MUSTARD FAMILY 75 



Locs. — Santa Eosa Isl., T. Brandegee ; Playa del Eey, Parish 11,881. 



Var. angustatum Jepson comb. n. Perennial ; base of the stem or the short branches of the 

 root-crown densely clothed with narrowly linear leaves, these leaves very much narrower than the 

 cauline leaves; flowers and young fruit horizontally spreading. — Low flats or hill slopes, 5 

 to 2000 feet: lower San Joaquin Eiver; Arroyo Seco Canon, San Gabriel Mts., Peirson 337. 

 The geographic distribution seems incoherent; the material may, therefore, need another inter- 

 pretation. 



Eefs. — Erysimum insulare Greene, Bull. Torr. Club 13:218 (1886), type loc. San Miguel 

 Isl., Greene; Jepson, Man. 433 (1925). Cheiranthus insularis Greene, Pitt. 3:131 (1896). 



C. suffrutescens Abrams, Bull. S. Cal. Acad. 2:41 (1903), type loc. Port Ballona, Los Angeles 

 Co., Abravis 2511. Var. angustatum Jepson. Cheiranthus angustatus Greene, Pitt. 3:132 

 (1896), type loc. San Joaquin Eiver, San Joaquin Co., Greene. 



Erysimum repandum L. Amoen. Acad. 3:415 (1756), type European. Annual, branched 

 above; leaf -blades linear-lanceolate, repand-dentate; flowers yellow, 2 to 3 lines long; pods 

 4sided, 2% inches long, rigid, horizontal, spine-like. — Introduced from Europe; troublesome in 

 alfalfa fields, becoming a timibleweed; sometimes miscalled Eussian Thistle: Modoc Co., Man- 

 ning 25. 



Erysimum cheiranthoides L. Sp. PI. 661 (1753), type European. Annual; erect, branch- 

 ing above; leaf -blades lanceolate, entire or slightly dentate, short-petioled; flowers pale yellow, 

 2 lines long; pods 4-sided, % to 1 inch long, ascending on slender spreading pedicels 4 lines 

 long. — Introduced from Europe: adventive along railroad. Placer Co., Sonne. 



18. MATTHIOLA R. Br. 



Stout stellate-tomentose herbs with oblong or linear leaves. Flowers usually 

 purple, sweet-scented; petals with long claws and broad showy limbs. Pod large, 

 linear, nearly terete or compressed; stigmas thickened or horned at the back. 

 — Species 50, Europe and South Africa. (Peter Andrew Matthioli, 1500-1577, 

 Italian physician and celebrated botanist.) 



1. M. incana R. Br. Garden Stock. Stems erect, branched above, 2 feet 

 high; leaf -blades entire or sinuately dentate, 4 to 7 inches long; flowers % to 1^4 

 inches broad; pods 2^/2 to 4l^ inches long; seeds thin, flat, circular, wing-margined. 



Native of Europe; naturalized along the seashore bluifs of San Diego and 

 Orange Cos. Mar. 



Locs.— Del Mar, Newlon 311; Carlsbad (Bull. S. Cal. Acad. 19«:18) ; Oceanside; Aliso Pt., 



D. L. Crawford. 



Eefs. — Matthiola incana E. Br.; Ait. Hort. Kew. ed. 2, 4:119 (1812) ; Jepson, Man. 434 

 (1925). Cheiranthus incanus L. Sp. PI. 662 (1753), type loc. seacoast, Spaia. 



19. PARRYA R. Br. 



Perennial herbs, with basal leaves and flowering stems borne on the crown of 

 a simple or branched caudex. Flowers purple or rose-color, the clusters showy. 

 Stigma 2-lobed. Pod very strongly flattened, produced at apex into a prominent 

 acute or attenuate point, the valves 1-nerved. Seeds convex or turgid, in 2 rows 

 in each cell. — Species about 15, alpine or arctic regions of North America and 

 northern Asia. (Capt. W. E. Parry, British navigator, who discovered the first- 

 known species while on quest of the Northwest Passage. ) 



Pods divaricately spreading ; flowering stems 2 to 3 times as long as the leaves 



1. P. cheiranthoides. 

 Pods ascending ; flowering stems scarcely exceeding the leaves 2. P. eurycarpa. 



1. P. cheiranthoides Jepson comb. n. (Fig. 140.) Plants 3 to 6 inches high, 

 the scapose flowering stems and the leaves caespitose on a thick caudex, the caudex 

 simple or with few short branches; leaf -blades spatulate or oblanceolate, acute or 

 obtuse, densely stellate-tomentose, entire, 1 to 3 inches long, drawn down to a 

 petiole at base, i/^ to l^/^ inches long; racemes many-flowered; pods ensiform, atten- 

 uate to the short style, 1 to 11/2 inches long, glabrous, 2 to 4-seeded; pedicels 3 to 4 

 lines long, both the pedicels and the pods spreading horizontally. 



