CRUCIFEILE. XXXVII. HUTCHINSIA. XXXVIII. TEESDALIA. XXXIX. PLATYSPERMUM. XL. IBERIS. 



193 



parted, and are as well as erect stems pubescent ; calyx per- 

 manent ; pods oblong, narrowed at both ends, and pointed by 

 the style. If.. H. Native of Siberia on the Altaian mountains, 

 and of North America. Hook, fl. bor. amer. t. 17. B. Lepi- 

 dium calyclnum, Steph. in Willd. spec. 3. p. 433. Petals white, 

 oblong, twice the length of the calyx, rarely deciduous. 



Calycine Hutchinsia. Fl. May, June. Clt. 1819. PI. 2 or 3 in. 



10 H. ALPI NA (B. Br. in hort. kew. ed. 2. vol. 4. p. 82.) 

 leaves pinnate-parted, smooth ; petals twice the length of deci- 

 duous calyx ; pods acute at both ends ; style very short, ex- 

 serted. if. H. Native of the Pyrenees, Apennines, Mount 

 Baldo, Carpathian mountains, &c. on rather moist rocks. Le- 

 pidium alpinum, Lin. amoen. 4. p. 321. Jacq. aust. 2. t. 137. 

 Schrank, fl. mon. 3. t. 216. Lepidium Halleri, Crantz. austr. 1. 

 p. 8. t. 1. f. 3. Draba nasturtiolum, Scop. earn. ed. 2. no. 791. 

 Draba alpina, Baumg. fl. transylv. 2. p. 232. but not of Lin. 

 Seeds 2 in each cell. Flowers white. 



Alpine Hutchinsia. Fl. April, Ju. Clt. 1775. PI. 2 or 3 in. 



11 H. PETIUEA (R. Br. in hort. kew. ed. 2. vol. 4. p. 82.) 

 leaves pinnate parted, smooth ; petals hardly longer than the 

 calyx ; pods 4-seeded, blunt at both ends ; stigma sessile. 

 Q. $ . H. Native of rocky places from Spain to Sweden, and 

 from England to Laconia and Arcadia, also in the south of 

 Tauria. In England on limestone rocks and walls, particularly 

 on the rocks about Goram's chair, and on St. Vincent's Rocks, near 

 Bristol ; at Uphill, Somersetshire ; on a limestone wall 2 miles 

 from Pembroke, and in various other parts of Wales, and of the 

 mountainous limestone districts of Yorkshire. Hook, fl. lond. t. 

 31. Lepidium petraeum, Lin. spec. 899. Jacq. austr. 2; 1. 131. 

 Smith, engl. bot. t. 111. Bois. fl. eur. t. 440. f. 1. Lepidium 

 Linnsei. Crantz. austr. 9. t. 2. f. 4. & 5. Lepidium pusillum. 

 Var. /3. Lam. fl. fr. 3. p. 468. Stems erect or tufted, or 

 somewhat decumbent. Flowers white very minute. 



Rock Hutchinsia. Fl. Mar. Apr. Engl. PL 2 or 3 inches. 



12 H. BREVICAU'LIS (Spreng. syst. 2. p. 863.) leaves lyrately- 

 pinnate ; leaflets obovate ; petals larger than the deciduous 

 calyx ; silicles obovate-oblong, obtuse, destitute of the style. 

 11. H. Native of the Alps of Carinthia. Lepidium brevicaule, 

 Hoppe. Flowers white ? 



Short-stemmed Hutchinsia. PL ^ foot. 



Cult. These pretty little plants are well adapted for rock- 

 work or to be grown in small pots (well drained with potsherds) 

 and placed among other alpine plants. The annual and biennial 

 species should all be sown on rock- work or in a dry situation in 

 autumn or early in spring, or they may be allowed to scatter 

 themselves, which is the best mode. The perennial kinds, which 

 are recommended to be grown in pots, or on rock-work, do best 

 in a mixture of loam, sand, and peat. They may be either in- 

 creased by dividing the plants at the root or by seeds, which 

 ripen in plenty, or cuttings will root freely, planted under a 

 hand-glass. 



XXXVIII. TEESDA'LIA (named after Robert Teesdale, 

 author of a catalogue of plants growing about Castle Howard, 

 published in the Linnsean Transactions, vol. 2.) R. Br. in hort. 

 kew. ed. 2. vol. 4. p. 83. Smith in Lin. soc. trans. II. p. 283. 

 D. C. syst. 2. p. 391. prod. 1. p. 178. Guepmia, Bast, suppl. 35. 



LIN. SYST. Tetradynamia, Siliculosa. Silicle oval, emarginate 

 at the top, with navicular valves. Cells 2-seeded. Stamens 

 each furnished with a scale on the inside at the base. Small, 

 annual, smooth herbs with rosulate, expanded, stalked, pinnate- 

 lobed radical leaves, and with many leafless simple scapes rising 

 from the neck. Racemes terminal, at time of flowering corym- 

 bose, afterwards elongated ; pedicels filiform, bractless, spread- 

 ing. Flowers small, white. 



