CRUGTFEILE. XXXIII. DRABA. 



183 



naked, smooth ; leaves linear, somewhat keeled, ciliated ? acute, 

 loosely rosulate ; petals twice the length of the calyx and sta- 

 mens ; pods oblong-elliptical, smooth ; style very short. If. . H. 

 Native of Caucasus, on Mount Schadagh, among stones near the 

 limits of snow. Very like D. bruniatfolia. 



Heath-leaved Whitlow-Grass. Fl. June. Clt. 1823. PI. \ 

 foot. 



10 D. PILOSA (Adams, from Fisch. in litt. D. C. syst. 2. p. 

 337.) scape naked, smooth, 2 or 3-flowered ; leaves linear, 

 keeled, loosely rosulate, ciliated ; calyx pilose ; petals twice the 

 length of the calyx and stamens ; pods roundish-ovate, smooth. 

 "H . H. Native of the north of Siberia, at the river Lena. 



/Wose-calyxed Whitlow-Grass. Fl. May, June. Clt. 1825. 

 PI. i foot. 



11 D. A'SPERA (Adams, from Fisch. in litt. D. C. syst. 2. 

 p. 337.) scapes naked, smooth ; leaves linear, keeled, stiff, cili- 

 ated ; calyx smooth ; stamens hardly the length of the calyx ; 

 pods oblong ; style very short. If. . H. Native of the most 

 northern part of Siberia, at the mouth of the river Lena. Habit 

 of D. aizoidcs. 



Rough-leaved Whitlow-Grass. Fl. May, June. PI. 2 inches. 



12 D. SAUTE'RI (Hopp. ex. Spreng. syst. app. 240.) leaves 

 spatulate, stiff, ciliated ; scape smooth ; stamens shorter than the 

 corolla ; silicle ovate, smooth, crowned by the short style. I/ .H. 

 Native of Switzerland on the Alps. 



Sauter's Whitlow-Grass. PI. J foot. 



SECT. II. CHRYSODRA'BA (from xpixroe, c hrysos, gold, and 

 Drdba ; that is to say golden Drabas ; flowers yellow.) D. C. syst. 

 2. p. 337. prod. 1. p. 167. Small perennial tufted plants with 

 the leaves neither stiff nor keeled. Flowers yellow, with scarcely 

 any, or very short styles. Silicles oval-oblong. 



13 D. A'LGIDA (Adams, from Fisch. in litt. D. C. syst. 2. p. 

 337.) scapes naked, pilose ; leaves oblong, flat, and are pilose 

 with simple hairs, as well as calyxes ; pods oblong ; style very 

 short; stigma 2-lobed. y.. H. Native of the north of Siberia; 

 on the shores of the Icy-Sea towards the mouth of the river 

 Lena, and the Bay of St. Laurence. Habit of Draba alpina, but 

 from it, as well as all the rest of the Chrysodrabas, it differs 

 in the hairs being simple, not branched ; it is also sometimes 

 smooth. 



Var. /3, subcarinata (D. C. syst. 1. c.) middle nerve of leaves 

 rather prominent on the under surface. 



Var. y, brachycarpa (D. C. 1. c.) pods ovate, shorter. 

 Algid Whitlow-Grass. PL i foot. 



14 D. ALpfNA(Lin. spec. 896. exclusive of the synonyms.) scapes 

 naked, pubescent ; leaves lanceolate, flat, pilose with branched 

 hairs ; pods oblong ; style very short. I/ . H. Native of Lap- 

 land, on dry rocks in the Alps, and of Norway in the Alps about 

 Dover; also of North-America, in the Bay of St. Laurence, and 

 the island of St. Laurence. Wahl. fl. lapp. p. 173. no. 316. 

 t. 11. f. 4. (Eder. fl. dan. t. 56. Flowers golden yellow, a 

 little smaller than those of Draba aizoldes. The middle nerve of 

 the leaf in the American plant runs even to its apex, with one 

 tooth on each side, which is not the case in the European plant. 

 Perhaps a distinct species. 



Alpine Whitlow-Grass. Fl. April, May. Clt. 1816. PI. 3 inch. 



15 D. GLACIA'LIS (Adams, mem. soc. nat. mosc. 5. p. 106.) 

 scapes naked, covered with starry pubescence ; leaves linear- 

 lanceolate, entire, hispid with stellate hairs ; pods ovate, smooth ; 

 stigma almost sessile. TJ. . H. Native of Siberia, at the shore 

 of the Icy Sea, at the promontory called Bykofskoy-mys, and at 

 the river Lena, not far from a place called Shigansk. Differing 

 from D. a'lgida, to which it is nearly allied, by the leaves being 

 narrower, pods ovate, and the calyx more villous. 



