VOL. II.] 



MUSTARD FAMILY 



i. Cochlearia officinalis L-. Scurvy- 

 grass. (Fig. 1694.) 



Cochlearia officinalis L. Sp. PI. 647. 1753. 

 Cochlearia oblongifolia DC. Syst. Veg. 2: 363. 1821. 



Annual or perennial, diffuse, branching, gla- 

 brous, somewhat fleshy, the branches 6 / -i2 / 

 long. Lower leaves long-petioled, oblong, orbi- 

 cular or reniform, obtuse, X /-I/ l n g> dentate or 

 entire; upper leaves ovate or oblong, sessile or 

 short-petioled; flowers white, 2"-3" broad; pet- 

 als emarginate, or entire, thrice as long as the 

 calyx; raceme elongating in fruit; pedicels as- 

 cending, 3 // -4 // long in fruit; pods globose or 

 ovoid, 2 // ~3 // long, smooth or reticulated; valves 

 convex, strongly i-nerved; style ]/?." long. 



Along seacoasts and rivers, Anticosti to Greenland 

 and arctic America generally. Also in arctic Europe 

 and Asia. Summer. A valued antiscorbutic salad. 



8. ALLIARIA Adans. Fam. PI. 2: 418. 1763. 



Biennial or perennial, sparingly pubescent or glabrous, erect branching herbs, with broad 

 dentate cordate or reniform leaves, and rather large racemose white flowers. Sepals short. 

 Petals oblong, clawed. Stamens 6. Style very short, conic. Siliques linear, narrowly cyl- 

 indric, terete or nearly so, slightly constricted between the seeds when dry, the valves with 

 a strong midnerve, dehiscent from the base. Seeds oblong, striate, in i row in each cell; 

 cotyledons flat, incumbent. [From Allium, garlic, on account of its similar odor.] 

 " About 5 species, natives of Europe and Asia. 



i. Alliaria Alliaria (L. ) Britton. 



Hedge-garlic. Garlic Mustard. 



(Fig. 1695.) 



Erysimum Alliaria L. Sp. PI. 660. 1753. 

 Sisymbrium Alliaria Scop. Fl. Cam. Ed. 2, 2: 26. 



1772. 

 Alliaria Alliaria Britton, Mem. Torr. Club, 5: 167. 



1894. 



Erect, branching, i-3 high, glabrous or with 

 a few hairs on the petioles and leaf-margins. 

 Leaves reniform, broadly ovate or cordate, rarely 

 nearly orbicular, crenate or undulate, the lower 

 2 / -7 / broad on long petioles, the upper smaller, 

 sessile or nearly so; pedicels 2 // -3 // long, spread- 

 ing and very stout in fruit; flowers white, 3 // ~4 // 

 broad; pods glabrous, stiff", i / -2 / long, i" thick, 

 pointed, 4-sided when dry. 



Waste places, woods and along roadsides, Ontario 

 to southern New York, New Jersey and Virginia. 

 Naturalized from Europe. Native also of northern 

 Asia. May-June. Called also Jack-by-the-Hedge 

 and Sauce alone. 



9. SISYMBRIUM L> Sp. PI. 657. 1753. 



Annual or biennial, mostly tall and erect herbs, with simple entire lobed or pinnatifid 

 leaves, and yellow white or rarely pink flowers. Petals generally elongated. Siliques 

 elongated, linear, terete or flat, many-seeded. Valves mostly 3-nerved, dehiscent. Stigma 

 nearly simple, or with 2 short lobes. Seeds in i row in each cell of the pod, marginless. 

 Cotyledons incumbent. [Ancient Greek name of some crucifer.] 



A genus of about 50 species, of wide geographic distribution. In addition to the following, 

 about 8 other species are found in western North America. 



Leaves runcinate -pinnatifid. 



Flowers yellow; pods 1 A' long, appressed. i. S. qfficinale. 



Flowers cream-color; pods 2' -4' long, divergent. 2. S. altissimum. 



Leaves oblong or spatulate, dentate; flowers white or pink. 3. S. humile. 



