PINE FAMILY. 323 



Subkingdom SPERMOPHYTA. True Flowering and 

 Seed-bearing Plants. (Phanerogamae.) 



Class GYMNOSPEEMAE (AEOHISPEEMAE), 



PINACEAE (CONIFERAE). Pine Family 

 PINUS L. Sp. PI. 2 : 1000. 1753. PINE. 



Largest genus of the order, with about 75 species belonging to the cooler anc? 

 warmer parts of the northern temperate zone. In the Old World about 25 species; 

 in the New World about double that number. North America has 37 species, 

 Eastern North America, 11. Mostly gregarious trees of large size. 



Pinus taeda L. Sp. PI. 2 : 1000. 1753. 



LOBLOLLY PINE. OLD FIELD PINE. ROSEMARY PINE. 



Ell. Sk. 2 : 636. Gray, Man. ed. 6, 490. Chap. Fl. 433. Coulter, Contr. Nat. Herb. 

 2 : 554. 



Carolinian and Louiaianian areas. Delaware to North Carolina and Florida west 

 to eastern Texas and southern Arkansas. 



ALABAMA : Mountain region to Coast plain. From the coast to the Warrior table- 

 land. Cullman County, 800 feet. Flowers early to latter part of March. 



Type locality: "Hab. in Virginiae, Canadae palndosis." 



Economic uses: Important. Valuable timber tree; the largest among the South- 

 ern timber pines. 



Herb. Geol. Surv. Herb. Mohr. 



Pinus heterophylla (Ell.) Sudworth, Bull. Torr. Club, 20:45. 1893. 



SLASH PINE. CUBAN PINE. 



Pinus taeda var. heterophylla Ell. Sk. 2 : 636. 1821. 



P. cubensis Griseb. Mem. Am. Acad. 8, pt. 2:530. 1863. 



P. elliottii Engelm. Trans. St. Louis Acad. 4: 186, t. 1-3. 1878-1886. 



Chap. Fl. Suppl. 650; ed. 3, 457. 



CUBA, BRITISH HONDURAS. 



Louisianian area. Coast of South Carolina to Florida, and along the Gulf coast 

 to eastern Louisiana. 



ALABAMA: Outlying islands, Coast plain, and scatteringly throughout the Lower 

 Pine region in the Hat woods and swamps bordering the pine-barren streams. Mobile 

 and Baldwin counties. Washington County, Yellowpine. Escambia County, Wal- 

 lace. Flowers January and February. 



Type locality: "Along the marshes near the mouths of the fresh water rivers, (at 

 least in Georgia), this pine is very common." 



Economic uses: Of greatest value for its timber and for its resin. 



Herb. Geol. Surv. Herb. Mohr. 



Pinus palustris Mill. Gard. Diet. ed. 8, no. 14. 1768. 



LONGLEAF PINE. SOUTHERN YELLOW PINE. PITCH PINE. HEART PINE. 



Pinus australis Michx. f. Hist. Arb. Am. 1 : 64, t. 6. 1810. 



Ell. Sk. 2 : 637. Gray, Man. ed. 6, 491. Chap. Fl. 434. Coulter, Contr. Nat. Herb, 

 2 : 554. 



Louisianian and Carolinian areas. From Cape Canaveral and Bay Biscayne, 

 Florida, north along the coast to southern Virginia (Suffolk County), and westward 

 to the Trinity Valley, Texas. 



ALABAMA : Coast plain to the Mountain region to an altitude of near 2,000 feet, 

 forming the immense forests of the Coast and Central Pine belt, and lesser ones in 

 the Coosa Valley. From Talladega County to the Georgia and Alabama State line. 

 Scattered abundantly through the Metamorphic mountains, where this species 

 ascends in Clay County to its greatest elevation on the Chehawhaw Mountain, 2,000 

 feet. More sparsely diffused in the lower part of the Warrior basin with an outly- 

 ing forest in Walker County (South Lowell). Flowers middle of March. 



Type locality not ascertained. Michaux's locality : " Hab. a Carolina septentri- 

 onali ad Floridam presertim maritimis." 



Economic uses: Of greatest importance fo_ fcs timber, as well as for its resin. 



Herb. Geol. Surv. Herb. Mohr. 



