(50 ARECACEAE. 



hard, the endosperm bony. [Name not explained.] About 18 species, of the 

 southern United States, Bermuda, West Indies, Mexico, and northern South 

 America. Type species: Sabal Adansoni Guersent (&. glabra (Mill.) Sargent). 



1. Sabal Palmetto (Walt.) Lodd.; E. & S. Syst. 7: 1487. 1830. 



Corypha Palmetto Walt. Fl. Car. 119. 1788. 

 Sabal umbraculifera Mart. Hist. Nat. Palm. 3: 245. 1839. 

 1 nodes Palmetto O. F. Cook, Bull. Torr. Club 28: 532. 1901. 

 Sabal Palmetto bahamensis Beec. Palm. Amer. 38. 1907. 



Trunk 10-20 m. high, 3-7 dm. in diameter, often clothed, when young, 

 with persistent leaf -bases. Leaves 1-2.5 m. broad, their many linear-lanceolate 

 segments 2-cleft and somewhat drooping at the apex, the stout petioles 

 concave above, often as long as the blades; panicles as long as the leaves or 

 shorter ; flowers white, sessile ; calyx cup-shaped, 3-lobed, its lobes obtuse, 

 about 1 mm. long; petals oblong-lanceolate 5-6 mm. long; stamens about as 

 long as the petals; drupes globose, black, 6-12 mm. in diameter, the pulp thin. 



Borders of marshes, and in rocky soil, throughout the archipelago from Great 

 Bahama to Watlings, Caicos Islands, Inagua, Anguilla Isles and Cay Sal : North 

 Carolina to Florida ; ?Cuba. Pond-top. Pond Thatch. Hat Palmetto. 



4. PAUROTIS O. F. Cook, Mem. Torr. Club 12: 21. 1902. 



[Acoelorraphe Wendl. Bot. Zeit. 37: 147. Hyponym. 1879.] 



A slender, clustered palm, the trunks united underground, forming colonies, 

 the leaves palmately cleft with spiny-toothed petioles, the large panicles of 

 greenish-white flowers erect or ascending, the petiole-bases long-persistent. 

 Flowers very small and numerous, sessile and glomerate. Sepals 3, nearly 

 orbicular; petals 3, valvate. Stamens 6; filaments short, their bases dilated 

 and united into a short cup ; anthers ovate. Ovary 3-carpellary. Fruit small, 

 globose. Seed globose, separable from the pericarp, the raphe not intruded 

 into the endosperm. [Greek, referring to the few spathes of the inflorescence.] 

 A monotypic genus. Type species: Paurotis androsana O. F. Cook. 



1. Paurotis Wrightii (Griseb. & Wendl.) Britton, N. A. Trees 141. 1908. 



Copemicia Wrightii Griseb. & Wendl.; Griseb. Cat. PI. Cub. 220. 1866. 

 Serenoa arborescens Sargent, Bot. Gaz. 27: 90. 1899. 

 Paurotis androsana O. F. Cook, Mem. Torr. Club 12: 22. 1902. 



Gregarious; trunks 5-8 m. high or exceptionally 10-15 m., 1-1.5 dm. thick. 

 Leaves 6-10 dm. in diameter, deeply cleft into linear-lanceolate, acuminate seg- 

 ments 1-2 cm. broad, light green above, pale green or whitish beneath, 2-cleft 

 above the middle, the slender, compressed petiole about as long as the blade, 

 its margins armed with many rigid, triangular, spine-like teeth 4-7 mm. long; 

 panicles longer than the leaves; flowers about 1.5 mm. broad; fruit 6-8 mm. in 

 diameter. 



Borders of swales and sandy ridges, Andros : Florida ; Cuba. Saw Palmetto. 

 Spanish-top. 



5. PSEUDOPHOEN1X Wendl. Bot. Gaz. 11: 314. 1886. 



Unarmed palms, with a cylindric or somewhat spindle-shaped trunk en- 

 larged at the base, and large, pinnate leaves of many, narrow segments, the 

 rachis concave above, the petiole short. Inflorescence drooping, usually much 



