464 



SYNGENESIA NKCESSARIA 



5. Perfoliatum. Lin. 



S. caule tetragono 



laevi 



? 



foliis oppositis 



9 



9 



5 



connatis, ovatis, serra 

 tis. 



Stem 

 smooth 

 site. 



5 



four-angledj 

 leaves oppo- 



connate, ovate 



) 



serrate. 



Sp, pi. 3. p. 2331- Purshj 2. p. 577- Nutt. 2. p. 183. 



Stem about six feet high, four-angled, smooth. Leaves opposite, ovate 

 or deltoid, serrate, opposite and perfoliate with decurrent petioles, the upper 



Peduncle terminal and from the axil of the 



Florets of the ray 



sessile, very broad, perfoliate. 



highest leaves. Involucrum squarrose, scales obtuse. 



twenty-four. Lin. 



Grows in the mountains, Pennsylvania to Carolina. Pursh. 

 Flowers July to October. 



4 



6. CoNNATUM. Lin. 



S. caule tereti, his 

 pido; foliis oppositis 



connatis, remote serra 

 tis, scabris. 



9 



Stem terete, hispid; 



con 



leaves opposite, 

 nate, remotely serrate 



scabrous. 



f 



Sp. pi. 3. p. 2332. Mich.* 2. p. 146. Pursh, 2. p. 578. Nutt. 2. p 



183. 



"■Stem about six feet high, erect, simple, terete, (obscurely angled near the 

 base,) scabrous with deflected hairs. Leaves opposite, connate perfoua ^ 

 ovate oblong, sessile, (not united by perfoliate petioles as the S. Perlo la- 

 tum) scabrous, rather acute, serrate. Panicle terminal, dichotomous. ^ 

 volucrum squarrose, the scale ovate, obtuse, smooth, reflected at the sum 

 Florets of the ray twelve. Lin. " ,. 



I have iised the description given by Linnaeus of this and the P*^*^^ .' ° 



species, because I had no specimens on which I could depend, or 

 which agreed with the Linnaean plant. 



Grows on the high mountains of Carolina, Pursh. 



Flowers August — September. 



rather 



^- 



^ 



