CRUCIFER/E. LIX. ERYSIMUM. LX. LEPTALEUM. 



213 



angled. . H. Native of Siberia. The whole plant is covered 

 with appressed white hairs. Flowers pale-yellow, large. Petals 

 obcordate. 



Redorvski's Treacle-Mustard. Fl. June, Aug. Clt. 1821. PL 

 1 to 2 feet. 



SECT. IV. CORI'NGIA (from cor, the heart ; shape of 

 leaves.) D. C. syst. 2. p. 507. prod. 1. p. 199. Style hardly 

 any. Petals erectish. Flowers pale-yellow or white, seldom 

 purple. Leaves cordate, and stem-clasping at the base. 



40 E. ALPINUM (Baumg. fl. trans. 2. p. 263.) leaves membra- 

 nous, smooth, cauline ones cordate-sagittate, stem-clasping, ob- 

 long, radical ones stalked, ovate. 2/. H. Native of Spain, 

 Cevennes, Alps of Alsace, Hercynia, Nassau about Jena, Tran- 

 sylvania, and the Apennines, in stony woody places of mountains. 

 Brassica alpina, Lin. mant. 95. Vill. dauph. 3. p. 330. t. 36. 

 Turritis pauciflora, Grim. Turritis Brassica, Liers. fl. herb. no. 

 518. Turritis sagittata, Schrank. mon. t. 99? A'rabis brassicae- 

 formis, Wallr. sched. 359. Root hard, twisted. Younger plant 

 with a few scattered hairs, the rest smooth, hardly glaucous. 

 Stem simple. Flowers white, almost like those of A'rabis. 



Alpine Treacle-Mustard. Fl.Ju.Aug. Clt. 1793. Pl.ltol|ft. 



41 E. PERFOLIA'TUM (Crantz. austr. 27.) radical leaves ob- 

 ovate, cauline ones cordate, stem-clasping, all blunt, smooth, 

 and glaucous ; pods 4-sided. O- H. Native of the temperate 

 parts of Europe and Asia, particularly Spain, France, Germany, 

 Italy, Tauria, Japan ; in England in Essex, but rare, near Har- 

 wich on the cliffs, as also at Bawdsey, and near Oxford ; in Suf- 

 folk ; in fields near Godstone and Marshfield, Sussex. Brassica 

 orientalis, Lin. spec. p. 931. Jacq. austr. t. 282. Smith, engl. 

 bot. t. 1804. Schkuhr. handb. 2. no. 1862. t. 186. E. campestre, 

 Scop. earn. ed. 2. no. 827. Brassica turrita, Weig. obs. 32. 

 Brassica campestris, Mat. sil. no. 500. Brassica perfoliata, Lam. 

 diet. 1. p. 748. Brassica alba, Gilib. fl. lith. in ust. del. op. 2. 

 p. 361. E. orientale, R. Br. in hort. kew. ed. 2. vol. 4. p. 117. 

 Coringia orientalis, Andrz. cruc. ined. Herb very smooth, glau- 

 cous. Stem simple, seldom branched. Flowers white or cream- 

 coloured. This plant is cultivated in Japan for the seeds. 



Perfoliate-leaved Treacle-Mustard. Fl. June. Britain. PL 1 

 to l foot. 



42 E. VIOLA V CEUM (D. Don, prod. fl. nep. 202.) leaves lanceo- 

 late, acute, pilose, denticulated, sagittate at the base, half-stem- 

 clasping ; stem straight, quite simple, pilose ; racemes short, 

 crowded ; petals quite entire, much longer than the calyx. If. . 

 H. Native of Gosaingsthan, where it is called Outch. Flowers 

 of a violet-purple colour. Siliques spreading. 



^zWaceozw-flowered Treacle-Mustard. PL 2 to 3 feet. 



43 E. AUSTRIACUM (Baumg. fl. trans. 2. p. 263.) radical 

 leaves obovate, cauline ones cordate-stem-clasping, all blunt, 

 smooth, and glaucous ; pods 4-sided, and striated with elevated 

 nerves. O- H. Native of Spain, very common in wheat fields, 

 Austria, Transylvania, and Iberia. Brassica Austriaca, Jacq. 

 austr. p. 45. t. 283, Brassica lutea, Gilib. fl. lith. in Ust. del. 

 op. 2. p. 361. Brassica perfoliata var. /3, Lam. diet. 1. p. 748. 

 Brassica orientalis ft, Pers. ench. 2. p. 206. Crantzia ochro- 

 leuca, Lag. fl. hisp. ined. Gorinkia Austriaca, Presl. fl. cech. p. 

 141. Very like E. perfoliatum, and is often confused with it, 

 but it differs in the flowers being a little smaller, yellow, or 

 cream-coloured, not white, and in the pods being more erect. 



Austrian Treacle-Mustard, or Hares-ear. FL May, June. 

 Clt. 1806. PL 1 to 1J foot. 



t Species not sufficiently known, but probably all referable to 

 Sect. HI. Erysimastrum. 



