738 PLANT LIFE OF ALABAMA. 
lilac purple to nearly white, yellow in the center, April. Perennial, from slender 
running shoots, 
Type locality: “ Hab, in Virginia.” 
Herb. Geol. Surv. Herb. Mohr. 
Houstonia minor (Michx.) Britton, Mem. Torr. Club, 5:302, 1894. 
SOUTHERN BLUETS. 
Houstonia linnaei var. minor Michx, Fl. Bor, Am, 1:85, 1808, 
H. patens E11. Sk. 1:191, 1817. 
Chap. Fl. Suppl. 625; ed.3, 199. Gray, Syn, Fl, N.A.1, pt.2:24, Coulter, Contr. 
Nat. Herb. 2: 158, 
Carolinian and Louisianian areas Southern Virginia, southern Tennessee from 
North Carolina to Florida, west to Texas. 
ALABAMA: Coast plain. Dry and damp light exposed ground, Mobile and Bald- 
win counties. Flowers cerulean blue; early in February, March, Common. Win- 
ter annual. 
Type locality: “Hab, in maritimis arenosis, a Virginia ad Floridam.” 
Herb. Geol. Surv. Herb. Mohr. 
Houstonia minima Beck, Am. Journ. Sci. 10: 262. 1826. SMALLEST BLUETS. 
Hedyotis minima Torr, & Gray, FI]. N. A. 2:38, 1841. 
Gray, Man, ed. 6, 223. Gray, Syn. FILN.A.1, pt. 2:25. Coulter, Contr, Nat, Herb. 
2 315, 
Carolinian area. Missouri, Arkansas, and Texas. 
ALABAMA: Mountain region. Dry grassy banks and hillsides. Madison County, 
Huntsville, 750 feet altitude. Flowers sky-blue; March. Rare, Annual. 
Type locality: ‘ Fields about half a mile west of St. Louis.” 
Herb, Geol, Surv. tierb. Mohr. 
Houstonia rotundifolia Michx. Fl. Bor. Am. 1:85, 18038. ROoOUNDLEAF HousTONIA, 
Oldenlandia rotundifolia Chap. Fl. 180, 1860. 
Ell. Sk. 1:193. Chap. Fll.c. Gray, Syn. FIN. A. 1, pt. 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, Mareh. Common, 
dense tufts. Perennial. 
An apetalous form, in dry sandy pine barrens. Flowers May and June, Frequent 
in the Coast Pine belt. Choctaw County, Bladen Springs. Escambia County near 
Flomaton. 
Type locality: ‘‘ Hab. in apricis submaritimis Floridae, et Carolinac.” 
Herb. Geol. Surv. Herb. Mohr. 
Houstonia purpurea L. Sp. Pl. 1: 105, 1753, PURPLE HousTONIA, 
Hedyotis purpurea Torr. & Gray, Fl. N. A.2: 40. 1841. 
Oldenlandia purpurea Gray, Man. ed. 2,173. 1856, 
Ell. Sk. 1:193. Gray, Man. ed. 6, 223. Chap, FI. 180. Gray, Syn. F1.N. A. 1, pt. 
2:26, 
Carolinian area. Maryland to Missouri and Arkansas, south to middle Georgia. 
ALABAMA: Mountain to Central Prairie region. Open woods, copses. Metamor- 
phic hills. Lee County, Auburn, 860 feet (Harle J; Underwood), Tuscaloosa County 
(E£..A, Smith), Montgomery County, wooded hills. Flowers pale rose-purple; April. 
Perennial. 
In the Alabama plant the corolla is scarcely double the length of the calyx. 
Type locality: ‘“ Hab. in Virginia.” 
Herb. Geol. Surv. Herb. Molir. 
Houstonia longifolia Gaert. Fruct, 1: 226, t. 49, f.8. 1788. LONGLEAF HOUSTONIA, 
Oldenlandia purpurea var. longifolia Gray, Man, ed, 2,173. 1856. 
Houstonia purpurea longifolia Gray, Syn. FIN. A. 1, pt. 2:26. 1884. 
Gray, Man. ed. 6, 223. Chap. F1.181. Gray, Syn. FIN, A. le. 
Canadian zone, Alleghenian and Carolinian areas. Canada to Saskatchewan ; 
New England west to Missouri and Arkansas, south from New Jersey along the 
mountains to Georgia, 
ALABAMA: Mountain region. Dry open woods. Lee County, Auburn (Larle 
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, 
Hedyotis longifolia var. tenuifolia Torr. & Gray, PLN. A. 2:40, 1841. 
Houstonia purpurea var. tenuifolia Gray, Syn. F1.N. A. 1, pt. 2:26. 18st. 
Gray, Man. ed. 6,224. Chap. I'l. 181. 
