CRUC1FEILE. X. ARABIS. 



165 



44 A. TURRI'TA (Lin. spec. 930.) leaves stem- clasping, 

 rather acute, somewhat toothed, pubescent ; pedicels length of 

 calyx ; pods all on one side, recurved. $ . H. Native of Spain, 

 France, Switzerland, Italy, Sicily, and Transylvania, on mountains 

 in hedges and coppices, also in Britain, on old walls, but rare, par- 

 ticularly on the college walls of Oxford and Cambridge, and in 

 Scotland on the castle of Cliesh, Kinrosshire. Jacq. fl. austr. 

 t. 11. Smith, engl. bot. 178. Turritis ochroleuca. Lam. fl. fr. 

 2. p. 490. A. umbrosa, Crantz. austr. p. 39. Flowers crowded, 

 cream-coloured. Petals oblong-linear. Pods 3 inches long, 

 all on one side, curved downwards as they ripen. Leaves 

 acuminated. 



Var, ft, longisiliqua (D. C. syst. 2. p. 235.) A. umbrosa, 

 Steven in litt. Native of Tauria. Pods 4 or 5 inches long. 



Var. y, pendula (Lach. obs. p. 10. but not of Lin.) Poir. suppl. 

 2. p. 410. exclusive of the synonyms. Turritis pendula, Desf. 

 cat. ed. 2. p. 152. Pods much curved when ripe. 



Tower Mustard or Tower Wall-Cress. Fl. May, June. Britain. 

 PI. 1^ foot. 



45 A. PE'NDULA (Lin. spec. 930.) leaves clasping the stem, 

 toothed, oblong, dilated, cordate at the base ; stem furrowed, 

 hispid ; pedicels 3 times longer than the calyx ; pods drooping. 

 O- H. Native of Siberia near the river Lena. Jacq. hort. 

 vind. 3. p. 20. t. 34. Petals white, oblong- linear. Pods loose, 

 pendulous. 



Var. fi, Americana. A. pendula, Nutt. gen. amer. 2. p. 70. 

 Native of North America on the borders of the river Missouri 

 near Fort Mandan. 



Pendulous-podded Wall-Cress. Fl. My. Ju. Clt. 1752. PI. 1 ft. 



46 A. PATRINIA'NA (D. C. syst. 2. p. 236.) leaves oblong, acu- 

 minated, somewhat serrated, cordate, stem-clasping, villous ; 

 stem round, hispid ; pedicels 3 times longer than the calyx ; 

 pods pendulous. $ . H. Native of Siberia at Ufa near Cha- 

 manaikha, Deless. icon. sel. 2. t. 27. A. pendula, Patr. herb. 

 Perhaps this is only a var. of A. pendula. Seed girded by a 

 narrow wing. Flowers white. 



Patrin's Wall-Cress. Fl. June, July. Clt. 1827. PI. 2 feet. 



47 A. OXY'OTA (D. C. syst. 2. p. 236.) leaves scabrous, with 

 branched hairs, cauline ones acutely-sagittate, oblong-linear, a 

 little toothed ; stem hispid with simple hairs ; pedicels 3 times 

 longer than the calyx. $ . H. Native of Eastern Siberia. 

 Allied to the two preceding plants. Petals oblong, white. 



Sharp-eared-lenved, Wall-Cress. Fl. June, July. PI. 1 foot. 



2. Cuneipetala. Cauline leaves sessile. Petals oblong or 

 linear-cuneated. 



48 A. HELIO'PHILA (D. C. syst. 2. p. 237.) leaves sessile, 

 linear, entire, hoary with pressed, short, 2-parted hairs; pedicels 

 shorter than the calyx; pods erect. 0. ? H. Native of the 

 East Indies, Java, &c. Heliophila incana, Burm. fl. ind. 140. t. 

 46. f. 2. Heliophila canescens, Willd. spec. 3. p. 528. Petals 

 linear, very narrow, hardly longer than the calyx. 



Sun-loving Wall-Cress. PI. 1 foot. 



49 A. L,EVIGA V TA (D. C. syst. 2. p. 237.) radical leaves ob- 

 ovate, stalked, sinuately-toothed, cauline ones linear, sessile, 

 quite entire; pods erect; seeds margined. $ .? H. Native 

 of North America on rocks from Pennsylvania to Virginia, but 

 rare ; and about Lake Huron. Turritis laevigata, Willd. spec. 

 3. p. 513. Flowers small, few, white, in corymbose-racemes. 

 Plant smooth, glaucous. 



Smooth Wall-Cress. Fl. May, June. Clt. 1821. PI. 1 foot. 



50 A. CANADE'NSIS (Lin. spec. 929.) cauline leaves sessile, 

 oblong-lanceolate, acuminated, remotely serrate-toothed ; pedi- 

 cels 3 times longer than the calyx ; pods linear, pendulous, some- 

 what falcate ; seeds with a very broad wing. %.. H. Native of 

 North America in shady rocky situations, from Canada to Vir- 



ginia. Pluk. aim. 136. t. 86. f. 8. Petals white, linear, longer 

 than the calyx. 



