58 PROCEEDINGS OF THE ACADEJfV OF 



regarded by Regel, i.e., D. muricella, Vahl., with pubescent silicles, and a 

 smooth form of D. nemoralis. 42. D. nehoralis, L., two pubescent forms. 

 44. D. aurea, Vahl. 45. D. streptocarpa, Gray, Euuni. PI. Parry, p. 13, No. 

 96, with some reduced, high alpine forms, in which the silicle does not always 

 twist. 43. Smelowskia calycina, C. A. Meyer, (Hutchinsia, Desv.) High alpine. 

 46. Thlaspi cochleariforme, DC. Common at all heights. 47. Physaria didy- 

 mocarpa, Gray, var. ? The same as Parry's 101, but more hoary, and with a 

 longer slender style. Mature fruit and seeds being still wanting, it yet re- 

 mains as doubtful as before whether this is a form of Hooker's species. 48. 

 Vesicaria Ludoviciana, DC. 49. Vesicaria jiontana, n.sp.,* from the middle 

 mountains ; also collected last year at Eureka by Mr. Howard, but without 

 fruit. 50. Stanleya jntegrifolia, James. 51. Thelypodium (Pachypodium, 

 Kutt.) isTEGRiFOLic.M, Torr. and Gray. 



CAPPARIDACEJE. 



52. Cleome integrifolia, Torr. & Gray. 53. Cleomella tenuifolia, Torr. 



VIOLACEiE. 

 54. Viola biflora, L. 55. V. Nuttallii, Pursh. 56. V. Muhlenbergii, 

 Tar. pubetcens, same as 108 of Parry. 57. Ionidium lineare, Torr. 



PARNASSIE^I. 

 575. Parnassia paryiflora, DC, Hook. Two forms of the species, into 

 which P. Kotzebuei, Cham., probably passes. It is No. 427 of Dr. Parry. 

 57S. P. fimbriata, Banks ; a small form of the species ; the flowers only half 

 the size of those of the ordinary state. It is No. 428 of Parry's separate col- 

 lection. 



HYPERICACEiE. 



58. Hypericum Scouleri, Hook., which apparently is also H. formosum, HBK. 



ELATINACE^E. 



59. Elatine Americana, Arn. On the Platte River. (60. See Pritnulaceae.) 



CARYOPHYLLACEiE. 

 61. Silene Scouleri, Hook; 62. S. Drummo.vdii, Hook. 63. Lychnis apetala, 

 L. vars., same, as 132 and 133 of Parry. 64. Silexe Mexziesii, Hook. 65. 



SlLENE ACAULlS, L. 



M. Paronychia pulvixata, n. sp.,f the same as Parry's 297. of which he 

 also has collected very fine specimens this year. 67. P. Jamesii, Torr. and 

 Gray. 68. Sagina LiXHiBi, Presl. 69. Arenaria (Alsise) Rossti, R. Br., the 

 taller stems 3-5-flowered, pretty clearly a mere arctic-alpine form of A. 



*Vesicaria Montana (sp. nor.): argentoo-inraua : caulibus e radice perenui dift'usis folio-is: 

 foliis spathulatis, radicalibus subovatis potiolatis nunc 1-2-dentatis; racemo fructifero elongate; 

 silicula ovali seu ellipsoidea cano-pobescente stylo giacili longiore pedicel!" patents sursum cur- 

 vato paullo breviore. Habit of I". Ludoviciana, argyi sea, and argenteo; well-mai ked by the oval 

 or oblong silicle (which is. in some specimens', 3 lines in length, but of scarcely half that breadth, 

 while in others it is shorter and broader, barely oval in outline,) hoary, with a fine stellular pu- 

 bescence, one-third longer than the style, commonly one-third or one-half longer than the pedicel, 

 nearly terete; the valves of the same rather firm texture as those of Y.LvdoYiciana, more convex 

 than those of V. alpina. Seeds four or six in each cell, wingless. retain spatulate, light yellow. 

 F.l tnients filiform. 



t Paronychia pulyinata (sp. nov. ): depressa, e caudice lignescente pulrinatocfcspitosa, fere gla- 

 bra; stipulis srgenteis ovatis integris muticis folia oblonga obtusa margine ciliolato-scabra snb- 

 asquantibus emu iis ramus breves usque ad florem termiualem sessilem dense veLientibus; calycis 

 segmentis ovalibus late scariosis sub apice cucullato aristulatis, aristula cucullum vix superante. 

 Iu the hisrh alpine region, quite comm >n. Forming dense, cushion-hke tufts, apparently like 

 those of Silene aoudis, denser than those of P. sessiliflora, Nutt. Stipules 2 line* long, broadly 

 ovate and obtuse, or the uppermost somewhat taper-pointed or acute, but muticous. Leaves -'. 

 or 3 lines long, about a line wide, bright green, flat, thick, very obtuse and muticous, nerveles-i. 

 Flower solitary and immersed a inmg the leaves. Stamiii >dia 5, similar l> the fertile filaments. 

 Ovary glabrous, tapering into the lather short style. 



[Mar. 



