510 COMPOSITJE. 



spring scape-like flowering stems (with many scales or bract-like 

 leaves) and later ample radical leaves. Heads in a racemose corymb, 

 subdicecious, i. e., the flowers on one plant perfect but mostly sterile, 

 the sterile flowers with tubular 5-cleft corolla and undivided style; 

 the flowers on another plant mostly fertile, the fertile flowers of two 

 kinds, perfect ones with tubular 2 to 5-cleft corolla and pistillate ones 

 with ligulate corolla, in both with style slightly cleft at apex. 

 Flowers whitish or pinkish. Achenes 5 to 10-ribbed. Pappus elongat- 

 ing in age, very soft and white. (Greek petasos, a broad-brimmed 

 hat, in allusion to the large leaves.) 



1. P. palmata (Ait.) Gray. Stem 7 to 10 in. high, glandular- 

 pubescent, its bract-like scales IJ to 2J in. long; leaves roundish in- 

 outline, green and nearly glabrous above, densely white-tomentose 

 beneath, at least when young, 12 in. broad or less, palmately cleft to 

 below the middle into 7 to 10 lobes; lobes denticulate, sinnately 

 toothed or 3-lobed at apex; petioles 4 to 7 in. long; heads 7 lines high; 

 bracts of the involucre rather loose; marginal flowers of fertile head 

 ligulate, the style slender and perfectly glabrous; disk-flowers often 

 very unequal, with slender tube abruptly dilated at the throat, and 

 the style strongly thickened above and minutely roughened or papil- 

 late; flowers of substerile head not well known to us. 



Deep shades of wooded canons from the Santa Cruz Mountains 

 {Loma Prieta, Forest Grove, Saratoga) to Sonoma Co., Ukiah, and 

 northward. Mar. 



24. CACALIOPSIS Gray. 



Floccose-woolly perennials with mostly radical palmately cleft or 

 parted leaves and few large rayless heads of numei-ous flowers ter- 

 minating the stoutish stems. Involucre broadly campanulate, its 

 bracts many, linear-lanceolate, acuminate, rigid rather than herba- 

 ceous, lleceptacle naked. Anthers entire at base. Style puberulent 

 below the slisjhtly flattened branches. Achenes lO-nerved. Pappus 

 copious, soft and white, equaling the corolla. (Greek kakalia, ancient 

 Greek name of some plant, and opsis, likeness.) 



1. C. Nardosmia Gray. One to IJ ft. high; leaves palmately 

 parted or cleft, the divisions broad, cleft or toothed, the radical 2J to 

 3J in. broad on petioles 2J to 4 in. long, the cauline few. similar to 

 the radical but smaller; heads about 1 in. high, corymbosely disposed 

 at the nearly naked summit of the stem; flowers yellow, honey- 

 scented. — (Adenostyles Nardosmia Gray.) 



Near the Geysers, Sonoma Co. ("in a pine grove; not common," 

 Bolander, 1864); Mendocino and Humboldt Cos. and northward. 

 Apr.-May. 



25. LUINA Bentham. 



Cottony-pubescent low plants with many ei'ect simple stems. 

 Leaves alternate, entire, sessile. Heads rayless, about 10-flowered, 

 disposed in terminal corymbs. Flowers yelkiw. Involucre oblong- 

 campanulate, its bracts 8 to 10 or 12, linear, rigid, carinately 1-nerved, 

 equal, lieceptacle naked. Corolla funiielform. Anthers sagittate 



