380 COMPOSITE. Bahia. 



corollas with a narrow but commonly rather short and glandular or hirsute proper 

 tube. Anthers tipped with an ovate appendage. Style-branches with truncate- 

 capitate or obtuse tip, sometimes with a short subulate-conical appendage. Akenes 

 narrow, linear or oblong-linear and tapering to the base, 4-aiigled, the pubescence 

 minute or none; the terminal areola large. Pappus of several (4 to 12) blunt and 

 nerveless scarious scales (in true Bahia often callous-thickened next the base), 

 rarely obsolete or wanting. W. North American with a few Mexican and extra- 

 tropical S. American plants, perennials, with perhaps a single exception ; with oppo- 

 site or all but the lower alternate entire or divided leaves, and mostly peduncled 

 heads of yellow flowers. Benth. & Hook. Gen. PL ii. 402. 



Although the typical section is represented eastward of California, all our species are of the 

 two following sections ; the first species, however, approaches Bahia proper ; the last section con- 

 nects with Monolopia. 



1. Perennial, sometimes shrubby at base, floccose-woolly or cottony : leaves mainly 

 alternate and mostly either pinnately or ternately parted or lobed : scales of 

 the campanulate or obovoid involucre erect, commonly a little united at base, 

 oval or oblong, more or less carinately one-nerved : throat or limb of disk- 

 corolla rather narrow : style-branches truncate, or rarely minutely tipped : 

 scales of the pappus wholly nerveless. ERIOPHYLLUM, Gray. (Eriophyllum, 

 Lagasca. Trichophyllum, Nutt.) 



* Heads corymbose or cymose, small, short-pedicelled, ivith only 4 to 8 short rays : the 

 wool close and cottony : stems woody at base, leafy to the top : leaves alternate. 



1. B. artemisieefolia, Less. Two to four feet high, loosely branching, whitened 

 when young with a coat of close cottony wool, which is mostly nearly deciduous 

 with age, except from the lower surface of the once or twice pinnatirid leaves ; their 

 lobes few, linear, obtuse, with revolute margins : heads numerous in irregular pa- 

 niculate cymes : involucre cylindraceous-campanulate, slightly if at all woolly ; its 

 scales 8 to 10, oblanceolate or narrowly oblong : receptacle convex, strongly alveo- 

 late and toothed : scales of the pappus 8 to 12, oblong-linear, the four answering to 

 the principal angles or nerves of the akene rather longer. R. stctchadifolia & var. 

 Californica, DC., a stunted form, with leaves less lobed, or the uppermost, as often 

 happens, entire. 



Rocks and bluffs, common from the Bay of San Francisco to Santa Barbara. Decidedly 

 shrubby. Leaves somewhat like those of Artemisia vulgnris. Heads 3 or 4 lines long : scales 

 of the involucre distinct to the base or nearly so, becoming concave at maturity. Rays 6 to 8. 

 If this is the Eriophyllum stcechadifolium of Lagasca, that specific name has priority ; but 

 the leaves of that are (by implication) entire, and it may be an unrecognized species from Mexico, 

 as stated. 



2. B. confertiflora, DC. A foot or two high, white with a coat of close wool, 

 which is somewhat deciduous with age : branches erect and commonly fastigiate, 

 slender, naked at summit and terminated by a small and dense few- to many- 

 flowered corymbose cyme : leaves small, of cuneate outline, pinnately 5 - 7-parted 

 (rarely 3-parted) into narrow linear lobes : involucre obovoid or narrow campanulate ; 

 its scales about 5, broadly oval : receptacle convex or low conical in the centre, not 

 alveolate : scales of the pappus 8 to 14, oblong-linear, somewhat unequal. 



Var. trifida, Gray (B. trifida, Nutt.), seems to be merely a form growing in 

 more exposed stations ; with the leaves mostly sessile or tapering into a broadly 

 margined petiole, and 3 - 5-cleft at the apex into shorter lobes. 



Hillsides, &c., from the Bay of San Francisco to the Sierra Nevada and south to San Diego. 

 Shrubby at base, the flowering shoots mainly herbaceous. Involucre 2 lines long. Flowers 

 deep golden yellow : rays 4 or 5, broadly oval or orbicular. 



