis, L. Spec. 



Escaped from gardens in many places. 

 S. Vaccaria, L. Spec. 



Waste places ; rare. 



Specimens occasionally appear alon^ the railroad between the College and Ames . 



Silene STELLATA, (L.j Ait. Hort. Kew. — Cucubalus stellcdus, L. 

 Spec. 



Upland woods ; common. 

 S. NIVEA, DC. Prod. i. 



Low woods; infrequent. 



DeCandolle cites "Muhlenb. Catal.." but does not adopt his nam*,— S. alba. 



