OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 383 



152. Saxifraga heterantha Hook. 1. c. t. 78. A very distinct 

 species, although considered to be a variety of the next in Torrey and 

 Gray's Flora. 



153. Saxifraga punctata L. S. aestivalis Fischer; Torr. & 

 Gray, Fl. &c. 



154. Saxifraga Toljlei Torr. & Gray, Fl. 1, p. 567. A few- 

 specimens. 



155. Saxifraga c^espitosa L. ; Hook. Fl. Bor.-Am. 1. c. 



156. Saxifraga elegans Nutt. in Torr. & Gray, Fl. 1, p. 573. 

 Beautiful and abundant specimens, some of them many times larger 

 than Nuttall's. Judging from these specimens the species may well 

 deserve the name. 



157. Boyklnia occidentals Torr. & Gray, Fl. 1, p. 577 & p. 

 698. 158. Var. elata. * Saxifraga elata Nutt. 1. c. 



159. Heuchera micrantha Dougl. in Bot. Reg. t. 1302 ; Hook. 

 Fl. Bor.-Am. 1. c. 



160. Heuchera cylindrica Dougl. in Hook. 1. c. ; Bot. Reg. 

 t. 1924. 



161. Tolmiea Menziesii Torr. & Gray, Fl. 1, p. 582. An inter- 

 esting plant, rarely collected. 



162. Tellima grandiflora Dougl. in Bot. Reg. t. 1178. 



163. Mitella caulescens Nutt. in Torr. & Gray, Fl. 1, p. 586. 



164. Mitella trifida Graham; Hook. Fl. Bor.-Am. t. 82. 



165. Tiarella trifoliata L. ; Pursh, Fl. 1, p. 313. 



166. Tiarella unifoliata Hook. Fl. Bor.-Am. 1, p. 238, t. 81. 



167. Philadelphus Lewisii Pursh, Fl. 1, p. 329. 



168. Ribes divaricatum Dougl. ; Lindl. Bot. Reg. *t. 1359. In 

 fruit. 



169. Ribes setosum Dougl. in Hook. 1. c. ; a variety of B. lacustre 

 Poir. In fruit. 



170. Ribes sanguineum Pursh, Fl. 1, p. 164. 



171. Ribes bracteosum Dougl. in Hook. 1. c. 



172. Sedum spathulifolium Hook. Fl. Bor.-Am. 1, p. 227. 



173. Till^ea angustifolia Nutt. in Torr. & Gray, Fl. 1, p. 558. 



174. Myriophyllum hippuroides Nutt. in Torr. & Gray, Fl. 1, 

 p. 530. 



175. Epilobium angustifolium L. 



176 - 8. Epilobium tetragonum L., or allied species, in several 

 forms. 



