14 Britton: Studies of West Indian Plants 



i. Aster Grisebachii Britton, nom. nov. 



Haplopappus marginatus Griseb. Cat. PL Cub. 149. 1866. Not 

 Aster marginatus H.B.K. 

 Sandy and gravelly pine-lands, Pinar del Rio and Isle of Pines, 



Cuba. 



A species with solitary heads on long, sparingly bracted scapes, 

 the rootstocks much-branched, the rosulate linear-oblong leaves 

 pilose, the rays bright white. 



2. Aster adnatus Nutt. Jour. Acad. Nat. Sci. Phila. 7: 82. 



1834 

 Pine-lands, Great Bahama Island ; southeastern United States. 



3. Aster lucayanus Britton, Bull. N. Y. Bot. Gard. 4: 143. 



1906 



Pine-lands, Great Bahama Island. 



4. Aster bahamensis Britton, sp. nov. 



Stout, fibrous-rooted, slightly fleshy, glabrous, 3-20 dm. high. 

 Lower leaves and those of sterile shoots with sheathing petioles 

 4-7 cm. long, the blades oblong to linear-oblong or oblong-lanceo- 

 late, obtuse or acute, 4-8 cm. long, 5-20 mrm wide, sparingly 

 crenate-dentate or entire, narrowed into the petiole, the midvein 

 prominent, the lateral veins obscure; upper stem-leaves linear, 

 entire, 6 cm. long or less, those of the branches nearly subulate, 

 3-12 mm. long; heads numerous, paniculate; involucre nearly 

 cylindric, 6-8 mm. high, its bracts linear, acuminate, about 0.7 

 mm. wide, green with scarious margins, or the inner merely green- 

 tipped; rays purple, 4-5 mm. long; achenes columnar, 2.5 mm. 

 long, the angles roughened; pappus brownish, twice as long as the 

 achene. 



Moist grounds and marshes, Great Bahama, Andros, Eleuthera 

 and Cat Island. Type from Barnett's Point, Great Bahama 

 {Britton & Millspaugh 2621). 



5. Aster Burgessii Britton, sp. nov. 



Rootstock short, thick. Stems clustered or solitary, densely 

 leafy, often with many short branches, pubescent, at least above, 

 5 dm. high, or less. Lower and basal leaves oblanceolate or 

 spatulate, obtuse or acutish, distantly low-serrate, 2-5 cm. long, 



