20 



PROCEEDINGS OF THE ACADEMY OF 



[1898. 



Montia parviflora Howell, form. 



On the Columbia, in moist 

 ground, March 26, 1806. [A 

 very poor and indefinite speci- 

 men]. 



Montia parviflora Howell. 



Rocky camp, April 17, 1806. 

 [Good specimen]. 



Montia Sibirica Howell. 



Columbia River, April 8, 1806. 

 [Fair specimen]. 



Pachystima Myrsinites Raf. 



Rocky Mountains, June 16, 

 1806. 



Pachystima Myrsinites Raf. 

 A small shrub about 4 



feet 



high with a small purple berry, 

 evergreen 



Near the Pacific 

 Ocean, November 16,1805. [Sec- 

 ond specimen]. 



Ceanothus velutinus Dougl. 



An evergreen ; a shrub about 

 8 or 9 feet high. On the Rocky 

 Mountains ; waters of the Koos- 

 kooskee. [Probably not C. 

 sanguineus Pursh, although that 

 species collected by Lewis on the 

 upper Missouri does not appear 

 in collection.] 



Claytonia perfoliata Pursh 

 (not Don.), Fl. 176. On the 

 Rocky Mountains, M. Lewis. ©. 

 April, May, v. v. in Hort. 



Claytonia alsinoides Pursh, Fl. 

 175. On the Columbia River, 

 M. Lewis. ©. May, June, v. 

 v. in Hort. 



Ilex? myrsinites Pursh, Fl. 

 119. On the Rocky Mountains 

 and near the Pacific Ocean, M. 

 Lewis. \ . July, August, v. s. 

 in Herb. Lewis. 7 



Pursh, Fl. 1. c. 



in the eastern parts of Siberia perfectly agreeing with the present species." 

 He evidently had this in mind when writing of C lanceolata. 

 Claytonia linearis Dougl. 



'• On the waters of the Kooskooskee within the Rocky Mountains, June 27, 

 1806," another wholly overlooked by Pursh. 



7 Pursh described it as an Ilex doubtfully, and named Ilex? myrsinites, and 

 quotes it as '' on the Rocky Mountains, and near the Pacific Ocean, Mr. 

 Lewis, July and August. Rafinesque subsequently constructed the genus 

 Pachystima for it. No one has been able to explain the derivation of this 

 name. In the description of Lewis' plant, Pursh writes : " Stigma 4-lobum, 

 crassum. Rafinesque, no doubt, wrote Pachystigma, and the orthography 

 should be corrected accordingly. 



