342 



basin versus praecipue, ubi laciniis remotis horizontalibus, 

 integris vel dentatis, superne subangulalo-dentata, laciniis 

 brevibus, valde insequalibus. Folia suprema marginibus 

 sinuato-dentatis. Racemus terminalis, elongatus, palmaris 

 ad spithamasum, erectus, multiflorus. Flores pedicellati. 

 Pedicelli graciles, duas tres lineas longi. Calyx e foliolis 

 erectis, oblongis, obtusis, basi paululum dilatatis. Petala 

 linearia, calyce triplo longiora, flexuosa, et ssepe recurvata, 

 apice Integra, nunc bi-tridentata, alba. Stamina : Fila- 

 menta libera, edentula: Antherce lineares, dorso, paulo 

 supra basin, affixae. Pistillum : Germen lineare, superne 

 attenuatum, basi pedicellatum, stipite gracili glaberrimo. 

 Stigma obtusum, integrum, parvum, subsessile. 



In the long spiked raceme and the general structure of the 

 Jlowers, this has a very close affinity with the preceding 

 species ; but there the affinity ceases : for, even in the inflores- 

 cence, when it comes to be minutely examined, a very marked 

 difference will be discovered. In M. nivale, the petals are 

 spoon-shaped, scarcely more than twice the length of the 

 calyx; the anthers are oblong, the germen thick (compara- 

 tively) and almost cylindrical, its pedicel or stipes hairy, and 

 there is only a sort of tubercle, scarcely to be called a foot- 

 stalk, which supports the flower. In M. laciniatum there is 

 a distinct footstalk to the flower ; the petals are linear, thrice 

 as long as the calyx ; the anthers are linear ; the germen is 

 linear-filiform, attenuated, and placed upon a glabrous stipes 

 or pedicel. — I regret that there is rvo fruit upon the specimens 

 found by Mr. Douglas. Judging from the more advanced 

 pistils, it would be much longer than that of M. nivale. 



M. laciniatum has been found by none of our American 

 travellers except Mr. Douglas, and only in the spots here 

 mentioned, at the Columbia River. 



Tab. LXVIII. Fig. 1, Flowering summit of a plant. Fig. 

 2, Stem-leaf: — nat. size. Fig. 3, Flower. Fig. 4, Sta- 

 mens. Fig. 5, Pistil. Fig. 6, The same, in a more 

 advanced state : — magnijied. 



