1898.] NATURAL SCIENCES OF PHILADELPHIA. 19 



Malvastrum coccineum Gray. Cristaria coccinea Pursh, Fl. 



A small malvaceous plant, 453. On dry prairies and ex- 



probably a species of Malope. tensive plains of Missouri. %. 



Plains of Missouri, July 20, 1806. Aug. v. v., v. s. in Herb. Lewis. 

 [Good specimen]. 



Linum Lewisii Pursh. Pursh. Fl. 210. In the val- 



Perennial Flax. Valleys of leys of the Rocky Mountains and 



the Rocky Mountains, July 9, on the banks of the Missouri, M. 



1806. [Excellent specimen]. Lewis, % . July, v. v. 5 



Claytonia lanceolata Pursh. Pursh, Fl. 175, t. 3. On the 



Headwaters of the Kooskoos- Rocky Mountains, M.Lewis. %. 



kee, June 27, 1806. [Good spec- July, v. s. in Herb. Lewis. 6 

 imen]. 



Lewisia triphylla Rob. 



On the waters of the Koos- 

 kooskee within theRocky Mount- 

 ains, June 27, 1806. {Claytonia 

 triphylla Wats.). [Extends 

 range to Idaho]. 



Lewisia rediviva Pursh. Pursh, Fl. 368. On the banks 



The Indians eat the root of of Clark's River. % . July, v. 

 this. Near Clark's River, July, s. in Herb. Lewis. 

 1, 1806. The calyx consists of 

 6 or 7 leaves, the corolla many 

 petals and stamens .... capsule. 

 [Several flowers only]. 



5 Linum Lewisii Pursh. 



"Perennial flax. Valleys of the Rocky Mountains, July 19, 1806." 

 Pursh I, 210, adds to the above, " and on the Banks of the Missouri, July, 

 Mr. Lewis. Flowers large, blue, a very good perennial, and it might proba- 

 bly become a useful plant if cultivated." 



6 Claytonia perfoliata Don . 



"On the Columbia, moist ground, March 26, 1806." Pursh seems to have 

 been in some confusion with his Claytonias. He quotes " Mr. Lewis, on the 

 Rocky Mountains. April and May." There is another specimen labelled 

 " Rocky Camp, April 17, 1806." 

 Claytonia lanceolata Pursh 



"On the headwaters of the Kooskooskee, June 27. 1806." Pursh says : 

 "On the Rocky Mountains, Mr. Lewis, June." Hooker, noting the flowers, 

 which do not correspond with the present specimens, refers the whole as a 

 synonym of C. Caroliniana, which the flowers on the picture at p. 175 of 

 Pursh's Flora certainly resemble. The flowers are, however, subumbellate, 

 and the species is certainly a good one. 

 Claytonia Siberica L. 



"'Columbia River, April 8, 1806." Pursh, describing his C lanceolata, 

 says, " in the collection of A. B. Lambert, Esq., I found a specimen collected 



