PIPER—FLORA OF THE STATE OF WASHINGTON. 301 
SPECIMENS EXAMINED: Clallam County, Elmer 2696; Mount Adams, Suksdorf, Septem- 
ber, 1877; Mount Stuart, Brandegee 641; Elmer 1095. 
ZONAL DISTRIBUTION: Arctic. 
Smelowskia ovalis Jones, Proc. Cal. Acad. II. 5: 624. 1895. 
Tyre LocaLity: Mount Adams, Washington. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Olympic Mountains, /. M. Grant in 1889; Mount Adams, Hen- 
derson, August, 1892; Mount Rainier, Piper 2063; James Bryce in 1883; Allen 61. 
ZONAL DISTRIBUTION: Arctic. 
. 
BRASSICA. 
Cauline leaves auricled at base and clasping.........-..--.-.--------- 1. B. campestris. 
Cauline leaves not auricled or clasping. 
Beak of the pod very short, less than one-fourth the fertile portion. 2. B. nigra. 
Beak of the pod long, about equaling the fertile portion. .......-.. 3. B. arvensis. 
1. Brassica campestris L. Sp. Pl. 2: 666. 1753. TURNIP. 
TYPE LocaLity: European. 
SPECIMENS EXAMINED: Spangle, Piper, June, 1899; Waitsburg, Horner 73; Pullman, 
Hardwick, July, 1895. 
2. Brassica nigra (L.) Koch in Roehl. Deutschl. Fl. ed. 3. 4: 713. 1833. 
BLacK MUSTARD. 
Sinapis nigra L. Sp. Pl. 2: 668. 1753. 
Type Loca.ity: European. 
SPECIMENS EXAMINED: Pullman, Piper 4113; without locality, Vasey in 1889. 
8. Brassica arvensis (L.) B.S. P. Prel. Cat. N. Y. 5. 1888. CHARLOCK. 
Sinapis arvensis L. Sp. Pl. 2: 668. 1753. 
Brassica sinapistrum Boiss. Voy. Espagne 2: 39. 1839-45. 
Type Locauity: “Habitat in agris Europae.”’ 
SPECIMENS EXAMINED: Seattle, Piper, June, 1891; Pullman, Piper, August, 1893; 
Meyers Falls, Kreager 514. 
SISYMBRIUM. 
Pubescence of simple hairs or none; leaves pinnatifid. 
Pods subulate, appressed, 1 to 1.5 em. long......-.-.-------- 1. S. officinale. 
Pods linear, spreading, 5 to 10 em. long. .....--------------- 2. 8. altissimum. 
Pubescence of branched hairs. 
Flowers white; leaves mainly in a basal rosette.............-- 3.8. thalianum. 
Flowers yellow; branches leafy. 
Seeds biseriate in each cell.......--------- eee eee ee eee 4. S. canescens. 
Seeds uniseriate in each cell. 
Leaves tripinnate; herbage canescent.-.-.-.---.------- 5. 8S. sophia. 
Leaves pinnatifid or bipinnatifid, subglabrous. 
Capsules 10 to 14 mm. long, spreading. 
Pedicels 4 to 6 mm. long, shorter than the 
capsules.........-------------+---+--+--- 6. S. incisum. 
Pedicels 10 to 20 mm. long, longer than the 
capsules.......---.---.-------+---+-+--- 6a. S. incisum filipes. 
Capsules 3 to 6 mm. long on subequal ascending 
pedicels. ........-.------------------------ 7. 8. hartwegianum. 
1. Sisymbrium officinale (L.) Scop. FI. Carn. ed. 2. 2: 26. 1772. HEDGE MUSTARD. 
Erysimum officinale L. Sp. Pl. 2: 660. 1753. 
TYPE LOCALITY: European. 
SPECIMENS EXAMINED: Pullman, Hardwick, August, 1895. 
