170 Xill. CRUCIFER^. Sixapis. 



2. C. CiiKiKi. — Wall-FLoiver. — 5';. somewhat shrubby and decumbent at base ; 

 Ivs. entire or slightly dentate, lanceolate, acute, smooth; branches angular; pet. 

 obovate; siUques erect, acuminate.— '1|. From S. Europe. A popular garden 

 flower, admired for its' agreeable odor and its handsome corj-mbose clusters of 

 orange or yellow flowers. Plant 1 — 2fhigh. Jn. 



22. MATTHIOLA. R.Br. 



In honor of P. A. Matthioli, physician to Ferdinand of Austria, and botanic author. 



Calyx closed, 2 of the sepals gibbous at base ; petals dilated ; 

 siliques terete ; stigmas conuiveut, thickened or cornute at the back. — 

 Herbaceous or shrubby^ oriental -plants, clothed icith a hoary, stellate 

 ■pubescence. 



1. M. ANNUUS. R. Br. (Cheiranthus. Linn.) Ten-ioceks Stock. — St. herba- 

 ceous, erect, branched ; Ivs. hoary-canescent, lanceolate, obtuse, subdentate ; 

 silique subcylindrical, without glands.—® A fine garden flower from S. Europe. 

 Stem 2f high, and, with the leaves, covered v\-ith a soft, stellate pubescence. 

 Flowers variegated. Jn. -f 



2. M. iNCANUs. R. Br. (Cheiranthus. Linn.) Purple July Flmoer.Sl. 

 .shrubby at base, erect, branched; lis. lanceolate, entire, hoary-canescent; 

 siliqucs subcylindrical, truncate and compressed at apex, without glands.— (g) 

 One of the most popular flowers of the genus, native of England, &c. Stem 

 2f high. Flowers purple.— Several varieties are enumerated, as the Double- 

 flowered, Brompton Stock, and Bromptou Glueen. Jn. -j- 



3. M. FENESTRALis. R. Br. (Cheiranthus. Linn.) Window July Floicer. — 

 St. sutfruticose, erect, simple ; lis. crowded, recurved, undulate, downy ; siliques 

 downy, without glands, broadest at base.— From S. Europe. Plant If high. 

 Flowers numerous, large, purple. Jl. Aug. f 



4. M. Gr^ecus. R. Br. (Cheiranthus. Limi.) Grecian Stock. — St. herba- 

 ceous, erect, branched ; Ivs. lanceolate, glabrous ; siliq-ucs somewhat compressed, 

 without glands.--(D From Greece. Plant about If high, distinguished from 

 the remainder of the genus by its smooth foliage. Flowers white, appearing 

 all summer. -J" 



23. SIN APIS. 



Sepals equal at base, spreading ; petals ovate, with straight claws ; 

 siliques subterete ; valves veined ; style short and subulate, or ensi- 

 form ; seeds in a single series, subglobose, >>. — Fls. always yellow. 



1. S. NIGRA. Black Mustard. 



Lower Ivs. lyrate, -upper linear-lanceolate, entire, smooth ; silique smooth, 

 somewhat 4-angled, appressed to the rachis of the raceme.— (I) In cultivated 

 grounds and waste places. Stem 3— 6f high, round, smooth, striate, branching. 

 Leaves all petiolate, lower ones variously lobed and dentate, upper ones pen- 

 dulous and entire. Sepals and petals sulphur-yellow. Pods very numerous, 

 nearly 1' long, beaked with the 4-sided styles. S'eeds 00, small, globose, nearly 

 black, well known as a condiment. Jn. Jl. -^ ^ 



2. S. ARVENsis. Meld Mustard. 



St. and Ivs. hairy; sitiq^ie smooth, many-angled, torose, about 3 times 

 longer than the slender, ancipital style.—® Naturalized in N. Y., T. <f- G., 

 and in Vt., Dr. Bobbins. Lower leaves large, sublyrate-pinnatifid, upper ones 

 oblong-ovate, all repand-toothed. Silique somewhat spreading, IJ' long. Seeds 

 large and black. Jn. — Aug. ^ 



3. S. ALBA. White Mustard. — Lvs. lyrate, smoothish ; siliques hispid, torose, 

 shorter than the ensiform beak ; sds. large, pale yellow.—® Native of Europe. 

 Stem 2— 5f high, thinly hirsute. Leaves all lyrately pinnate, dentate, petiolate. 

 Siliques spreading, about 4-seeded. The seeds are used for about the same 

 purposes as those of S. nigra, much esteemed in medicine. Jn. Jl. f 



