62 PROCEEDINGS OF THE ACADEMY OF 



CRASSULACEiE. 



IS?. Sedcm snoDANTHUM, Gray, Enuin. PI. Parry. In fruit ; the inflores- 

 cence a dense spike-like thyrsus, oblong. 190. S. stenopetalum, Pursb. 

 191. S. Rhodiola, L. (192. See Borraginacese.) 



SAXIFRAGACEiE. 

 193. Saxifeaga nivalis, var. ? An undeveloped specimen of this, in Parry's 

 collection of 1851, was referred to S. hieracifolia? But the well-developed 

 specimens appear to pass into the large state of the next. The limits between 

 S. nil-oil's, Virginiensis and intecirifolia are not obvious. 194. S. nivalis, L., 

 one form the same as Parry's 169; the other has a scape nine inches high, 

 bearing several peduncled erect flower-clusters in a racemose manner, just as 

 in 193, from which it differs in its shorter and smaller, more-toothed leaves. 

 195. S. ceenua, L. 196. S. conteoversa, Sternb., referred by several authors 

 to S. adsceridenft, L. Alpine region ; before found in America only by Bourgeau, 

 in the Rocky Mountains further north ; known in Northern Asia. 197. S. 

 beonchialis, L. 198. S. debilis, Engelm. n. sp.* "Alpine." 199. S. sek- 

 ptllifolia, Pursh ; but probably only a high alpine, very dwarf and tufted 

 variety of S. Hirculus, L., this being the view taken of it in the Enumeration 

 of Parry's collection of 1861, No. 164. The characters hold out in the present 

 collection. 201. S. Hiectlus, L., in the ordinary form, as different from 19& 

 as possible. " South Park, in wet or swampy places." 200. S. flagellaeis, 

 Willd. (202. See under Primulacea?.) 203. S. Jamesii, Torr., from the origi- 

 nal stations. A most rare and peculiar species. 207. S. punctata, L. (S. 

 (Bstivalis, Fisch.) 204. Hefchera parvifolia, Nutt, the large form, viz.: 

 Parry's 174, with some specimens passing to Parry's 173, the small form. 

 205. Heucheea bracteata,! Seringe (Tiarella? bracteata, Torr.,) the same as 

 Parry's 172, mixed with a large-flowered, apparently new species, H. Hallii.J 

 Rocks, on mountains of medium elevation. 206. Lithophragma parvifolia, 

 Nutt. 208. Mitella fentandea, Hook. ; in fruit. 576. Chrysosplenium 

 alteenifolium, L. 568. Jamesia Americana, Torr. & Gray. (209. See Eu- 

 phorbiaeese.) 



UMBELLIFER^I. 



210. Cymopterus glomeratus, DC. A plant rarely collected, but said to 

 be very common on the plains, along with the next. 211. C. montanus, Nutt. 

 213. C. alpinus, Gray, Enum. PI. Parry, p. 19 (408,) No. 158; with good 

 fruit as well as flowers. 212. Peijcedanum nudicaule, Nutt. ? at least the 

 plant so named in Hayden's collection on the Manvaises Terres of Nebraska ; 

 but the plant is minutely pruinose-pnbescent, not glabrous, nor is the fruit 

 truly that of a Peuredanum, the marginal wings being double, nor from the 

 description can it be the original Smyrnium nudicaule of Pursh. It must re- 



* This was mixed with No. 167 (S. cernua, L.) of Dr. Parry's collection in 1861, but very spa- 

 ringly distributed. It has a granulate root, so called, and the foliage much as in S. Sibirica, but 

 is perfectly glabrous throughout, and with the obconical tube of the calyx wholly adnate to the 

 ovary. As it is manifestly related to S. rivularis (though quite distinct), I suppose it may bo the 

 ' S. Cymbalaria, vel. n. sp.," or the species compared with Sibirica, of Chamisso in Liunrea. 6, p. 

 555, which in the Flora Rossica are doubtfully referred to <S. ritmlaris. In which case I know of 

 no name to take precedence of this proposed by Dr. Engelmann. 



t IIeuchera bracteata (Seringe): glabella, mimitissime pruinoso-glandulosa; thyrso denso 

 spiciformi multiflom; bracteis saepe flores flavido-virescentes subsequantibus ; calyceoblongofere 

 r.'i medium 5-fido, lobis spathulato-oblongis; petalis attenuatis acutis filamentis vix latioribus; 

 Staminibus stylisque dein exsertis. Scape from a span to nearly a foot in height, often foliose- 

 bracteate. Thyrsus commonly mere or less secund. Flowers barely two lines in length. Teeth 

 of the leaves usually setaceously mucronate. 



% IIeuchera Hali.ii (sp. nov.) : hirsutula; thyrso racemiformi suhlaxo 16-30-floro: bracteis pe<li- 

 cellos vix superantibus ; florihus albidis (nunc roseo tinctis?): calyee lato-eampanutato5-lobo. lobis, 

 lato-ovatis; petalis spatlmlatis obtusis exsertis: staminibus stylisque inclusis. Scapes usually a 

 span high. Flowers about three lines long, but the calyx twice the breadth of that of //. bracteata, 

 and very different in shape. Pedicels, when fully developed, sometimes nearly as long as the flower. 

 Leaves as in the preceding species, considerably variable. 



[Mar 





