to the Rocky Mountains. 221 



278. C. longifloka, glaberrima ; foliis tenuissime pinua- 

 tifidis 5 floribus terminalibus, laxe paniculato-corymbosis, pe- 

 clunculatis ; tubo corolla? longissimo, tubaeformis, laciniis 

 orbiculatis, tenuissime acuminatis ; stylo exserto. 



Desc. Stan much branched, paniculate above, very smooth. Leaves 

 scattered, pinnatifid ; the lacinias almost filiform, long, distant, cuspidate 

 at the apex. Flowers in loose panicles at the extremity of the branches. 

 Peduncles half an inch or more in length. Calyx subcampauulate-pri3- 

 matic, 5-cleft; the segments cuspidate. Corolla hypocrateriform ; tube 

 an inch and a half long, very slender, slightly dilated upwards ; border 

 flat, 5-lobed ; the lobes roundish, with a short abrupt acuminatum. Stamens 

 5, unequal, exserted a little from the tube of the corolla ; anthers oblong. 

 Germen 3-celled ; style filiform, smooth, exserted 2-4 lines; stigma trifid. 



Hab. On tbe Canadian. 



Obs. A remarkable species, having much the appearance 

 of a Phlox. It differs from all the others of the genus in its 

 hypocrateriform corolla. 



279. C. ? pungens, foliis sessilibus, digitatis (quasi fasci- 

 culatis), laciniis subulatis pungentibus ; corolla? laciniis obo- 

 vatis, obtusis. 



Desc. Stem erect, simple, or somewhat branched, rigid, nearly smooth. 

 Leaves alternate, crowded, somewhat imbricate, 5-6 parted nearly to the 

 base ; segments erect, and a little spreading, acicular, rigid and pungent. 

 Flowers axillary in the upper part of the stem, solitary, sessile. Calyx 

 prismatic, pentagonal, smooth, 5-cleft, with subulate spinous teeth. Corolla 

 hypocrateriform ; tube long, slender ; border 5-cleft ; segments obovate, 

 entire. Stamens 5, included. Capsule oblong, acute, 3-celled, 3-valved ; 

 cells many-seeded. Seeds angular, naked. 

 Hab. Valley of the Loup Fork . ? 



Obs. This singular plant is referred to Cantua with great 

 hesitation. Its habit is altogether different from any species- 

 of that genus with which I am acquainted. 



