t^ 



78 



J)iJ>YKA>IIA GyM^'OSPERML^ 



1. Radiata. 



vA' 



-k 



H. capitiilis opposi- 

 tis; bracteis lanceola- 

 tis calyce longioribus^ 

 foliis oblongo lanceo- 

 latis^ deiitatiSj basi at- 

 tenuatis. 



Heads of flowers 

 opposite; bracteas lan- 

 ceolate^ longer than 

 the calyx ; leaves ob-; 

 long lanceolate^ den- 

 tate^ tapering at base. 



Sp. pi. 3. p. 84. Puvsh 2. p. 408. 



Walt 



Root perennial somewhat creeping. Stem herbaceous, erect, 3 — 4 feet 

 Jneli 4-angledj pubescent, and somewliat scabrous near the suiiiniit 

 Leaves opposite, sessile, pubescent, dotted underneath, sometimes 2 or 3 

 cf the teetli very large^ the base very long and tapering. Flowers on ax- 

 illary heads, on long peduncles, the lower peduncles somethnes as long as 

 the internodcs, the upper ones much shorter. The involucrum nrxany 

 leaved (al)out 12) persistent, the leaflets generally in two series, unequal, 

 the exterior ones larger, but all much longer than the calyx. Calyx some- 

 what tubular, very pubescent, villous at base, the border 5-toothed, tlie 

 teeth long, linear, equal. Corolla white, a little sprinkled witji pwpk, 

 the lower lip 3-cleft, the lateral segments small and obtuse, the inter.medi- 

 -ate lono*, with a scale at base. Stamens shorter than the corolla. Jn- 

 ihers incimibent, reflexed. Stijle as long as the stamens. 

 4use. Seed A. oval. 



Stwma ob- 



^3 



Grows in damp soils in pastures, very common. 

 Floweis July to Sept<nnber* 



■M 



2. Cafitata. 



H. capjtulis opposi 



lis; pedunculo interno- 



cliis loiigiUidine 



? 



brac- 



teis lanceolalis^ calyce 

 frugifero brevioribus ; 

 foliis oblongis, utriii- 

 <juc aUenuatiS:,ina3qiia- 



liter senatis. 



Heads of flowers op- 

 posite;pedunc](^s long 

 as the internodes;brac- 



teas lanceolate, short- 

 ter than the calyx of 

 the fruit; leaves oblong? 

 tapering at each end; 

 unequally serrate. 



« 



Sp. pi. 3. p. S4. Mich. 2. 4). ^. Piirsh 2. p. 408. 



^"- 



t. 



