440 ORDER 70. COMPOSITE. 



tho involucre. 2 Rhizome tuberous. Lvs. alternate, very densely 

 tomentous beneath, decurrent into the wings of the stem. Hds. sessile, 

 densely crowded into a woolly terminal spike. (Conyza, MX.) 



P. pyciiostachyum E1L St. simple; Ivs. lanceolate, finely scrrulntc, smooth 

 above ; spike continuous. Sandy soils, S. Car. to Fla A curious plant, 2 to 3f 

 high. Lvs. a finger's length, dark green above, creamy? white beneath, as are also 

 the wings of the stem. Spike 2 to 3' long. May Aug. 



37. BORRICH'IA, Adans. SEA OX-EYE. (Dedicated to Olof Borrich, 

 a Danish botanist.) Heads radiate, many-flowered ; rays $ , fertile ; 

 scales imbricated, the outer leafy ; receptacle flat, chaffy, the chaff 

 rigid, persistent ; achenia 4-angular, crowned with a 4-toothed pappus. 

 Shrubby maritime plants with opposite Ivc. and solitary, yellow hds. 

 (Buphthalmum, L.) 



B. fmtescens DC. Minutely canescent downy ; Ivs. lanceolate and oblanceolato 

 obscurely repand-toothed, slightly connate at base, chaff of tho recept. cuspidate 

 with a rigid point. Va. to Fla. St. 1 to 3f high. Lvs. 2 to 3' long, rounded 

 at the end (with a cuspidate point), varying to linear, the upper alternate. Jn. 

 Oct. 



38. ECLIP'TA, L. Head many-flowered ; ray fls. ? numerous nar- 

 row ; disk $ tubular, mostly 4-toothed ; scales 10 12, in 2 rows, 

 leafy, lance-ovate ; receptacle flat ; chaff bristly ; achenia somewhat 

 angular or 2 -edged ; pappus 0. Herbs strigose with rigid hairs, erect 

 or procumbent. Lvs. opposite. Heads axillary and terminal, solitary. 

 Fls. white. (Fig. 328.) 



B. erecta L. St. often decumbent ; Ivs. lanceolate or lance-oblong, tapering to 

 each end, subserrate ; ped. longer than the heads ; scales or leaves of the involucre 

 acuminate. Damp soils, Md., Ohio, and ILL, S. to Flor. Stem often rooting at 

 the lower joints, 1 3f long, with an elastic, thread-like fiber. Leaves 1 to 2' 

 long, rough, obscurely tripli-veined. Heads small, with minute flowers and short 

 rays. The juico turns black, and is said to dyo wool black. Jn. Sept. (E. 

 procumbens and brachipoda, MX.) 



39. POLYM'NIA, L. LEAF-CUP. (The name of one of the ancient 

 Muses ; why applied to this plant is not obvious.) Heads radiate. In- 

 volucre double, outer of 4 or 5 large, leafy scales, inner of about 10 

 leaflets, concave ; ray -flowers pistillate, few ; disk sterile ; receptacle 

 chaffy ; pappus none. 2 Clammy herbs. Lvs. opposite. Fls. yellow. 



1 P. Canadensis L. Viscid-villous ; Ivs. denticulate, petiolate, acuminate, lower 

 pinnatifid, upper 3-lobed or entire, rays slwrter than the invol. A coarse, broad- 

 leaved, hairy-viscid plant, 3 5f high, Can., M". Y. to 111., and the mts. of Car. 

 Stem with opposite leaves and spreading branches. Flowers light-yellow, tho 

 rays short, surrounded by the concavo leaflets of the double calyx in such a man- 

 ner as to form a sort of cup, hence called Leaf-cup. Leaves feather- veined, 3 3' 

 long, and nearly as wide, lobes deeply divided and acuminate. Heads ' diam. 

 June. 



2 P. uvedalia L. Hairy and rough, stout ; Ivs. 3-lobed, acute, decurrent into 

 the petiole, lobes einuate-angled ; rays 7 to 12, much longer than the involucre. - 

 In highland woods. Stem 3 6f high. Lower leaves very large. Flowers large, 

 yellow, the rays oblong, obtuse. Jl. Neither of these plants has been found in 

 N. Eng., and they are rare in K Y., but not uncommon in the "W. and S. W. 

 States. 



40. CHRYSOG'ONUM, L. (Gr. #pwr6?, gold, ydvv, knee ; the golden 

 flowers at the joints.) Heads many-flowered, radiate ; rays about 5, $ , 

 fertile, disk but sterile ; scales in 2 rows of about 5 each, the outer 



