﻿PLANTS KANE AIMS GRCENLANDIC^E. 187 



Var. corymhosa. Densely cespitose, and perhaps the same as the following. Scapes 

 short, naked, almost glabrous as well as the silicles. Flowers apparently white and 

 quite corymbose. Style rather long, stigma emarginate. Perhaps var. «.. Hook, or 

 D. corymhosa, R. Br. in Ross' Yoy., but scarcely to be separated from alpina. 



Bedivelled Reach, 78°. 



Var. micropetala. Leaves larger than the preceding varieties and retaining a lively 

 green color in the dry state, ciliate, but scarcely hispid on the surface. Scape, short, 

 naked, pilose, as well as the calyx. Just blooming ; flowers white, small, thickly corym- 

 bose and almost capitate. Perhaps D. micropetcda, Hook, in Parry's 2d voy. app., p. 

 385. Torr. and Gr. 1, p. 104, but scarcely anything more than another form of I), alpina. 



North Proven, 72°, and Rensselaer Harbor, 79°. 



Another variety in the fruiting state, with scape naked, o\ inches 



high ; silicles corymbose, oval, much larger than in the other varieties and conspicu- 

 ously veined, very hairy, as well as the scape and pedicles. Style short, with a blunt 

 stigma. 



Rensselaer Harbor, 79°, August 27. 



11. D. glacialis, /?, Hook. Fl. Bor. Am. 1, p. 51. Scapes and pedicles pubescent; 

 silicles glabrous, with the habits of var. e. 



Disko and below Bedivelled Reach, 70° and 78°. 



12. D. rupestris, a. R. Br. in Hort. Kew r . 3, p. 91. D. C. Prodr. 1, p. 169. D. hlrta, 

 Engl. Bot. T. 1338. D. hlrta, var. 4, Hook, in Parry's 2d voy. app. p. 386. Pubes- 

 cent; scapes naked, or with a 3-cleft leaf about the middle. 



Rensselaer Harbor, 79°, August 27. 



13. D. nivalis, Willd. D. rupestris, p. Torr. and Gr. 1, p. 105. Leaves rosulate, 

 scarcely linear oblong, but otherwise according with Willdenow's description. Scapes 

 6 — 7 inches high, hirsute, with a small leaf below the middle. Silicles glabrous. 



14. D. lapponica ? Willd. D. C. Prodr. 1, p. 169. R, Br. in Parry's 1st voy. app,, 

 p. 266. D. hlrta, var. 3, in Parry's 2d voy. Torr. and Gr. 1, p. 105. Specimens in 

 the fruiting state; scape naked, almost glabrous, as well as the lanceolate entire leaves. 



Disko Island, 70°. 



15. D. hirta, Linn. Scape and silicles puberulent-pilose. Radical leaves entire, 

 oval-lanceolate ; those of the. scape toothed. Flowers rather large, white, racemose; 

 silicles oval-oblong; style scarcely any. 



Upernavik, 73°. 



16. D. incana, var. confusa, Torr. and Gr. 1, p. 107. D. incana, var. Linn. D. 

 covfusa, Ehrh. in D. C. Prodr. 1, p. 170. 



Fiske Fiord, 64°. 



48 



