310 



SYNGENESIA AIQUALIS 



1. Atriplicifolia. 

 C. caule herbaceo 



Stem 



herbaceous 



5 



foliispetiolatis, glabris, leaves on petioles, gla 

 subtus slaucis, radica- brous, glaucous under 



libus cordatisj dentatis, neatli, those of the root 



caulinis rhombeis utrin- cordate, toothed, of the 

 que subdentatis; flori- stem rhomboidal,slight- 

 bus corymbosis, erect- I ly toothed on each side; 



• • ll•^-/^• 1/1 • ^ 1^^ 



is; involucris 5-floris. 



flowers 



m 



corymbs 



9 



erect; involucrums 5 



5 



flowered* 



Mich. 2. p. 96. Pursh 



I 



518. 



J 



Sp. pi. 3. 1737- Walt, p- 195. 

 Nutu 2. p. 137. 



Root perennial. Stem erect^ three to eight feet high, branching, glabrous 

 somewhat glaucous- Leaves cordate, almost reniform, the upper ovate, 

 rhomboidal, and lanceolate, all sinuate, with the summits of the lobes acute, 

 sometimes dentated and glaucous underneath. Flowers in small terminal 

 corymbs. Peduncles almost white, clothed with small subulate pale or 

 colourless scales. Involucrum composed of five equal, linear, three-nerved, 

 glabrous, colourless leaves, containing five flowers. Corolla tubular, whit- 

 ish, tinged a little with purple. Stj/les bifid. Stigmas glandular. Seed 

 oblong, glabrous, obovate. Pappus hairy, scabrous, very white. Recep' 

 tacle naked, with an irregular angular somewhat glandular mass in the cen* 

 tre. This mass, composed perhaps of soldered scales, is generally three- 

 cleft at the summit, curved at base, as if embracing the stems of the florets, 

 but of three more distinctly than the other two. 

 Variety Angulata. 



I have specimens collected in St. Thomas^ and in the middle districts of 

 Carolina, in which the leaves are nearly round, deeply and acutely divided 

 into seven or more lobes, the lobes sometimes dentate, in other respects 

 agreeing with this species. 

 Grows generally in rich soils- 

 Flowers July — September. 



h ,v 



.m 



2. OvATA. Walt. 



C. caule herbaceo; 

 foliis ovatis^ obtusis, 

 obtuse-dentatis, nervo- 

 sis, subtus subglaucis, 



Stem 



herbaceous: 



leaves ovate, obtuse, 

 obtusely toothed, nerv 



cd, slightly glaucous 



4 



