624 PLANT LIFE OF ALABAMA. 
Alleghenian to Louisianian area, Labrador to New England, west to Michigan and 
Nebraska, south to the Gulf and from Florida to Louisiana. 
ALABAMA: Central Pine belt to Coast plain. Low wet places. Autauga and 
Mobile counties. Flowers pink, July; not infrequent. Perennial. 
Type locality: ‘‘Hab. in Pensylvania,” 
Herb. Geol. Surv. Herb. Mohr. 
CISTACEAE. Rock Rose Family. 
HELIANTHEMUM Pers. Syn. 2:75. 1805. 
One hundred and ten species, warmer regions of Europe, mostly Mediterranean 
and American; Mexico to Brazil. North America, 10. Ours small, slender shrubs. 
Helianthemum carolinianum (Walt.) Michx. Fl. Bor. Am. 1:307. 1803. 
CAROLINA ROCK-ROSE. 
Cistus carolinianus Walt. Fl. Car. 152. 1788, . 
Ell. Sk. 2:5. Chap. FL 35. Coulter, Contr. Nat. Herb. 2: 24. 
Louisianian area. Florida to North Carolina, west to Texas. 
ALaBAMA: Lower Pine region. Coast plain, dry sandy pine barrens. Mobile and 
Baldwin counties. Flowers bright yellow, large; March, April, Frequent. 
Type locality: South Carolina. 
Herb. Geol. Surv. Herb. Mohr. a 
Helianthemum arenicola Chap. Fl. 35. 1860. SEASIDE ROCK-ROSE. 
Chap. Fl. 35. Gray, Syn. Fl. N. A. 1, pt. 1: 190. 
Louisianian area. Western Florida to Mississippi. 
ALABAMA: Littoral region. Drifting sand near the seashore. Baldwin County, 
Point Clear. Flowers yellow, April, May. Not frequent. The woody lower part of 
the stems buried in the sand. 
Type locality: ‘‘ Drifting sands near the coast, West Florida.” 
Herb. Geol. Surv. Herb. Mohr. 
Helianthemum georgianum Chap. Fl. ed. 3, 36. 1897. GEORGIA ROCK-ROSE. 
Louisianian area. Georgia, eastern Florida (St. Augustine, Garber), eastern Mis- 
sissippi (Columbus, Mohr) to western Louisiana (Hale). 
ALABAMA: Coast plain. Sunny hillsides in poorsandy soil. Mobile County, footof 
Springhill. Baldwin County, Montrose. Flowers yellow (canary), May, June. 
Local. Infrequent, but abounding at the locality covering large patches with Opuntia 
rafinesqii and Cenchrus tribuloides. 
Shrublet 8 to 10 inches high, widely branched above the base, flowers } inch wide, 
distant or more or less crowded. 
Type locality: ‘‘Hab. in Georgia, Carolina.” 
Herb. Geol. Surv. Herb. Mohr. 
Helianthemum rosmarinifolium Pursh, Fl. Am. Sept. 2:364. 1814. 
Ell. Sk.2:6. Chap. Fl. ed. 3, 36. 
Louisianian area. Georgia to Mississippi. 
ALABAMA: Central Prairie belt. Dry sandy banks, Dallas County, near Selma, 
August, 1899 (Biltmore Herb.). 
Type locality: ‘‘In pine barrens: Georgia. nslen.” 
rs 
LECHEA L.Sp.P1.1:90. 1753.! 
Atlantic North America 14, perennial herbs. 
Lechea minor L. Sp. Pl.1:90. 1753. TuyME-LEAF LECUEA. 
Lechea thymifolia Michx. Fl. Bor. Am.1:77. 1803. 
Lechea novae-caesareae Aust. ; Gray, Man. ed.5, 81. 1867. 
Ell. Sk.1:185. Gray, Man. ed. 6,677; Syn. F1.N. A.1, pt.1:192. Chap. F1. ed. 3, 37. 
Alleghenian, Carolinian, and Louisianian areas. Coast of New England to Michi- 
gan, south to Florida, west to Mississippi. 
* ALABAMA: Mountain region, Coast plain. Dry exposed places. Cullman County, 
800 feet. Baldwin County, eastern shore of Mobile Bay. Mobile County, open dry 
pine woods. August to October. Frequent near the coast. 
Type locality: ‘Hab. in Canadae sylvis glareosis.” 
Herb. Geol. Surv. Herb. Mohr. 
Pa rr ai A revision of the genus Lechea, Bull. Torr. Club, vol. 21, pp. 244 to 
