ERYTiiRiEA. C. GENTIANACEiE. 451 



lanceolate- cvmc fastigiate, terminal; scp. linear, 3 times shorter than the 

 corolla • cor 5-G-parted, white, lobes obovate-oblong, obtuse.-Pine barrens, 

 N 'J to Ga. Stem a foot high, branching near the summit. Leaves an inch 

 in'leiigth, closely sessile. Flowers few, generally pentamerous. 



3 S coNciNNA. Wood. {Nov. sp.) Elcsant Star Flower. 



St slender, sabquadrangular, internodes -2— 4 times longer than the leaves ; 

 branches opposite, suberect; Ivs. linear and lance-linear, lower ones ovate, all 

 acutish, sessile; panicle oblong; cal. segments linear, twice longer than the 

 tube twice shorter than the corolla ; cor. 5-parted, segments oblong-obovate, 

 ohtn'=;p lio-ht nurnle — Dry, grassy prairies, la.! abundant. Stem a loot high, 

 ?'w or\i^.?ny-ffw&. L^'ales l^' by -3" Flowers 15" diam., of adeli- 

 cate blush-purple, the star in the centre' yellow, bordered with green. Jl. Aug. 



4 S. STEI.LARIS. Ph. (S. gracilis. Ell. Chironia amoena. Raf) 



St erect, terete ; ArawcAcs dichotomous, elongated, 1-flowered; te lanceo- 

 late acute se^. of the cal. subulate, half as long as the corolla; seg. of the cor. 

 obovate -Frequent in salt marshes, N. Y. to Flor. Stems somewhat angular, 

 13_18''hi<-h with many forked divisions, forming a sort ot loose corymb. 

 Leaves somewhat fleshy, 1-2' long, sessile. Flowers rose-color, with a yellow 

 star in the centre bordered with a purple ring. Aug. 



5 S. CALYCo.'5A. Ph. (Chironia dichotoma. Walter.) 



St erect leafy, few-flowered; Irs. oblong, 3-veined, obtuse; /5. solitary, 

 7_9.parted : cal. leafy, longer than the corolla ; pet. oblanceolate— Fields and 

 meadows N. Y. to Ga. Stem a ibot high, subangular, with a few axillary, 

 spreading branches. Leaves l_2' long, sessile, mostly obtuse, oval thin Flow- 

 ers lar^e terminal, often solitary, variable in the number of its parts, but mostly 

 in 7s. "corolla pink-colored. Sepals acute. This species is quite variable. 

 G S ANGULARis. Ph. (Chirouia. Linn.) Angular-stemmed Star FI-. 

 St. quadrangular, with winged angles; Ixs. ovate amplexicaul5-veined; 

 vanicle corymbose; ped. elongated; sci^. lance-linear, half as long as the corolla 

 dSnct almost to thf base ; cor. segments obovate, obtuse.-Wet meadows and 

 pra rTes Can. to Car. and Ark. Stem 10-18' high, much branched, branches 

 EpposS Leaves closely embracing the stem, 1-2' byJ-U' as long as the 

 internodes or often shorter. Flowers numerous, U-U' diam., deep rose-color, 

 the star in the centre greenish. July, Aug. 



7 S. cnLORoiDES. Ph. (Chironia dodecandra. Linn.) 

 si slender, weak, angular ; Ivs. lanceolate, erect ; brandies few, l-flower- 

 pA . ij. 7— 12-T)arted ; sep. linear, shorter than the corolla.— An elegant plant, 

 with l^ge, shovvj^ flowers, in wet grounds, Mass., R. I. ! to Car. The stem is 

 2— 3f high somewhat angular, with few, opposite, spreading branches. Leaves^ 

 1—11' long opposite, entire, smooth, closely sessile, acute, veinless. Flowers 

 solitary temiinal. Corolla nearly 2' diam., much larger than the calyx, bright 

 purple With a yellow base, segments spatulate, roimded at end, varying in 

 number with the other parts of the flower. June. 



Ohs. The species of this genus are very ornamental, some of them perhaps among the most beautifiU 

 of our native plants. „ „ . ^^ , 



2. ERYTHEMA. Renealm. 

 Gr. EpuS-poj red ; from the color of the flowers. 



Calyx 5, rarely 4-parted ; cor. infundibuliform, twisted and wither- 

 ini? above 'the capsule, tube cylindric, limb 5— 4-parted ; sta. 5—4, 

 inserted near the top of the tube ; anth. exserted, spirally twisted ; 

 sty 1 • stig. bilamellate or capitate ; caps. 2-valved, 1 or partly 2- 

 celled.-^® St. subangular. Lvs. connate at base. Fls. cymose, roseate, 

 white or yellow. 



1 E MuHLENBERGii. Griseb. (E.Centaurium.l?cci'? E. pulchella Hook. 



Chironia dubia. Willd.)—St. simple below, dichotomously branched above ; 

 lvs. ovate-oblong, obtusish; c7/mes loose, dichotomous ; fls pedicellate; cor tube 

 a little longer than the calyx, segments oblong-lanceolate, acutish.— i\. Y., 

 Penn Very rare. Stem 3—8' high, 1—3 times forked, sometimes with oppo- 