Icy Whitlow-Grass. Fl. May, June. Clt. 1825. PI. 2 inches. 



16 D. RE'PENS (Bieb. fl. taur. 2. p. 93. exclusive of the 

 synonyms ofGmelin. suppl. p. 427.) scapes naked, smoothish ; 

 leaves lanceolate, entire, pilose with 2-parted appressed hairs ; 

 runners creeping ; pods oblong, smooth. y. . H. Native of 

 Iberia in meadows, between the towns Kasbeck and Koby, also 

 on the Caucasian Alps. Petals obovate, blunt, twice the length 

 of the smooth calyx. 



Creeping Whitlow-Grass. Fl. May, Ju. Clt. 1825. PL J foot. 



17 D. GMELI'NI (Adams in mem. soc. nat. mosq. 5. p. 107.) 

 scapes naked, somewhat hispid ; leaves lanceolate, hispid, pilose 

 with stellate hairs ; runners not creeping ; pods oblong, smooth. 

 If. . H. Native of Siberia, from the river Yenessei to the eastern 

 sea even to the banks of the river Lena about Shigansk ; also 

 on the Ural mountains. Gmel. sib. 3. p. 255. t. 56. This spe- 

 cies is very like D. repens, and is sometimes confused with it. 



Var. ft, porrecta (Trin.) runners very long, but not rooting. 



Var. y, ceespilosa (Willd. herb.) runners shorter, but the 

 scapes are longer. 



Gmelin's Whitlow-Grass. Fl. May, June. Clt. 1823. PI. 

 ^ foot. 



18 D. TRIDENTA'TA (D. C. syst. 2. p. 339.) scapes naked, 

 smooth ; leaves obovate, narrowed at the base into the petiole, 

 3-toothed at the apex, hairy; pods oblong, smooth, y.. H. 

 Native of the Alps of Caucasus. D. hispida, Bieb. fl. taur. 2. 

 p. 94. exclusive of the synonyms, suppl. p. 428. About the 

 height of D. repens, but it is destitute of runners. Differing 

 from D. hispida by its larger stature and flowers, and longer pods. 



Three-toothed-leaved Whitlow-Grass. PI. -| foot. 



19 D. HISPIDA (Willd. spec. 3. p. 426.) scapes naked; leaves 

 obovate, somewhat toothed, hispid from bifid hairs ; pods oval. 

 %. H. Native of Cappadocia. Petals yellow, twice the length 

 of the calyx. Style very short. Plant with the habit of Erd- 

 phila verna. 



Hispid Whitlow-Grass. PI. 2 inches. 



20 D. INCO'MPTA (Stev. in mem. soc. mosc. 3. p. 268.) scapes 

 velvety, 3-times longer than the leaves ; leaves oblong, greyish- 

 velvety from starry-hairs ; pedicels shorter than the flowers. 

 I/ . H. Native of the Eastern Caucasus on rocks on Mount Ty- 

 fendagh. Habit of Aretia Vitaliana. Flowers yellow. Petals 

 twice the length of the velvety calyx. Deless. icon. sel. 2. t. 44. 



Undecked Whitlow-Grass. Fl.June. Clt. 1820. PI. 2 inches. 



21 D. MOLLi'ssiMA(Stev.inmem. 

 soc. nat. mosc. 3. p. 268.) scapes 

 smooth, naked, much longer than 

 the leaves ; leaves imbricate, oblong, 

 hoary-velvety with stellate hairs ; 

 pedicels longer than the flowers. 

 If. . H. Native of Eastern Caucasus 

 on Alp. Schadagh. Deless. icon. sel. 

 2. t. 45. Flowers yellow, about the 

 size of those of D. aizoides. (f. 49.) 



Softest Whitlow-Grass. Fl. Ju. 

 PI. 1 to 2 inches. 



22 D. JORULLE'NSIS (H. B. et 

 Kth. nov. spec. amer. 5. p. 78.) 

 stem leafy, villous ; radical leaves 

 oblong-elliptical, stalked, some- 

 what velvety ; pods elliptical, pu- 

 bescent. ^.F. Native of Mexico 



on the burning mount Jorullo. Petals obovate, hardly longer 

 than the calyx. 



Jorullo Whitlow-Grass. PI. -j to % foot. 



23 D. TOLUCCE'NSIS (H. B. et Kth. nov. spec. amer. 5. p. 

 78.) stems leafy, smoothish ; radical leaves oblong, somewhat 

 hoary ; pods elliptical, smooth, y. . F. Native of colder parts 

 of Mexico, particularly near the town of Tolucco at the height 



FIG. 49. 



