74(^ TLA NT MFK (>K A LA l?AM A. 



SPERMACOCE I,. Sp. 1»1. 1:101'. 17".:!. 



Eighty Hl)ecit's, low licrlis, tropical n'gidiis. inostlv .Viiicricaii. 

 Speimacoce glabra Mii-hx. Kl. I'.or. \u\. 1 : K2. 180:i SMornii Huitonwkkd. 



(Jray, Man. .d. (I, L'L'."). Cbaii. Fl. 171. (Jray. Syii. Fl. N. A. l,i>t.L'::M. Coulter, 

 Coiitr. Nat. Herb. 2: l»;i. 



(aroliuiau and Loiiisiaiiian areas. Southern Oliio ami \v('siern Teuuesseo to 

 Florida, TcxaH, and Arkau,sas. 



Alahama: i.owor I'ine region. Coast jdain. Low lields, bottom lands. Wasb- 

 ingtou, Mobile, and Baldwin eonntien. Flowers wbitt;; August to October. Not 

 couiuion. Annual weed. 



'i\vi)e locality: " llab. ad ripas lluminiK Ohio et Mississippi.' 



Herb. Geol. (Surv. Herb. Mohr. 



Spermacoce parviflora (Meyer) Gray, Syn. Fl. N. A. 1, pt. 2 : 'M. 1S7S. 



SMAI.I.-I'I.OWKUKIj HlTTONWKKI). 



liorreria imrvillora Meyer, Prim. Fl. Es8e(iuib. 8:3, 1818. 

 /;. mieraniha torr. A- Gray, Fl. N. A. 2 : 1'8. 1841. 

 Chap. Fl. 175. Gray, Syu. Fl. N. A. 1. c. 

 Wkst Indiks, Mkxico, South A.aikkica. 

 Loulsiauian area. Sontbern Florida. 



Alahama: Lower Pine region. Waste places. Monroe County, Mount Pleasant 

 {E. A. Smith). Annual. 

 Type locality : "llab. in St. l^omingo et berbario clariss. Mcrtensii inest." 

 Horb. Geol. Surv. Herb. Mohr. 



RICHARDIA L. Sp. PL 1 : 3:50. 175:L 

 (RiCHAiaxsoNiA H. B. K. Nov. (;en. & Sp. 3 : 3.50. 18l.'().) 

 Ten si)ecies, low annuals or perennials, mostly tropical America. 

 Richardia scabra L. Sp. PL 1 : 3:jO. 1753. Mexican Cu»vi:ii. 



IHdiardsonia scabra St. Hilaire, PL Us. Bras. 8, t. S. 1824-28. 



Chap. Fl. Suppl. (524 ; ed. 3, 194. Gray, Syn. Fl. N. A. 1, pt. 2 : 32. 



West Indies, Mexico to Buazil. 



Lonisiiiuian area. Adventive I'rom the Tropics and fully naturalized on the coast 

 of Georgia, in Horida, and thence to Mississippi. 



Alai'.ama: Lower Pine region. Coast plain. Dry sandy waste j)lace8. Flowers 

 white; .June to October and November. Abundant in cultivated ground. A luxu- 

 riant annual; assnrgent stems 2 to 3 feet long. Occasionally in the northern part of 

 tlie State, in gardens. Cullman County. 



Economic uses: \'aluable fodder plant. 



Tyjje locality : " Hab. in \'era Cruce." 



Herb. Geol. Surv. Herb. Mohr. 



DIODIA L. Sp. PL 1 : 104. 17.53. 



About 30 species, annual or perennial low herbs, mostly of tropical America. 

 Diodia virginiaua L. Sp. PL 1 : 104. 1753. Co.M-aion Bliton F'iower. 



Diodia tetragona Walt. Fl. Car. 87. 1788. 



EIL Sk. 1 : 190. Gray, Man. ed. 6, 225. Chap. Fl. 175. Gray, Syn. Fl. N. A. 1, pt. 

 2 : 35. Coulter, Contr. Nat. Herb. 2 : 161. 



Carolinian and Louisianian areas. New Jersey tbrougb the lower country to 

 Florida, west to Texas and Arkansas. 



AlahAiMa : Over the State, except the highest mountain ranges. In low culti- 

 vated ground, waste places, roadsides. Clay County, Delta, 1,700 feet. Cullman 

 County, 800 feet. Flowers white; June to October. Abundant weed. Perennial. 



Ty]ie locality: "Hab. in \'irginiac aquosis." 



Herb. Geol. Surv. Herb. Molir. 



Diodia teres Walt. Fl. Car. 87. 1788. Purple-flowered Buttonweed. 



Spermacoce diodina Michx. FL Bor. Am. 1 : 82. 1803. 



Gray, Man. ed. ti, 225. Chap. FL 176. Gray, Syn. FL N. A. 1, pt. 2 : 35. Coulter, 

 Contr. Nat. Herb. 2 : 162. 



