1907] Hall. Compositae of Southern California. 285 



4. H. argutum Nutt, Trans. Am. Philos. Soc. ser. 2, vii. 447 

 (1841). 



Plant 3 to 10 dm. high, leafy up to the inflorescence : herbage 

 shaggy with brown hairs below, the upper part of the stem and 

 the inflorescence blackish-green and glandular : leaves oblong to 

 lanceolate, acute, remotely but saliently dentate ; the lower ones 

 7 to 20 cm. long, 1 to 4 cm. wide ; upper cauline leaves sessile and 

 narrow : ligules probably yellow : pappus gray. 



A little-known species first collected in the hills back of Santa 

 Barbara by Nuttall, who described the involucre as ' ' smooth and 

 blackish-green." My description is drawn from the following 

 specimens, all of which have a densely glandular inflorescence: 

 Santa Cruz Island, Aug., 1886, Greene; Santa Lucia Mts., Aug.. 

 1885, Plaskett; Santa Rosa Island, Jun., 1888, Brandegee. 



5. H. Grinnellii Eastwood, Bull. Torr. Club xxxii. 217 



(1905). 



Slender, 2 to 6 dm. high, with leaves mainly in a basal cluster : 

 herbage densely clothed below with long white or brown woolly 

 hairs; upper part of stem granular-puberulent ; peduncles and 

 involucres beset with numerous short-stipitate glands: basal 

 leaves oblanceolate, tapering to a broad petiole, mostly repand- 

 denticulate and acute, a few entire and obtuse, 4 to 12 cm. long. 

 1 or 2 cm. wide ; the cauline few, linear-acuminate, sessile, entire 

 or nearly so : panicle open, the branches few and widely spread- 

 ing: peduncles 1 to 3 cm. long: involucre 8 to 10 mm. high; its 

 bracts linear-attenuate: ligules yellow: pappus white or with a 

 yellowish tinge. 



Arroyo Seco, near Pasadena, Dec., 1903, and Jul., 1904,6rn'w- 

 n-ell; Malibu Creek, Santa Monica Mts., Aug. 5, 1898, Barber; 

 Fish Creek, San Bernardino Mts., J. and H. W. Grinnell, no. 246 

 (less pubescent above). 



H. BRANDEGEI Greene is known only from the original collec- 

 tion, Santa Lucia Mts. (north of our district), 1885, Brandegee. 

 but is to be expected further south. It is much like H. Grinnellii. 

 but may be distinguished by its short and broad (5 cm. or less 

 long) obtuse entire leaves. 



