308 • LEGTCJMINQSJS. 



nate- rachis prolonged through the head as steraile point about 3 lines 

 ong; flowed 3 or % lines long; calyx-teeth subulate, i tim« « 

 W as the tube; corolla reddish or deep purple, the ends of the petals 

 niofe or less definitely white-tipped; pod exserted, 2-seeded; seed 

 obliquely oval, straw-colored. . 



Common on low hills and in valleys: Los Angeles and ban Luis 

 Obispo Cos. northward through the Coast Range region (Alameda 

 San Francisco. Napa Valley. Solano Co.. etc.), ranging beyond the 

 northern boundary of California. Apr. -May. 



10 T microdon H. & A. Stems erect or decumbent stoutisK 

 8 to 16 in ong, faintly pubescent; leaflets broadly obcordate serru- 

 late 6 lines long; heads 4 lines broad; involucre 12 to lo- lobed, the 

 lobes 3 to several-toothed and spreading abruptly from the head after 

 anthesis; calyx-teeth short, * or | the length of the tube; corolla 



"Plain^^l^tn 11 Joaquin and Sacramento; valleys of the Coast 

 Ranges (Alameda Co., Mt. Tamalpais, Napa A alley and north- 

 ward). Apr. 



11 ' T microcephalum Pursh. Stems slender, erect or decum- 

 bent,' 3 in.Teven 2 ft. long; herbage soft-pubescent; leafle s obova 

 serrulate notched at apex, stipules ovate, acuminate; heads 3 lines 

 broTd involucre about 9-lobed, the lobes erect, acuminate, cuspidate, 

 entire' 3-nerved; calvx-teeth longer than the tube, spinulose at apex 

 marSned Tat base with a broad often denticulate or scarious border 

 which X more or less protruded; corolla white or light rose-color, 

 scarcely exceeding the calyx-teeth; pod globose, 1-seeded. 



miTides and valleys: North Coast Ranges Vacaville and St. 

 Helena) southward to' San Francisco, Pacific Grove and Southern 

 California. Apr. 



12 T varieeatum Xutt. Glabrous annual; stems slender decum- 

 bent or ^scendiW leaflets obovate to oblong-oblaneeo ate obtuse or 

 retuse Sose- errulate, 4 to 10 lines long; stipules oblong- or 

 ovate lanceolate sharplv toothed or laciniate; peduncles slender, 

 S^SSuM leaved involucre laciniate, shorter than the heads; 

 heads small (3 to 15-flowered and } in. broad or less); calyx-tube 

 l.^nerved t teeth subulate-setaceous, entire, shorter than the deep 

 iuinle oi whitish corolla but longer than the tube; pod 2-seeded. 

 P Common in low moist ground, throughout California. Apr -May. 



white tips. . , 



13 T. oliganthum Steud. Pale green, glabrous annual; stems 

 erect very slender, simple or with a few ascending branches, 7 to lo 

 in hiMi pper leaflets linear, acute, f to 1 in. long, spurn ose- 

 erra e S or neariy entire; lower leaflets cuneate-oblong or -obovate 2 

 or 3 lines Kg? petiole's very slender; stipules lanceolate, laciniate; 



