7.SS I'l.ANT Mil-: i>V ALABAMA. 



lilac ]iiir]»li' to luMily wliitc, yt'llow in tlii' ctiitii. AjHii. r<T<iiiii:il. fniiii hlt'iidi r 

 riiiiiiiiiji shoots. 



Tjiui locality : " Hal>. in \ ir;j;iiiiii." 



Herb. (ieol. Siirv . llcrh. Molir. 



Houstonia minor (Miclix.) I'.rittoii, Mom. Torr. (Mult, 5:'M^'2. 1804. 



SOUTHKKN JiM'KTS. 



Honnioniii Unnaci var. minor Michx. Fl. Hor. Am. 1:8."). 1S(W. 



n. painiH Kll. Sk. 1:191. 1817. 



Chap. Fl. Siipj)l. G-J-}; ed. :^. 199. Gray, Syn. Fl. N.A.I. i)t. L':LM. Coulter, Coiitr. 

 Nat. ll.rl). 2: l.")S. 



Carolinian and Luuisianian areas Southern \'ir<iinia, southern TeiincHHee from 

 North Carolina to Florida, west to Texas. 



Ai.AitAM.\: Coast plain. Dry and damp lij^ht ex|)08eil i,'roniid. .Mohilcaud Bald- 

 win counties. Flowers cerulean blue; early in February, .March. Common. Win- 

 ter annual. 



Ty])e locality: "Ilab. in maritimis arenosis, a N'irginia ad Fhuidam." 



lierb. Geol. 8urv. Herb. Mohr. 



Hou.5tonia minima Heck, Am. Jouru. Sci. 10:262. 182t). Smallkst Hi.ckts. 



Urdyotis minima Torr. vV- Gray, Fl. X. A. 2:38. 1841. 



Gray, Man. ed. 6, 223. Gray, Syn. Fl. N. A. 1, pt. 2 : 27>. C<uilter, Contr. Nat. Herb. 

 2:l.oS.' 



Carolinian area. Missouri, Arkan.sas, and Texas. 



Ai.ahama: Mountain reji^ion. Dry grassy banks and hillsides. Madison ("ouuty, 

 Huntsville, 7.")0 feet altitude. Flowers sky-blue; March. liarc. Annual. 



Ty])e locality: " Fields about half a mile west of St. Louis.' 



Herb. Geol. Surv. Herb. Mohr. 



Houstonia rotundifolia Michx. Fl. Hor. Am. 1:85. 1803. Roundleak Hor.sTOMA. 



Oldenlandia rotundifolia Chap. Fl. 180. 1860. 



Ell. Sk. 1 : 193. Chaj). Fl. 1. c (hay, Syn. Fl. N. A. 1, yt. 2 : 25. 



Louisianian area. South Carolina to Florida, west to Louisiana. 



Alabama: Lower Pine region. Coast plain. Sandy damp or wet pine barrens. 

 Mobile and Baldwin counties. Flowers white; early February, March. Common; 

 dense tufts. Perennial. 



An apetalons form, in dry sandy pine barrens. Flowers May and June. Frecjuent 

 in the Coast Pine belt. Choctaw County, Bladen Springs. Escambia County near 

 Flomaton. 



Type locality: "Hab. in apricis submaritimis Floridae, et Caroliuae." 



Herb. Geol. Surv. Herb. Mohr. 



Houstonia purpurea L. Sp. PI. 1: 105. 1753. Plui'LE HousTf)NiA. 



Hedyotis purpurea Torr. & Gray, Fl. N. A. 2: 40. 1841. 



Oldenlaiidia jyurpurca Grav, Man. ed. 2, 173. 1856. 



Ell. Sk. 1: 193. Gray, Man. ed. 6, 223. Chap. Fl. 180. Gray, Syn. Fl. N. A. 1, pt. 

 2:26. 



Carolinian area. Maryland to Missouri and Arkansas, south to middle Georgia. 



Alab.\ma: Mountain to Central Prairie region. Open woods, copses. Metamor- 

 phic hills. Lee County, Aubui'u, 860 feet (Earle <y- I'liderwood). Tuscaloosa County 

 (K. J, Smith). Montgomery County, wooded hills. Flowers pale rose-purple; April. 

 Perennial. 



In the Alabama plant the corolla la scarcely double the length of the calyx. 



Type locality: " Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



Houstonia longifolia Gacrt. Fruct. 1:226, i. 4.9,/. ,S\ 1788. Longleak Houstonia. 



Oldrnlaudin purpurea var. loiujifolia Gray, Man. ed. 2, 173. 18.56. 



Hou-tlvuia purpurea loui/ifolia (iray, Syn. Fl. N. A. 1, ]tt. 2: 26. 1884. 



Gray, Man. ed. 6, 223. Chap. Fl. 181. ' Gray, Syn. Fl. N. A. 1. c. 



Canadian zone, Allegheniau and Carolinian areas. Canada to Saskatchewan; 

 New England west to Missouri and Arkansas, south from New Jersey along the 

 mountains to Georgia. 



Alaba.ma : Mountain region. Dry open woods. Lee County, Auburn {Earle i^'- 

 Underwood, 1896). Flowers purplish; April. Rare and local. Perennial. 



Type locality not given. 



Herb. Geol. Surv. 

 Houstonia tenuifolia Nutt. Gen. 1:95. 1818. Narrow-leaf Houstonia. 



Ihdijotis lougifolia var. tenuifolia Torr. & Gray, Fl. N. A. 2 : 40. 1841. 



HouHtonia purpurea var. tenuifolia Gray. Syn. Fl. N. A. 1, ]tt. 2:26. 1884. 



Gray, Man. ed. 6, 224. Chap. Fl. 181. 



