PLOWBBING PLANTS AND PBBN8 OF INDIANA. 841 



CISTACEiE. Rock-rose Family. 



HELIANTHEMUM. 



H. Canadense (L.) Michx. Frost- weed. 



Occurring more abundantly in the northern part of the State, 

 though extending into the southern counties. The flowering sea- 

 son extends from June in the southern counties, through August 

 in the northern. Late in the fall, crystals of ice shoot out from 

 the cracked bark near the root, a fact explaining the popular 

 name. 



Kosciusko (Coulter); Yigo (Blatchley); Cass (Hessler); Elk- 

 hart (Barnes); Noble (Yan Gorder); St. Joseph (Rothert): Clark 

 (Baird and Taylor). 



HUDSONIA L. 

 H. TOMENTOSA Nutt. 



A sand-loving plant confined to the shores of Lake Michigan 

 and rarely extending far inland. Reported from Lake County by 

 E. J. Hill, and as a member of the dune floras of Lake and Porter 

 counties by Dr. H. C. Cowles. 



LECHEA Pin weed. 

 L. MINOR L. 



(£. thymifolia Michx.) 

 An insignificant perennial growing in dry, sterile ground. 

 Lake (Hill); Cass (Hessler); Vigo (Blatchley); Steuben 

 (Bradner). 



It seems to be more abundant in the northern counties. 



L. villosa Ell. 



(L. major Michx.) 



Another form found in dry, sterile situations, with its more 



abundant .local distribution in the southern portion of the State. 



Lake (Hill): St. Joseph (Rothert); Cass (Hessler); Kosciusko 



(Coulter); Clark (Baird and Taylor): Dubois (Barnes): Steuben 



(Bradner). 



L. maritima Leggett. Beach Pin-weed. 



(L. minor maritima Gray.) 

 In sandy pine-barrens. This has been reported from Lake 

 County by Rev. E. .7. Hill. 