Var. a, mollis (Raf. amer. monthl. mag. 2. p. 43. but not of 

 Steven.) plant covered with soft down. 



Var. fi,falcata (Mich. fl. bor. amer. 2. p. 31.) Pods falcate. 



Canadian Wall-Cress. Fl. May, July. Clt. 1768. PI. 2 feet. 



51 A. PU'MILA (Wulf. in Jacq. coll. 2. p. 59. fl. aust. 3. t. 

 281.) leaves smooth, almost entire, radical ones obovate, stem 

 ones ovate or oblong ; racemes nodding ; pedicels twice as long 

 as calyx; pods erect, 3 times longer than the pedicels. 1. H. 

 Native of the Alps from Provence to Transylvania on rocks and 

 among stones. A. bellidifolia, Crantz. austr. 42. t. 2. f. 3. but 

 not of Jacq. A. ciliaris, Willd. enum. 2. p. 684. A. sc&bra, All. 

 ped. 974. A. nutans, Mcench. meth. 258. Ait. hort. kew. ed. 2. 

 vol. 4. p. 105. Sims, bot. mag. t. 2219. Turritis alpina, Braun. 

 fl. sal. 2. t. 2. f. 1. Petals oblong-cuneated, white. A tufted 

 plant. 



Dmarf Wall Cress. Fl. June, July. Clt. 1658. PI. { foot. 



52 A. BELLIDIFOLIA (Jacq. obs. 1. p. 22. t. 12. fl. aust. 3. t. 

 280.) leaves smooth, almost entire, radical ones obovate, stem 

 ones ovate ; racemes erect ; pedicels 3 times longer than the 

 calyx ; pods 4 times longer than their pedicels. 3/ . H. Native 

 of the Eastern Pyrenees in stony grassy places, and near foun- 

 tains and rivulets on the Carpathian mountains. Turritis belli- 

 difolia, All. ped. no. 980. t. 40. f. 1. Petals oblong-cuneated, 

 double the length of calyx. Pods linear. A tufted plant, with 

 white flowers. 



Var. j3, Turritis alpma, Jacq. in Murr. syst. veg. 502. Willd. 

 spec. 3. p. 545. 



Daisy-leaved Wall-Cress. Fl. Ju. Aug. Clt. 1773. PI. ^ to |ft. 



53 A. C.ERU LEA (Wulf. in Jacq. coll. 2. p. 56.) leaves smooth, 

 almost entire, radical ones oblong-obovate, cauline ones few, 

 oblong ; racemes nodding ; pedicels length of calyx ; pods erect. 

 I/ . H. Native of the Alps from Provence to Carinthia and 

 Salzburgh, near the limits of perpetual snow. Sturn. deutsch. 

 fl. with a figure. Turritis caerulea, All. ped. no. 981. t. 40. f. 2. 

 Petals oblong, pale or dirty blue. A tufted plant. 



.Bfoe-flowered Wall-Cress. Fl. Jul. Aug. Clt. 1793. PI. | foot. 



3. Obovatipetala. Cauline leaves sessile or wanting. Limb 

 of petals spreading, obovate. 



54 A. STELLULA'TA (Bertol. in Desv. journ. bot. 1813. vol. 2. 

 p. 76. amocn. ital. p. 101.) leaves scabrous with stellate-hairs, 

 radical ones obovate, cauline ones oblong, very few ; pods twice 

 the length of their pedicels, containing 16 or 20 seeds. If.. H. 

 Native on the summits of the Appenines. A. pumila, Pollin. 

 Very like A. petrae^a var. Crantziana in habit, but it is evidently 

 different, from the seeds having a broad wing. A pretty little 

 plant, with white flowers. 



ASWry-haired Wall-Cress. Fl. June, July. PI. ^ foot. 



55 A. ? VOCHINE'NSIS (Spreng. pug. 1. p. 46. no. 80.) leaves 

 ciliated, with 2-parted appressed hairs, radical ones obovate, 

 cauline ones few, oblong ; pods 4 or 6-seeded, length of their 

 pedicels. Tf. . H. Native of the Alps of Carniola about Vochin, 

 also of Carinthia on Mount Selenitz and Mount Cren. Draba 

 mollis, Scop. earn. no. 789. t. 34. Subularia alpina, Willd. spec. 

 3. p. 424. A. serpyllifolia, Hoppe. Stem prostrate and creep- 

 ing. Petals white, obovate, narrowed at the base, twice or thrice 

 the length of the calyx. 



Vochin Wall-Cress. Fl. July. Clt. 1826. PI. | foot. 



56 A. COLLI'NA (Tenore. prod. fl. neap. 39. app. hort. neap. 

 1815. p. 59.) leaves oblong, sinuately-toothed, hoary with stel- 

 late hairs ; radical leaves stalked, cauline ones sessile ; pods 8 

 times longer than their pedicels. If. . H. Native on arid hills 

 about Naples. Petals white, obovate, spreading, double the 

 length of the calyx. Habit of A. alpina. 



