Enumeration of Plants of the Rocky Mountain. 



with white folds." — " Many leafy, one-flowered, ( 



on the lower ones I find them often enclosed, or bursting sideways t 

 the itttes;uraents, Siberian specimens are absolutely identical w 

 Rocky Mountain plant." JSnpelm. 



307. Gentiana acuta, var. stricta, Griseb. "Rather common in shady 

 pine woods and moist places on Upper Clear Creek. In shaded places 

 the leaves are pale-green on both surfaces, broad and mostly obtuse; the 

 flowers very pale-blue ; in more open localities the leaves are dark-green 

 above, pale below, narrower, the upper most acute, the flowers darker." 

 "Stems a foot high, leaves 1-lf inches long, 3-7 lines (the lower ones) 

 wide. Flowers about ^ inch long, always 5-parted ; lobes of calyx very 

 unequal, the two longer and broader ones exceeding the tube of the co- 

 rolla; lobes of the corolla acutish or almost obtuse, half as long as the 

 tube. From Druramond's northern specimens in Herb. A. Gr-^y, our form 

 is distinguished by the less acute leaves, and especially by the larger ca- 

 lyx. A specimen from Lower Canada in Herb. A. Gray, probably repre- 

 senting Miehaux's plant, has very acute leaves, smaller flowers, a more 

 regular 4-parted calyx, and very acute lobes of the corolla. The very 

 nearly allied G. Amarella of northern Europe has the corolla much less 

 deeply divided, with quite obtuse lobes." Engelm. r • a i 



309. Gentiana acuta, var. nana, Engelm. in Transact. St. Louis Acad., 

 2, t. 9, fig. 6-9. "In the higher alpine regions, together with G. pros- 

 irata, in masses of SUene acaulis." "A dimmutive form, l|-2 inches 

 high; flowei-s few, smaller; lobes of 4-5-parted corolla obtuse; beard 

 consisting of few distinct fibres." Mffelm. This, from the obtuse lobes 

 ?f the corolla, would appear to confirm Dr. Hooker's view that G. acuta 

 IS a form of G. Amarella, represented in Lapland oy G. hngulata. Kg. 

 Some specimens distributed with No. 309 are the ordinary G. acuta m a 

 depauperate form, with acute lobes to the corolla. 



308. Swertia perennis, L. • ri II flowered form 



310. Frasera speciosa, Doaz). "A very strict and sm a - , 

 ^ith ternate, linea^r-lanceolate, 7-9-nerved cauline leaves and hnear elon- 

 gated lobes of calyx rather exceeding the corolla. F«°f f^^^^^" f J'^ 

 can specimens r No 686^ have larffe and obtuse radical leaves^ i^ lo 

 »ch^ lo„ra inch , Ith) ; evf. the cauline leaves arc b-adlj oval 

 ;"lr the „Vpe,moat being lance-linear; the i't^o'^'^i; STfi.r "ra t 

 «o»- n,„Th larger. Dr. Parry's plan. 72^^2„s i c lial n iS 

 ?;t 'thlr^peci^," ^Lr "d^mi' WeT ohovate-spat^Ute, 

 feather-veined radical leaves. Engelm. -^x^ cJmilis nisi 

 Csin^rr!"su"hlttrnn'i;ih^,t:".trcerel^^^^^^ 



^g^ Thi^ magn^Tctn^^trmrosTneeds tTbe compared with Ledebour's 



^ Jotm. SCI.-SECOXD SEKIE9, VoL. XXXIT, No. IOL-Sekc., Ib6-. 



