154 STNGENESIA. SUrERFLiTA, 



Jl. Traclescciiti, Jl, recuyvatiis, Ji. e7mncns, ^1- laxus, »? 

 polyphyUus^ Jl. jnnceiis. A- lunceolahis, .i. draauiculoidesf^ 

 ^i.fru^ilis, A. miser, A. divergeiiSy A. diffitsus, and A. pen- 

 duhiSy are a host of polymorphous varieties wliich may be 

 reduced too oi' 4 species!) 



f Leaves entire. 

 Species. 1. A. hyasopifoUus. 2. soUdaginoides. Rays 

 often 8. 3. tortifolius. 4. nemorali^^ A. Icdi/oliuSf Ph. 

 Leaves linear-lanceolate, attenuated at the base, partly 

 scabrous; branches filiform, fastigiate, 1 -flowered; calix 

 loosely imbricated, hemispherical, leaflets acute; ra}S nu- 

 merous. Hab. In the swamps of New Jersey, somewhat 

 vare. Stem simple, 12 to IS inches high, fragile and 

 thickly set with leaves, which are somewhat revolute on 

 the margin, and now and then minutely bidentate; flower 

 large and pale violet. 5. grcunini/oUns, Ph. 



6. * pancifioviis. Stem low and simple,, few-flowered, 

 (3 to 6); leaves linear and smooth, those of the stem sub- 

 ulate and subamplexicaule; peduncles axillar and termi- 

 nal, about 1 -flowered, and in common with the calix vis- 

 cidly pubescent. Hae. On the margins of saline springs, 

 xjear Fort Mandan, on the Missouri. Flowering in Au- 

 gust. Stem 6 to 12 inches high, on the lower part v^ry 

 smooth. Radical leaves long and linear, somewhat car- 

 nose, channelled. Fedimcles rarely perfecting more than 

 1 flower. Calix hemispherical, about equal with the disk; 

 leaflets nearly all equal and acute. Radial florets about 

 15, white, lanceolate-oblong. Pappus scabrous. 



7. *fexuosiis. A. sparsifiorus? pn. 2. p. 547. Very 

 smooth: stem low and flexuous, subdichotomous; leaves 

 very long and thick, lower ones partly lanceolate-linear, 

 acute, attenuated downwards, upper subulate, all erect; 

 ramuli 1-flowered, subfastigiate, leafy; scales of the calix 

 lanceolate, acuminate, appressed; rays numerous, shorter 

 tiian the calix. Hab. In the salt-marshes of New Jersey 

 and New York. Perennial: stem from 6 to 18 inclies 

 high, generally flexuous; leaves smooth on the margin; 

 branches axillary, often commencing from the base, sim- 

 ple or subdivided, often 2-flowered. Flowers few and 

 large, the rays whitisli, or pale purple, oblong and ra- 

 ther short. Florets of tlie disk very numerous. Pappus 

 capillary; seed nearly smooth, with 5 strix. 



8. mbulutus. Annual; smooth, and small -flowered; stem 

 fistulous, and branched from the base; branches panicu- 

 lated, ramuli subracemose; leaves long and linear, very 

 acute, with the margin scabrous, uppermost subulate; 

 calix subcyliiidric, scaks subulate; radial fiorsts minute 



