Sinapis alba. White Mustard 
SINAPIS Lin. Gen. PI. Tetrady,namia Siliquosa. 
Cal. patens. Cor. ungues re&i. Glandula inter flamina breviora et piftillum, 
interque longiora et calycem. 
Raii Syn. Gen. 21. Herb.® tetrapetal® siliquosa et siliculos®. 
SINAPIS alba, filiquis hifpidis : roftro obliquo longiffimo enfiformi. Lin. Syjl. Vegetab. p. 503. 
Sp. PI. p. 933. Haller Hijl. 4 66. 
SINAPIS alba. Scopoli FI. Carn. n. 843. 
SINAPI apii foliis. Bauh. Pin. 99. 
SINAPI album filiqua hirfuta, femine albo vel ruffo. I. B. II. 856. 
SINAPI fylveftre minus ? Parkins. 830. Raii Syn. f. 295. White Muftard. HuJfin. FI. Ami. 'i- 
2. p. 298. Lightfoot FI. Scot. p. 361. 
RADIX annua, fimplex, fibrofa, albida. 
CAULIS fefquipedalis ad bipedalem, eredlus, ramofus, 
craffiufculus, friatus , tener, fragilis, hirfutus, 
pilis numerofis, rigidiufculis, deorlum verfis. 
FOLIA petiolata, alterna, radicalia et pleraque cauliua, 
pallide virentia, venofa, utrinque hirfutula, 
pinnis trium circiter parium, inferioribus mi- 
tt i™ is» extima fubtriloba, omnibus varie den- 
tatis. 
FLORES lutei, terminales. 
PEDUNCULI tetragono- ftriati, 
CALYX: Perianthium tetraphyllum, foliolis paten- 
tibus, concavis, deciduis, Levibus, fublineari- 
bus, apice obtufis, fg. i, 2. 
COROLLA : Petala quatuor, fubrotunda, plana, pa- 
tentia, integra, unguibus eredtis, linearibus 
longitudine vix calycis, fg. 3. 
STAMINA: F ilament a lex, quorum duo breviora, 
virefcentps, fubulat*. Anthers luteae, eredi*, 
lublagittat*, fg. 4. 
GLANDUL/E ut in plerifque hujus generis, fg. 5. 
PISTILLUM: Germen obovatum, iubangulofum, ad 
lentem hilpidum. Stylus fubulatus, anceps, 
germine duplo fere longior, flaminibus paulo 
brevior. Stigma capitatum, fg. 6. 
PERICARPIUM : Siliqua hirfuta, fubarticulata, fub- 
tetrafperma, roftro longiffimo enfiformi ter- 
minatn, fg. 7, 8.- 
SEMINA, majufcula, fufca, fg. 9. 
ROOT annual, fimple, fibrous, and whitifh. 
STALK a foot and a half to two feet high, upright, 
branched, _ fomewhat clumfy, finely grooved ’ 
tender, brittle, and hirfute, the hairs nume- 
rous, ftiffiffi, and turned downward. 
LEAVES ftanding on foot-ftalks, alternate, thofe next 
the root and moft of thofe on the ftalk pin- 
nated, of a pale green colour, veiny, ffiohtly 
hirfute on both fides, compoled of three or 
four pair of pinnas, the lowermoft of which 
are very fmall, the terminal one often three- 
T-r *° oed ’ aud aR ^ em varioufly indented. 
FLOWERS yellow, and terminal. 
^ R ' S J ALKS having four grooves or corners. 
CALYX : a Perianthium of four leaves, which are 
Spreading , concave, deciduous, fmooth, fome- 
what linear, and blunt at top, fig. 1 , 2 . 
COROLLA: four roundifh Petals, flat, lpreading en- 
tire, claws upright, linear, fcarcely the length 
of the calyx, fg. 3. ° 
STAMINA: fix Filaments, two of which are (horter 
, than the reft, of a greeuilh colour, and taper- 
ing. Anthekie yellow, upright, fomewhat 
arrow-fhaped, fg. 4. 
GLANDS as in moft of this genus, fg. 5. 
PISULLUM: Germen in verfely ovate, {lightly angu- 
lar, hilpid when magnified. Style tapering 
two-edged, almoft twice the length of the 
germen, and a little Ihorter than the ftamina. 
„„„„ .. bT1GM '' forming a little head, fin. 6. 
SEED-VESSEL: a hairy Pod, fomew-hat jointed, con- 
taining about four feeds, terminated by a very 
long (word-fliaped beak, fig. 7, 8. 
SEEDS rather large and brown, jig. <y[ 
In the corn-fields in Buckiughamlhire, efpecially about High Wyeomb the „/i„ • 
troublelqme a weed among the corn as the Leaf: with us k is fonTlre Lr nriy U f “T “ d -“ 
on banks, and among the corn in Baterfea-fields, and well known to conftitnte a par! of yLg fZdbg! ““ " 
K‘if of a the fcv 7 ai fp T sof which 
certainty diftmgmlh them; but as thefe plants may occur when’they are not ftfficientNarv'] 1 ’ 'jil “*7?’ 7‘ th 
characters, it is necellary, to call in others to ou'r alfiftance • we may then in -IdV * ,lceci t0 exhibit thofe 
chandlers, ol.ferve, that the Sinaf.s alba is moft obvioufly diftingullhed from the itr k , L! . SKMUs J r P eaBc 
/Wy tair.fi. and from the arvenfisi for which it if perhaps' ZnchnZyl, TP 
having its leaves more divided or jagged as our figure expreffes. F c liable to lie miftaken, by 
It flowers in June, and ripens its feeds in July. 
