CARDUACEAE. 441 



1. Aster lucayanus Button, Bull. X. Y. Bot. Gard. 4: 143. 1906. 



Rootstock short, tuber-like; stems erect, 5-7 dm. high. Leaves reticulate- 

 veined, entire, sessile (basal ones not seen), the lower oblaneeolate, obtuse, those 

 above the middle of the stem lanceolate to oblong-lanceolate, acuminate, 23.5 

 cm. long, 5-8 mm. wide, those of the inflorescence similar. smaller; heads 

 racemose or racemose-campanulate, about 2 cm. broad; peduncles slender, 

 sericeous ; involucre turbinate-campanulate, its bracts loose, narrowly oblong- 

 lanceolate, acuminate, sericeous, the inner 5-7 mm. long; rays purple, 2 mm. 

 wide; achenes sericeous, 3 mm. long, half as long as the whitish pappus. 



Pine-lands of Great Bahama. Endemic. Pine-land Aster. 



2. Aster adnatus Xutt. Jour. Acad. Sei. Phila. 7: 82. 1834. 



Rootstock tuberous; stem 2-8 dm. high, hispidulous, branched. Leaves 

 various, the basal ones obovate, 1.5-2.5 cm. long, those of the stem numerous, 

 oblong to lanceolate, 3-12 mm. long, scabrous, sessile, those of the branches 

 reduced to very small scales; heads few, terminating the branches; involucre 

 4-6 mm. high, its linear bracts with slightly spreading green tips; ray- 

 numerous, violet, 7-10 mm. long; achenes glabrous. 



Pine-lands of Great Bahama : southeastern United States. Scale- lea vi:i> Aster. 



3. Aster Bracei Britton; Small, Fl. Miami 190. 1913. 



Annual? Fleshy, glabrous, roots several coarse fibres; stem rather 

 slender, often zigzag, branched above, the branches divaricately ascending; 

 leaves all narrowly linear, thick, entire, acute, somewhat narrowed toward the 

 clasping base, the lower ones and those of shoots 10 em. long or less, 3-4 mm. 

 wide, the upper much shorter, those of the branches few, linear-subulate, very 

 small; heads mostly solitary at the ends of the slender branches; involucre 

 campanulate-cylindric, 3-4.5 mm. high; bracts in 3 or 4 series, light green, 

 linear to linear lanceolate, abruptly acute or short-acuminate; rays pinkish, 

 4-5 mm. long; achenes 1-1.5 mm. long, rough on the angles. 



Brackish marshes and savannas, Abaco, Great Bahama, Andros, New Provi- 

 dence: Florida; Cuba. Recorded as A. tenuifolius by Coker. Brace's Aster, 



4. Aster exilis Ell. Bot. S. C. & Ga. 2: 344. 1824. 



Annual, glabrous, somewhat fleshy, erect, 3-12 dm. high, usually much 

 branched, the branches slender. Stem-leaves linear or linear-lanceolate, 2-10 

 cm. long, entire, acute, sessile or nearly so, 2-5 mm. wide, those of the branches 

 subulate, 2-10 mm. long, ihe basal ones oblong-lanceolate, petioled; h< 

 usually many, loosely panicled; involucre 5-6 mm. high, its linear-subulate, 

 appressed bracts imbricated in 3 or 4 series; rays several, 2-4 mm. long, 

 purplish or white, longer than the pappus; achenes pubescent. 



Wet grounds, Andros: southeastern United Slates; Cuba. Slim ASTEB. 



5. Aster bahamensis Britton, Bull; Torr. Club 41: 14. L914. 



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

 leaves and those of sterile shoots with sheathing petioles i ~ cm. long, the 

 blades oblong to linear-oblong or oblong-lanceolate, obtuse or acute, t 8 cm. 

 louir, 5-20 mm. wide, sparingly crenate-dentate or entire, narrowed into the 

 petiole, the midvein prominent, the lateral veins obscure; upper stem-leaves 

 linear, entire, cm. long or less, those of the branches nearly subulate, 3-12 

 mm. long; heads numerous, paniculate; involucre nearly cylindric. ,; B mm. 

 high, its bracts linear, acuminate, about 0.7 mm. widi with -carious 



margins, or the inner merely green-tipped; rays purple, l 5 mm. long; ach 

 columnar, _'..") mm. long, the" angles roughened; pappus brownish, twice as : 

 as the achene. 



.Moist grounds and marshes, (ireat Bahama, Andros, Eleuthera and Cal Island: 

 Cuba. Bahama Aster. 



29 



