340 



SYNGENESIA SUPERFLUA. 



ASTER. Gen. Pl. 1291. 



^ 



Involucrum imbrica 



L 



Involucrum 



imbri- 



tum, squamis inferioi i- cate, with the lower 

 bus patulis. Corollul(B scales expanding. Flo- 

 radii plures 10 (rarissi- rets of the ray gene- 



me pauciores.) 



Pa]p- 



rally 



more 



than 10. 



'pus simplex, pilosus. I Pappus simple, hairy. 

 Receptaculum nudum. I Receptacle naked. 



^ Scales of the invo- 

 lucrum white^ ivith the 



* Invo lu cris 



a 



Ibis 



apice viridibus; carol- 

 lulls radii 5, albis. 



summits green; florets 

 of the ray 5, white > 



1. SoLiDAGirvoiDES. Mich. 



A? foliis lineari-lan 



Leaves linear-lance 



ceolatis, inteserrimis, elate, entire, scabrous 



margine scabns; flori- along the margin; flow 

 bus sessilibus,aggrega- ers sessile, aggregate; 



tis; involucris imbrica- involucrum imbricate 



tis, 



squamis obtusis, with the scales obtuse 



5 

 ) 



appressis 



appressed. 



Sp. pl. 3. p. 2024, Pursh, 2. p» 543. Nutt 2. p. 

 Aster Solidagineus. Mich. 2. p. 108. 

 Conyza Linifolia. 



- ! 



Walt ^ 



Root perennial. Stem about two feet high, slightly angled, glabrous- 

 LeaveSy as in all of this genus alternate, sessile, two to three inches long, 

 almost linear, obscurely three-nerved. Flowers in small clusters at the suni- 

 mits of the branches, forming a fastigiate corymb. Involucrum cylindrical, 

 scales obtuse, with the green summits slightly reflected. Florets of the ray 

 generally five, narrow, twice as long as the involucrum, of the disk twelve 

 to fifteen, white, longer than the involucrum. Stamens about as long as the 

 corolla. Sti/le scarcely longer than the stamens, two-cleft. Seeds oblong, 

 slightly angled, covered with a silken pubescence. Re€ej)tacle naked. 



Grows in damp rich soils. 



Flowers July — September. 



