Bigelovia. COMPOSITE. 135 



bracts linear-lanceolate, attenuate-acute, usually one or two outer ones loose and foliaceous, 

 these sometimes equalling the head aud resembling uppermost leaves of the branchlets : rays 

 4 to 8, about 3 liues long : disk-flowers hardly more numerous : young akenes pubescent. 

 Proc. Am. Acacl. xvi. 79. Part of A. sujfrittivosus, Eaton, 1. c., which, indeed, it approaches, 

 but is nearer the preceding. Mountains of Nevada, W'atsoii, Palmar, aud of E. Utah, M.E. 

 Jones. 



6. MACRONEMA, Gray. Heads middle-sized or rather large, solitary or few, 

 terminating leafy branches : involucre canipamilate, of lanceolate or linear bracts 

 in few ranks and of somewhat equal length ; innermost thin-chartaceous or partly 

 scarious ; outer with conspicuous foliaceous tips, or loose and foliaceous, passing 

 into leaves : rays few and conspicuous, or in the typical species wanting : style- 

 appendages long and attenuate-filiform, much exserted : akenes slender, com- 

 pressed, few-nerved, soft-pubescent : pappus soft and slender : low and many- 

 stemmed from a suffrutescent base, not resinous-punctate : steins or brunches leafy 

 to the summit, but no axillary fascicles : leaves soft, spatulate-oblong to broadly 

 linear, sessile, entire, but margins sometimes undulate. -- Proc. Am. Acad. 

 vi. 542, xvi. 79. Macronema, Nutt. Trans. Am. Phil. Soc. 1. c. 322. 



* Connecting with preceding group; the involucre being somewhat imbricated. 



A. Greenei, GRAY. About a foot high, branching from a decidedly shrubby base, not vis- 

 cidulous, or above very obscurely visci-d-puberuleut : the typical form otherwise quite gla- 

 brous : leaves spatulate-oblong or somewhat lanceolate (half-inch to barely inch long, 2 or 3 

 lines wide), obtuse or mucrouate: heads solitary or few and crowded, half-inch high: bracts 

 of the involucre in about 3 series, lanceolate to linear, all but the innermost with conspicuous 

 and spreading mostly elongated-subulate foliaceous tips : rays 2 to 7, 3 or 4 lines long : 

 disk-flowers 10 to 16. Proc. Am. Acad. xvi. 80. Mountains of N. California, about the 

 heads of the Sacramento, Greene, Primjlc. Also mountains of Oregon and Washington Terr., 

 Cusick. Passes freely into 



Var. mollis, GRAY, 1. c. From ciuereous-puberulent to canesceut-tomeutose, even to 

 the more foliaceous involucre. A. mollis, Gray, Proc. Am. Acad. xvi. 80. N. California 

 (the intermediate form), Prinyle. Mountains of Oregon and Washington Territory, Cusick, 

 Brandegee, <:. 



* * Low, a span or two high, viscidly glandular-puberulent : heads commonly solitary, termi- 

 nating the leafy simple stems or branches: involucre simpler and louse outer bracts more 

 foliaceous, often enlarged: species probably confluent. 



A. SUffruticosus, GRAY. Destitute of tomentum : stems glandular-pubescent or puberu- 

 leut : heads two-thirds to three-fourths inch high : rays 2 to 5 and somewhat exserted, or 

 none: disk-flowers 10 to 30. Proc. Am. Acad. vi. 542, & Bot. Calif, i. 313. Marronema 

 suff'niticosa, Nutt. I.e. Alpine or subalpine region of the Sierra Nevada, California, from 

 Mariposa Co. and Humboldt Mountains, Nevada, northward to Oregon and N. Wyoming ; 

 first coll. by Nuttall. 



A. Macronema, GRAY, 1. c. Stems stouter, whitened by a dense and close tomentum : 

 head commonly larger (inch long) : rays always wanting. Macronema discoidea, Nutt. 1. c. 

 Rocky Mountains iu Colorado and Wyoming, and higher mountains in Nevada and eastern 

 border of California ; first coll. by Nuttall. 



31. BIG-EL.6VIA, DC. (Dr. Jacob Bigelow, author of Florida Bostorii- 

 ensis, Medical Botany of U. S., &c.) - - The original a perennial herb, most 

 related to Solidago ; as now extended a large genus (N. American, mainly west- 

 ern, with an anomalous Andean representative), mostly of suffrutescent or more 

 shrubby plants, the genuine species with few-flowered heads of marked habit and 

 character, while others are only artificially and not definitely distinguished from 

 Aplopappus, especially from Ericameria, by the total want of ray-flowers. Yet 

 some genuine Aplopappi are rayless. DC. Mem. Comp. t. 5, & Prodr. v. 329 