1 T. IBERIS (D. C. syst. 2. p. 392.) petals unequal, outer 



VOL. I. PART III. 



ones largest. Q. H. Native of dry, barren, gravelly fields in 

 many parts of Europe, especially in the Morea, France, Ger- 

 many, Denmark, and Sweden. In England about London, 

 Norwich, and Bury, in Worcestershire and Cumberland, near 

 Sheffield. In corn-fields near Easinwold, Yorkshire, in several 

 parts of the Lowlands of Scotland. Abundant in Anglesea. 

 Teesdalia nudicaulis, R. Br. 1. c. Iberis nudicaulis, Lin. spec. 

 907. Oed. fl. dan. 323. Smith, engl. bot. t. 327. Sturn. fl. 

 germ. icon. Schkuhr. handb. 2. no. 1774. t. 179. Iberis bur- 

 sifolia, Berg. phyt. icon. Thlaspi nudicaulis, D. C. fl. fr. ed. 

 3. vol. 4. p. 708. 



76em-like or Irregular-flowered Teesdalia. Fl. May. Britain. 

 PI. 1 to 2 inches. 



2 T. LEPI'DIUM (D. C. syst. 2. p. 392.) petals equal. Q. H. 

 Native of sandy, sterile, somewhat wooded places throughout the 

 south of Europe, especially in Portugal and Spain in elevated 

 fields about Madrid, above the monastery of St. Bernard. About 

 Montpelier and in Lower Dauphiny, also in Mauritania. Lepidium 

 nudicaule, Lin. spec. 898. Thlaspi nudicaule, Desf. atl. 2. p. 67. 

 Teesdalia regularis, Smith in Lin. trans. II. p. 283. Magn. 

 monsp. 186 and 187. icon. Stamens usually 4, rarely 6. 



Var. /3, integrifolia (D. C. syst. 2. p. 393.) leaves entire, not 

 pinnate. Native of Spain and Sardinia. 



Var. 7, acutiloba (D. C. 1. c.) leaves more oblong, with 3 or 

 4 acute lateral lobes or teeth, and an elongated, acuminate ter- 

 minal one. Native of the island of Scio. 



Lepidmm-\\\ie or Regular-flowered Teesdalia. FL Feb. May. 

 Clt. 1818. PL 1 to 2 inches. 



Cult. These pretty little annuals should be sown on rock- 

 work or in a dry sandy situation, and the seeds may afterwards 

 be allowed to scatter themselves. 



XXXIX. PLATYSPE'RMUM (from TrXarvc, plalys, broad, 

 and o-TTtpyua, sperma, a seed ; seeds broad). Hook. fl. bor. amer. 

 t. 18. B. 



LIN. SYST. Tetradynamia, Siliculosa. Silicle elliptical, with 

 navicular valves, terminated by a short, blunt stigma ; cells 4-5- 

 seeded ; seeds nearly orbicular, flat, cordate at the base, edged 

 with a broad wing. A small annual plant with radical runcinate 

 leaves, and 1 -flowered radical pedicels. Stamens naked. Petals 

 and sepals about equal in length. 



1 P. SCAPI'OERUM (Hook. 1. c.). Q. H. Native of North 

 America on the western coast. 



Scape-bearing Platyspermum. PL 2-3 inches. 



Cult. A trifling little plant of easy culture, well adapted for 

 rock-work, where the seeds may be sown. 



* * Cells of silicle I -seeded. 



XL. IBE'RIS (from the country called Iberia, now Spain ; 

 most of the species grow in such climates). Lin. gen. no. 804. 

 Gscrt. fruct. 2. p. 279. D. C. syst. 2. p. 398. prod. 1. p. 178. 



LIN. SYST. Tetradynamia, Siliculosa. Petals 4, 2 outer ones 

 largest. Silicle much compressed, truncately emarginate. Seeds 

 ovate, pendulous. Herbs or sub-shrubs. Stems round, usually 

 smooth, sometimes fleshy. Leaves alternate, linear, or obovate, 

 entire, toothed, or pinnatifid, sometimes thickish. Racemes 

 sometimes elongated, sometimes corymbose when in flower, after- 

 wards elongated, and sometimes, even after flowering, corym- 

 bosely-umbellate ; pedicels bractless. Flowers either white or 

 purplish, never yellow ; the outer flowers of the corymb are 

 much more irregular than the inner ones. 



SECT. I. IBERI'DIUM (altered from Iberis). D. C. prod. 1. 

 p. 179. Radicle descending. Seed not margined. Dissepiment 

 simple. 

 Cc 



