EUPHORBIACEAE. 239 



entire; stamens 5; filaments cristate-barbellate at the base; styles short, 

 deeply bifid; capsule ovoid; cocci acutely carinate; seeds ovoid-quadrangular, 

 the ventral angle obtuse, pinkish gray, 1.1 X - 8 mm -> facets slightly and indis- 

 tinctly anastomose and transversely ridged. 



Coastal sands, white-lands and sand-pockets in coastal rocks, Eleuthera, the 

 Exumas, southward to Fortune Island. Endemic. Referred by Mueller to Eu- 

 phorbia Balbisii Boiss ; by Coker to Euphorbia cayensis Millsp. ; and in Field Mus. 

 Bot. 2 : 161 to Euphorbia flexuosa Kth. EXUMA SPURGE. 



6. Chamaesyce cayensis Millsp. Field. Mus. Bot. 2: 301. 1909. 



Euphorbia cayensis Millsp. Torreya 4: 172. 1904. 



Low, densely white-canescent ; stems stout, ligneous, multinodal, branch- 

 ing below, 2-3 dm. high, spreading above. Leaves thick, oval, 4-6 X 3 ~ 4 mm., 

 obliquely cordate at the base, entire, canescent alike on both surfaces; 

 petioles 1-1.5 mm.; involucres campanulate, short-peduncled, 1.5 mm., canes- 

 cent, bearded in the throat; glands green, transversely oblong, thick, tumid, .7 

 mm. broad (fifth gland represented by a large, deltoid tooth on the involucral 

 margin); appendages lineal, hardly distinguishable; capsule canescent; cocci 

 bluntly keeled; seeds pinkish ashen, ovoid-quadrangular, the ventral angle 

 slight, 1 X -8 mm., facets distinctly transversely anastomose-ridged. 



Coastal white-lands, Man-o'-War Cay (Abaco), the Berry Islands and Joulter's 

 Cays, Anguilla and Water Cays (Cay Sal Bank). Endemic. BAHAMA SPURGE. 



7. Chamaesyce Bracei Millsp. Field Mus. Bot. 2: 302. 1909. 



Euphorbia Bracei Millsp. Field Mus. Bot. 2 : 159. 1906. 



Nearly prostrate, branching from the -base; branches ligneous, canescent. 

 Leaves thickish, oblong to ovate, 5-8 X 3 ~ 5 mm v Vei 7 short-canescent and 

 dotted with amber-like resin globules on both surfaces, the base narrowing to 

 the petiole, the apex obtuse, the margin entire, revolute; petiole one-fifth the 

 length of the blade; stipules triangular, 2-toothed or more, the teeth tipped 

 with a stalked dark globular gland; involucres upper-axillary, cup-shaped, 

 the pedicels equalling the tube, eanescent without, eiliate within, the inner 

 wall 'with 5 alate columns from the base to the glands; lobes triangular, acute; 

 glands 4 (the fifth represented by a broader, longer involucral tooth), minute, 

 transversely-ovate; appendages very narrow, crenate, or wanting; stigmas 

 bifurcate to the base; capsule acicular-hairy ; seeds ovoid-quadrangular, .9 X -7 

 mm., very slightly anastomosely transverse-ridged. 



White-lands of Abaco and Man-o'-War Cay. Endemic. BRACE'S SPURGE. 



8. Chamaesyce articulata (Aubl.) Britton, Mem. N. Y. Bot. Gard. 6: 574. 



1916. 



Euphorbia articulata Aub-l. PI. Guian. 1: 480. 1775. 

 Euphorbia linearis Eetz. Obs. 3: 32. 1783. 



Shrubby, glabrous, 3-6 m. high, the branches divaricate. Leaves glabrous 

 or slightly canescent, ligulate to oblong-linear or narrowly oblong, 2-6 cm. X 

 4-6 mm., rounded or narrowed at the oblique base, acute or blunt, mucronulate, 

 entire, glaucous beneath; petioles short; stipules interpetiolar, broadly deltoid, 

 eiliate ; involucres single, terminal-axillary ; peduncles more or less winged ; 

 tube thick, glabrous without, minutely appressed-silky within; involucral lobes 

 wanting, the margin of the tube thickened ; glands 4, cup-shaped, with a nipple- 

 like projection at the inner edge (resembling the tip of an elephant's pro- 

 boscis); bracteoles very numerous, ligulate below, brush-like above; stigma 

 3-furcate above the middle; capsule glabrous, strongly 3-coccous; seed pink- 

 ashen, ovoid-quadrangular, 1.5 X 1 mm., facets transversely anastomose-rugose. 



Low scrub-lands near Jacksonville, East Caicos : Porto Rico to Anegada and 

 St. Vincent. BUSHY SPURGE. 