44 E. ALTI'SSIMUM (Lejeune, fl. spa. 2. p. 70.) $ . H. Na- 

 tive in mountain woods between Verviers and Limbourg. Leaves 



linear-lanceolate, channelled, quite entire. Petals pale-yellow, 

 obcordate. Pods 4-sided, terminated by a two-lobed stigma. 

 Stem erect, much branched, greyish-white from appressed hairs, 

 as well as the leaves. Flowers yellow. 



Tallest Treacle-Mustard. FL Ju. July. Clt. 1818. PL 3 feet. 



45 E. BI'COLOR (D. C. syst. 2. p. 509.) $ . H. Native of 

 Switzerland. Cheiranthus bicolor, Horn. hafn. 2. p. 613. Leaves 

 lanceolate, lower ones remotely-toothed, upper ones quite entire. 

 Pods spreading, 4-sided. Flowers yellow. 



Two-coloured Treacle-Mustard. Fl. June, July. Clt. 1819. 

 PL 1 to H foot. 



46 E. PU'MILUM (Horn. hort. hafn. 2. p. 613.) $ . H. Na- 

 tive of Switzerland. Leaves somewhat toothed, lower ones spa- 

 tulately-ovate ; upper ones linear ; pods much spreading, 4- 

 sided. Cheiranthus piimilus, Horn. &c. Flowers yellow. 



Z>w>ar/ Treacle-Mustard. Fl. June, July. Clt. 1823. PL | 

 to | feet. 



47 E. PA' TULUM (Horn. hort. hafn. suppl. 73.) $ . H. Na- 

 tive of ? Leaves lyrately-pinnatifid, rather scabrous, upper 

 ones sinuated. Pods spreading. Flowers yellow. 



Spreading-poAded Treacle-Mustard. Fl.Ju. Jul. Clt. 1824. PL? 



48 E. SYLVA'TICUM (Bieb. fl.taur. suppl.p. 441.) <J.H. Native 

 of the Ukraine in woods. Leaves lanceolate, remotely toothed. 

 Branches spreading. Corolla paler and rather larger than in E. 

 cheiranthoides. Pods spreading. 



Wood Treacle-Mustard. Fl. June, July. PL 1 to 2 feet. 



49 E. MARSCHALLIA'NUM (Andrz. in Bieb. fl. taur. suppl. p. 

 441.) $ . H. Native of South Podolia. Very near to E. hieraci- 



fdlium, but differing in the leaves and pods being more upright 

 and one-half shorter. Flowers yellow. 



Marschall-Rieberste'm's Treacle-Mustard. Fl. Ju. Jul. PI. 1 ft. 



Cult. The perennial herbaceous and sub-shrubby species of this 

 genus answer well for the flower-border in any common garden 

 soil; some of the smaller kind do well for ornamenting rock-work, 

 or to be grown in pots, and placed among other alpine plants; they 

 may be either increased by cuttings planted under a hand-glass, 

 by seeds or by dividing the plants at the root. The biennial 

 and annual kinds may all be sown in the open ground, and 

 treated as other hardy annuals and biennials. 



LX. LEPTA'LEUM (from XtTrraXfoe, leptaleos, slender; 

 leaves slender and filiform.) D. C. syst. 2. p. 510. prod. 1. 

 p. 200. 



LIN. SYST. Tetradynamia, Siliqiibsa. Silique roundish, ses- 

 sile ; stigmas 2, connivent. Calyx equal at the base. Stamens 

 4 or 6. Seeds numerous, in one row. Small smooth annual 

 herbs. Leaves glaucous, filiform, sometimes entire, sometimes 

 sparingly toothed, sometimes pinnately-parted ; lobes filiform. 

 Racemes terminal, few-flowered ; pedicels very short, rising from 

 the axillae of the leaves. Flowers small, whitish-purple. 



1 L. FILIFO'LIDM (D. C. syst. 2. p. 511.) some of the leaves 

 are entire, others sparingly lobed ; stem longer than the pods ; 

 pods rough from small down. 0. H. Native of Siberia at the 

 river Kuma. Deless. icon. sel. 2. p. 68. Sisymbrium filifolium, 

 Willd. spec. 3. p. 496. Pods axillary, erect or deflexed, covered 

 with short hairs at the base, which are hooked at the point. 



Thread-leaved Leptaleum. Fl. June, July. Clt. 1820. PL 

 1 or 2 inches. 



2 L. PYGM^TJM (D. C. syst. 2. p. 511.) leaves nearly all pin- 

 nate-parted ; stem shorter than the pods, which are muricated 

 and glabrous. 0. H. Native of Persia. Very like the first, 

 but differs in hardly having any stem, and in the leaves being 

 nearly all pinnate-parted, with linear distant lobes. Deless. 

 icon. sel. 2. t. 68. 



Pygmy Leptaleum. PL hardly an inch. 



Cult. These are little annual plants, but are not worth culti- 



