MUSTARD FAMILY 319 



8. Erysimum concinnum Eastw. Coast Wallflower. Fig. 2146. 



Erys-imum concinnum Eastw. Zoe 5: 103. 1901. 

 Erysimum ammophilum Heller, Muhlenbergia 8: 96. 1912. 

 Erysimum capitatum of authors. Not Cheiranthus capitatus Dougl. 



Biennial or short-lived perennial from a deep taproot, the stems stout, 15—20 cm. high, simple. 

 Basal and lower stem leaves 5 cm. long, oblanceolate, tapering to broad margined petioles as long 

 as the blades, runcinate-dentate or entire, green but finely appressed-pubescent with 2-forked 

 hairs ; upper leaves lanceolate, sessile or nearly so ; inflorescence at first a crowded capitate 

 corymb, becoming a short corymbose raceme in fruit ; petals 2-3 cm. long, canary yellow ; fruit- 

 ing pedicels stout, 7-15 mm. long, divaricate-spreading, or the lower somewhat recurved, pods 

 8—15 cm. long, ascending or spreading, 2-5 mm. broad, flattened; beak short and stout; seeds 

 winged all around ; cotyledons accumbent. 



Coastal region; southern Oregon to Point Conception, California. Type locality: near Mendocino, Mendo- 

 cino County, California. March-June. 



Erysimum concinnum subsp. suffrutescens Abrams. (Cheiranthus suffrutescens Abrams, Bull. S. Calif. 

 Acad. 2: 41. 1903.) Plants suffrutescent and branched below, often straggling, 4—10 dm. long. Leaves nar- 

 rowly linear-oblanceolate; petals yellow; pods widely spreading, 5-6 cm. long, 1.5-2 mm. wide, compressed 

 but somewhat 4-angled; seeds compressed, narrowly winged all around the margin. 



Sand dunes along the coast of southern California. Type locality: near Playa del Rey, Los Angeles County, 

 California. This coastal species displays marked local variations over its range and possibly more subspecies 

 should be recognized than this extreme southern variation. 



9. Erysimum Menziesii (Hook.) Wettst. Menzies' Wallflower. Fig. 2147. 



Hesperis Menziesii Hook. Fl. Bor. Amer. 1: 60. 1830. 



Erysimum grandiflorum Nutt. in Torr. & Gray, Fl. N. Amer. 1: 96. 1838. 

 Erysimum Menziesii Wettst. Oest. Bot. Zeitschr. 39: 283. 1881. 

 Cheiranthus grandiflorus Heller, Muhlenbergia 1: 145. 1906. 



Perennial from an elongated taproot, the caudex usually simple, 1-6 cm. high, often densely 

 clothed with the old leaf bases ; flowering stems usually several, 1-10 cm. high. Basal leaves 

 spatulate, narrowed to an elongated petiole, entire or obscurely few-toothed; racemes short and 

 crowded in flower, 1-3 cm. long in fruit; pedicels 2-5 cm. long; petals yellow, 15-18 mm. long, 

 with rounded or broadly oval blades; capsule ascending or spreading, flattened, 4-8 cm. long, 2.5- 

 3.5 mm. wide; style stout, scarcely 1 mm. long; stigma lobes prominent, diverging; seeds nar- 

 rowly winged. 



Sand dunes and beaches, Transition Zone; Mendocino, Sonoma, and Monterey Counties, California. Type 

 locality: Monterey Peninsula, California. Flowering nearly throughout the year. 



48. KONIGA Adans. Fam. PI. 2: 420. 1763. 



Perennial herbs, pubescent or canescent with forked hairs, with entire leaves, and 

 small white flowers in terminal racemes. Petals obovate, entire. Filaments slender, with 

 2 small glands at the base. Silicle compressed, oval or orbicular, dehiscent. Seeds 1 in 

 each cell; cotyledons accumbent. [Name in honor of Charles Konig, a curator in the 

 British Museum.] 



A genus of 4 species, natives of the Mediterranean region. Type species, Koniga maritima (L.) R. Br. 



1. Koniga maritima (L.) R. Br. Sweet Alyssum. Fig. 2148. 



Clypeola maritima L. Sp. PI. 652. 1753. 



Alyssum maritimum Lam. Encycl. 1: 98. 1783. 



Koniga maritima R. Br. in Denh. & Clapp, Narr. Exp. Afric. 214. 1826. 



Ascending or sometimes procumbent, freely branching, 1-3 dm. high, minutely pubescent 

 with appressed hairs. Basal leaves oblanceolate, narrowed into a petiole ; flowers white, fragrant, 

 about 4 mm. broad ; fruiting pedicels ascending, 6-8 mm. long. 



An escape from gardens, along streets and in waste places; native of southern Europe. Flowering nearly 

 throughout the year. 



49. ALYSSUM [Tourn.] L. Sp. PI. 650. 1753. 



Low branching stellate-pubescent annual or perennial herbs, with small racemose 

 yellow flowers. Filaments often dilated and toothed or appendaged. Stamens 6. Stigma 

 nearly entire. Silicle ovate, oblong or orbicular, compressed; valves nerveless, dehiscent; 

 septum thin. Seeds 1 or 2 in each cell, wingless ; cotyledons accumbent. [Greek, meaning 

 curing madness.] 



About 100 species, natives of the Old World. Type species, Alyssum montanum L. 



1. Alyssum alyssoides L. Yellow Alyssum. Fig. 2149. 



Clypeola alyssoides L. Sp. PI. 652. 1753. 



Alyssum alyssoides L. Syst. Veg. ed. 10. 1130. 1759. 



Alyssum calycinum L. Sp. PI. ed. 2. 908. 1763. 



Annual, usually branching from the base, erect, 10-30 cm. high, stellate-pubescent through- 



