COMPOSITAE (^COMPOSITE FAMILY) 



841 



&^ 



y99. B. cermia. 



ohve or brown, nearly glabrous, obscurely nerved or nerveless, s..metimes 

 punctate ; mens nearly f as long as the achene, eciualinfr the ^-toothed pale-yellow 

 corolla. {B. connata, var. Gray.) — Sandy shores and rich soil, N. E. to xVIinn 

 westw. and southw. Sept., Oct. Fig. 997. '' 



Var. acuta Wiegand. Leaves subsessile ; heads larger ; outer bracts shorlei 

 (barely twice exceeding the disk), spreading, acute. (£. acuta Britton.) — Mo 

 And Kan. 



7. B. connata Muhl. (Swamp Beggar-ticks.) Tall and branching, 0.5-1.5 

 m. high; leaves bright green, undivided or some of the lower deeply parted 



lanceolate or elliptic, large, acuminate, slender-petioled, coarsely 



jtj serrate ; heads about 1 cm. high, short-pedunculate ; outer invo- 



^^^^ lucre of 4: or 5 short entire bracts; rays golden-yellow, generally 



\jT\ wanting; achenes 4-6 mm. long, cuneate, the outer 8-angled and 



U 3-awned, inner 4-angled, 4-awned ; awns barely half as^lonq as 



f the achene, retrorsely barbed, equaling the b-tooihed corolla. 



398 B connata Swamps and ditches, N. E. to Minn, and Mo. Sept. (Estab- 

 ■ lished in Eu.) Fig. 998. 

 Var. pinnata Wats. Leaves nearly all pinnately divided, the 5-7 divisions 

 sparingly incised; achenes 4-awned. — Hennepin Co., Minn. {F, L. Couillard). 



8. B. cirnua L. (Stick-tight.) Smooth or hispidulous, 

 2-7 dm. high ; branches short ; leaves lanceolate to linear- 

 lanceolate, acuminate, unequally serrate, connate at base; 

 heads erect in anthesis, short-pedunculate ; outer involucre 

 longer than the head; rays, when present, one half exceeding 

 the disk or longer; achenes wedge-obovate, 5-0 mm. long, 

 4-awned, 4-angled, retrorsely barbed, tuherculate on the angles, 

 and prominently many-nerved ; awns half as long as the achene, 

 shorter than the yellow 5-toothed corolla. — Wet places, 

 throughout. July-Oct. (Eu.) Fig. 999. — Very variable. 



9. B. laevis (L.) BSP. Smooth, erect, or reclining at base, 1 m. or less high ; 

 leaves lanceolate, tapering at both ends, sessile, rarely connate finely and regu- 

 larly serrate; outer involucre mostly shorter than the showy golden-yellow 

 (2-^ cm. long) rays; achenes 6-9 mm. long, wedge-shaped, retrorsely almost 



serrate on the margins; awns 2, 3, or 4, downwardly barbed, 

 barely f as long as the achene, and hardly equaling the yellow 

 6-toothed disk-corolla. {B. chrysanthemoides Michx.) — Swamps 

 near the coast, Mass., and southw.; also centr. N. Y. Aug.-Oct. 



10. B. bipinnata L. (Spanish Needles.) Smooth annual, 

 branched ; leaves 1-S-pinnately parted, petioled ; leaflets ovate- 

 lanceolate, mostly wedge-shaped at the base ; heads small, on 

 slender peduncles ; outer involucre of linear bracts equaling the 



1000 B bipin. ^hort pale yellow rays; achenes 4-g'rooved, nearly smootli, :i-4- 

 awned, very unequal. — Damp soil, K. I., westw. and southw.; 



occasional on ballast north w. Fig. 1000. 



11. B. coronata (L.) Fisch. Nearly glabrous, 3-9 dm. high ; leaves variable, 

 commonly 3-7 -divided, or all undivided, the segments incisely serrate or lobed ; 

 rays golden-yellow, showy ; achenes flat, 1-nerved on each 

 face, broadly cuneate, 3-4.5 mm. long, with 2 very short blunt 

 spreading teeth. {Coreopsis aurea Ait.) — Wet ground, Va. 

 to Fla. "Fig. 1001. 



12. B. trichosplrma (Michx.) Britton. (Tickseed Sun- 



flower.) Smooth, branched ; leaves short-peti- 



Vj oled, nearly all 3-7-divided ; leaflets lanceolate looi. B. coronata. 



M or lance-linear, cut-toothed, or the upper leaves 



'm only 3-5-cleft and almost sessile ; heads panicled-corymbose ; rays 



H conspicuous, golden-yellow ; achenes narrowly loedge-oblong or the 



1002 B trich ^^^^^^ ^^^^ wedge-Unear, 5-7 mm. long, smooth or sparsely hairy, 



marginless, crowned with 2 erect triangular or awl-shaped stout 



teeth. (Coreopsis Michx.) — Swamps, Mass. to \'a. near the coaist ; also N. Y. 



U) III. and Ky.; said to extend northwestw. to Miuu. Aug.-Oct. Fig. 1002. 



