494 PLANT LIFE OF ALABAMA. 
ALABAMA! Central Pine belt to the Coast plain. Rich wooded bottoms. June; 
frequent. Common south of the Central Pine belt. 
Economie uses: The leaves valuable for braiding. 
Type locality: ‘(In Carolina.” 
Herb. Geol. Surv. Herb. Mohr. 
SERENOA Benth. & Hook. Gen. PI. 3:926. 1883. 
A single species, Southern Atlantic States. 
Serenoa serrulata (Michx.) Benth. & Hook. Gen. P].3:926. 1883. Saw PALMETTO. 
Chamaerops serrulata Michx. F1. Bor. Am. 1: 206, 1803. 
Ell. Sk.1:431. Chap. FI. 438; ed. 3, 462. 
Louisianian area. South Carolina to Florida, west to Louisiana. 
ALABAMA: Coast plain. Sandy flat pine barrens, on the islands and all over the 
Coast plain. June; frequent. Shrub. 
Economic uses: The ripe drupes are used medicinally; the tiber of the stems is 
used in place of hair in plaster; brushes are made from the roots, and tannin is 
extracted from the leaves. 
Type locality: ‘‘ Hab. in maritimis Carolinae et Georgiae.” 
Herb. Geol. Surv. Herb. Mohr. 
RHAPIDOPHYLLUM H. Wendl. & Drude, Bot. Zeit. 34:803. 1876. 
One species. Southeastern North America. 
Rhapidophyllum hystrix H. Wendl. & Drude, Bot. Zeit. 34:803. 1876. 
BLUE PALMETTO. 
Chamaerops hystrix Fraser; Pursh, F1.1:240. 1814. 
Chap. FL. 438; ed. 3, 463. 
Carolinian and Louisianian areas. South Carolina, Florida. 
ALABAMA: Southern edge of Metamorphic hills. Lowshady woods. Lee County, 
Auburn (Earle §* Tracy, 1899). Only locality known in the State. 
Type locality: ‘Near the town of Savannah, Georgia.” 
* 
ARACEAE. Arum Family. 
ACORUS L. Sp. Pl. 1: 324. 1753. 
Two species, temperate regions, Europe, Asia; North America, 1. 
Acorus calamus L. Sp. Pl. 1:324. 1753. SWEET FLAG. CALAMUS, 
Ell. Sk.1:403. Gray, Man. ed. 6,551. Chap. FI. 442. 
Canadian zone to Louisianian area. Canada to Saskatchewan and through the 
United States east of the Mississippi River, west to Nebraska and Kansas. 
Europ. 
ALABAMA: Scattered over the State. Borderof swamps, Mobile and Montgomery 
counties. Perennial. 
Economic uses: The root forms the ‘‘sweet flag root” or “Calamus” of the U.S. 
Pharmacopceia. 
Type locality: ‘“‘Hab.in Europae * * * fossis paludosis.” 
Herb. Geol. Surv. Herb. Mohr. 
ORONTIUM L. Sp. PI. 1:324. 1753. 
Single aquatic species. Atlantic North America. 
Orontium aquaticum L. Sp. Pl. 1:324. 1753. GOLDEN CLUB. 
Ell. Sk.1:404. Gray, Man. ed. 6,551. Chap. Fl. 442. 
Alleghenian to Lousianian area. Southern Massachusetts to Florida, west to east- 
ern Texas and southern Missouri. 
ALABAMA: Over the State. In still-flowing water; ponds. Clay County, Shin- 
bone Valley, 1,000 feet. Cullman County. Mobile County, February 15. Common. 
Perennial. 
Type locality: “Hab. in Virginiae, Canadae paludibus scaturiginibus.” 
Herb. Geol. Surv. Herb. Mohr. 
