MONOECIA TRIANDRIA. 



571 



merulis axillaribus, ses 



ster of fl 



axil 



silibus. subglobosis, re- lary, sessile/somewhat 



flexis: caule stimuloso. 



? 



globose, reflexedj pric 

 kles stimulant. 



Pursh, 1. p. 112. Nult. 2. p. 20e, 



stem nearly simple, glabrous, four to six inches high. Leaves ovate, on 



short petiols, hairy underneath, sprinkled with a few hairs and white 



prickles on the upper surface, small, and for their size coarsely toothed. 



Flowers in compact axillary clusters scarcely longer than the petioles, the 

 upper florets fertile, the lower steiile. Calyx of both florets ^lairy. 



Collected on St. Simons, Georgia, by Mr. Lyon. 



Flowers February to March. 



4. DioicA. 



U. foliis oppositisjcor- 

 datis, ovato-lanceolatis, 



Leaves opposite, cor- 

 date, ovate lanceolate, 



grosse serratis; floribus coarsely serrate; flow 



dioicis; spicis panicida 

 tis, glomeratiSjgemina- 

 tis, petiolo longioribus. 



ers dioecious; 



spikes 



paniculate, by pairs 

 longer than the petiole; 

 flowers ckistered. 



■I 



Sp. pi. 4. p. 352. Mich. 2. p. 179. Pursh, 2. p. 113. Nutt. 2. p. 208. 



Stem branching and with the leaves and whole plant very hispid. Leaves 

 cordate, ovate, slightly acuminate; acutely and deeply serrate, nerved, on 

 petioles one to one and a half inches long* Flowers dioecious, (more fre- 

 quently monoecious, Mich.) in clustered panicles, two from each axil. 



In this species and in U. Urens the calyx of the fertile floret is four-leav- 

 ed, two leaflets ovate cordate, two others opposite, very small. Leers in 

 Sp. pL L c. 



Grows along roads and in waste places, from Canada to Carolina, Pursh. 

 I have not seen this species in the low country. 

 Flowers June — August. 



1 \ 



5. Procera. Muhl. 



U. foliis oppositis, o- I Leaves opposite, o 

 vato lanceolatis, serra- | vate-lanceolate 

 tis; petiolis ciliatis; flo- 



9 



ser 



ratcj petioles fringed 



? 



