OF ARTS AND SCIENCES. 25 



Amblyopappus, Hook. & Arn. (Aromia, Nutt., Infantea, Remy), is 

 near to Bahia. It is distinguished mainly by the reduction of the 



Mex. Bound, t. 33. The species was founded on a form, hardly since collected, 

 with most of the disk-flowers infertile, and with their style almost entire. 



E. Pringlei. Depressed, an inch or two high, flowering from near the base, 

 and forming tufts, loosely and copiously woolly ; rays none ; flowers all fertile ; 

 akenes villous ; pappus of about 10 silvery-scarious and oblong-lanceolate point- 

 less paleas, of rather large size. — On gravelly plains, from the Mohave Desert 

 to Tucson, Arizona, first coll. by Palmer, then by Lemmon, and recently by 

 Prinrjie and Parish. Overlooked until lately in the herbarium, having been 

 confounded with the common pappose variety of E. multicaule, and as such 

 distributed by Mr. Pringle. 



* * Heads larger (3 or 4 lines high), pedunculate, terminating open branches: 

 rays 5 to 9, oval or oblong, e.xserted : anther-tips narrow and slender (in the 

 manner of B«»Tie/i'«) : receptacle low-conical or high-convex : leaves mostly 

 entire : larger plants 4 or 5 inches high, some species diffuse. 



■\- Rays about 5, small and inconspicuous : disk-flowers not very many : anther- 

 tips ovate-oblong, obtuse. 

 E. NUBiGENDM, Grecnc in litt. Densely white-woolly ; leaves lanceolate- 

 spatulate ; heads short-peduncled, narrow ; involucre of 5 oblong bracts ; rays 

 with oval ligule hardly longer tlian the disk-flowers, j'cllow ; receptacle with a 

 small conical centre ; palece of the pappus about 10, oblong or narrower, obtuse, 

 somewhat erose, nerveless, obscurely hyaline, half the length of the corolla, one 

 third the length of the akene. — On Cloud's Kest, above the Yosemite, at 9,000 

 feet, K. Ctirran, from Greene. 



-!-•(- Rays 5 to 9, exserted and ample, oval or oblong: anther-tips narrow and 

 slender : receptacle high-convex or obtusely low-conical. 



E. Wallacei. — Bahia Wailacei Gray, Pacif. R. Rep. iv. 105. Actinolepis 

 Wallacei, Gray, Proc. Am. Acad. ix. 108; with Var. rubella, a form with 

 rose-red rays, instead of the ordinary golden yellow ones. 



E. LANOSUM. — Bnrrielia lanosa, Gray, Pacif. R. Rep. 1. c. Actinolepis lanosa, 

 Gray, Proc. Am. Acad. 1. c. Remarkable for its white or rose-colored rays. 



§2. TRicnopiiYLLUM. — jrncAo7%//«m, Nutt. Gen. ii. 166. PA(V///s, Spreng. 

 Gen. Gol, but involucre only occasionally gamophyllous. The pappus is 

 always short, of firm and opaque nerveless and pointless paleaj, not rarely 

 much reduced, sometimes obsolete or wholly wanting. Elowers all yellow. 



* Suffruticose and cymosely polycephalous species ; the head small. 

 E. STiEcnADiFOLiuAi,Lag.— BrtA/a sta;chadifolia & D. artemisiafolia (Less.) DC. 

 There is hardly a doubt that Lagasca's plant was a fragmentary specimen of this 

 Californian coast species, with only rameal leaves, which are not rarely entire or 

 obsoletely lobed. The " Real del Monte " of Ha;nke is Monterey, California. 



E. confertiflorum, Bahia confertifiora, DC. With two rather marked 

 varieties. — Var. trifidum, the Bahia trifida, Nutt. 1. c, & B. confertifiora, 

 Gray, Bot. Calif. — Var. laxiflorum. Like the type, but with loose or more 

 open inflorescence, the heads mostly slender-peduneled ; the rays sometimes 

 larger. Bahia tenuifoUa, DC. ! 1. c. Coll. also by Coulter. 



