1907] Hall.Compositae of Southern California. 251 



awns. Since M. machrochaeta, as originally described, differs 

 from M. lineari folia only in its shorter paleae, it is thus seen to 

 be but the immature state of this species. 



5. M. Lindleyi (DC.) Gray, Proc. Am. Acad. ix. 210 (1874). 

 Calais Lindleyi DC., Prodr. vii. 58 (1838). Uropappus Lindleyi^ 

 Nutt, Trans. Am. Philos. Soc. ser. 2, vii. 425 (1841). Calais 

 Parryi Gray, Pacif. R. Rept. iv. 112 (1857). Microseris Parryi 

 Gray, Proc. Am. Acad. ix. 209 (1874). Calais pluriseta Greene, 

 Pitt. i. 30 (1887)(f). 



Stem short or scarcely any, but the stout naked scapes or 

 scape-like peduncles usually 2 to 5 dm. high, scarcely thickened 

 under the head: herbage glabrous, or furfuraceous-puberulent 

 when young : leaves as in M . lineari folia, but rather broader : 

 achenes commonly reddish-brown to gray, slightly narrowed to- 

 ward the truncate summit: pappus dull brown or sordid, per- 

 sistent, at maturity 12 to 15 or 18 mm. long including the awn. 

 this arising from a shallow notch and but little shorter than the 

 mature palea. 



On the plains and in the foothills ranging into the Transition 

 Zone, from middle California to San Diego and on the islands; 

 not so common as M. linearifolia and not reported from the Desert 

 Area. 



M. Parryi was based on immature specimens in which the 

 paleae are exceeded by the awns and, as suggested by Mr. T. S. 

 Brandegee, 03 is probably only an early stage of M. Lindleyi. In 

 the absence of specific characters on which to separate it, this 

 species may well be suppressed, as is likewise the case of a number 

 of others in this genus which would never have received names if 

 their characterization had been deferred until complete and ma- 

 ture specimens were at hand. 



Var. Cleveland! (Greene) Hall, comb. nov. Calais Clevelandi 

 Greene, Bull. Calif. Acad. ii. 153 (1886). C. Parryi Greene, 1. c. 

 49 ; not Microseris Parryi Gray. Uropappus Clevelandi Greene. 

 Eryth. 1. 136 (1893). U. Lindleyi Clevelandi Jepson, Fl. W. 

 Mid. Calif. 494 (1901). Scapes slender, not at all fistulous- 

 thickened: achenes not narrowed toward the summit: awn less 



i. 126 (1890). 



