Aplopappus. COMPOSITE. 133 



tips, or some outer looser ones foliaceous or foliaceous-tipped : rays few, some- 

 times only one (which alone definitely separates the group from Bigelovid, and 

 even this fails in one or two species !) : disk-corollas commonly somewhat ampli- 

 ate upward and rather deeply 5-toothed : style-appendages (with some exceptions) 

 filiform or slender-subulate : akenes slender : pappus fine and soft : all W. North 

 American shrubby or fruticulose plants, very leafy, mostly with Heath-like foliage, 

 glabrous or almost so, except in one species, disposed to be resinous-dotted and 

 balsamic-viscid. — PI. Wright, ii. 80. Ericameria, Nutt. Trans. Am. Phil. Soc. 

 1. c. ; Benth. & Hook. Gen. ii. 255. 



* Anomalous for its broad although small leaves, also in the frequent absence of the scanty rays : 

 involucral bracts (as of the next following group) all close and unappendaged, the outer suc- 

 cessively shorter. 



A. OUneatUS, Gray. Shrub a foot or so high, intricately branched and spreading, bal- 

 samic-glutinous : leaves thick, cuneate or rarely obovate, retuse, sometimes apiculate, entire 

 but inclined to be undulate, usually resinous-punctate, 2 to 4 lines long, larger ones petioled : 

 heads corymbosely fasciculate, 5 or 6 lines long : involucre turbinate ; bracts lanceolate or 

 nearly linear, rather obtuse : rays 2 or 3, or solitary and small, or as commonly wanting : 

 style-appendages slender-subulate, not longer than the stigmatic portion : akenes pubescent. 



— Proc. Am. Acad. viii. 635, & Bot. Calif, i. 312. Bigelovia spathulata, Gray, Proc. Am. 

 Acad. xi. 74, & Bot. Calif, i. 613, also B. rupcstris, Greene in Bot. Gazette, vi. 184, the rayless 

 state ! — Canons and cliffs in the Sierra Nevada, California, from Placer Co. and the Yosem- 

 ite to the Mexican border below San Diego, and in Arizona; first coll. by Bolander and 

 southward by Palmer, &c. 



# # Typical species : leaves from filiform to very narrowly linear, thick : proper bracts of the in- 

 volucre obtuse or barely acute and close : shrubs a foot to a yard or more high. 



•J— Heads only 3 or 4 lines high, in close cymose clusters terminating fastigiate branchlets: bracts 

 of the involucre in only 2 or 3 series, no loose outer ones : leaves half-inch or less long: akeneB 

 villous: style-appendages shorter than the linear stigmatic portion, not attenuate. 



A. laricifolius, Gkat. About a foot high : leaves linear-acerose, rigid, mucronate, con- 

 spicuously resinous-punctate and becoming viscid, crowded but seldom axillary-fascicled ; 

 larger ones narrowed downward and flatter : involucral bracts subulate-linear, acute : rays 

 3 to 6, with rather conspicuous oblong ligules : disk-flowers 10 or 12 : style-appendages linear, 

 rather obtuse. — PI. Wright, ii. 80, & Pacif. B. Kep. iv. 99 ; Bothrock in Wheeler Rep. vi. 144. 



— Western borders of Texas to mountains of Arizona, first coll. by Wright, Bigelow, &c. 



A . monactis, Gray. A foot to a yard or more high, hardly becoming viscid : leaves not 

 punctate, mostly obtuse or pointless, more disposed to have axillary fascicles, otlyjrwise not 

 unlike those of the foregoing : involucral bracts only 8 or 10, oblong or linear-oblong, obtuse, 

 thin-chartaceous : ray-flower solitary with an elongated-oblong ligule, wanting to some 

 heads : disk-flowers 5 or 6 : style-appendages oblong-ovate, acute. — Proc. Am. Acad. xix. 2. 



— S. E. California, on the San Bernardino Mountains and Mohave Desert, Palmer, Parish, 

 Pringle. 



*- 4_ Heads 4 or 5 lines high, paniculate: involucral bracts imbricated in several ranks: style- 

 appendages filiform-subulate : leaves all filiform or nearly terete, excessively numerous and 

 axillary-fascicled . 

 ++ Involucre narrow, 7-20-flowered ; its bracts all erect, more or less obtuse, somewhat tomentu- 

 lose-ciliolate when young; outer successively shorter, becoming greenish and passing into the 

 very short leaves of the ultimate branchlets : cauline leaves short: shrubs 2 to 5 feet high, bear- 

 ing very numerous heads : young parts disposed to be cinereous-pruinose or puberulent. 

 A. ericoid.es, Hook. & Arn. Fastigiately much branched : cauline leaves only half-inch 

 and those of the dense fascicles 2 or 3 lines long : rays 3 to 5, short : akenes glabrous. — 

 Bot. Beech. 146 ; DC. Prodr. v. 346 ; Gray, Bot. Calif, i. 313. Diplopappus ericoides, Less, in 

 Linn. vi. 117. Ericameria microphylla, Nutt. Trans. Am. Phil. Soc. 1. c; Torr. & Gray, 1. c. 



— California along the coast, especially on sand-hills near the sea; first coll. by Chamisso. 

 A. Palmeri, Gray. Paniculately much branched : cauline leaves often inch long : lower 



bracts of involucre more greenish-tipped : rays 3 or 4 and disk-flowers 5 to 15 : akenes pubes- 



