182 ELEMENTS OF BOTANY. 



I. SABBATIA. 



Annual or biennial herbs ; stems erect, glabrous, branching, 

 often angled ; leaves opposite or verticillate, sessile or rarely 

 petioled ; flowers terminal, white or red, solitary or cymose ; 

 calyx 4-12-parted, the tube usually very short, the lobes long 

 and narrow; corolla wheel-shaped, deeply 4-12-parted; sta- 

 mens 5-12 and inserted on the throat of the corolla, anthers 

 slender, curved ; ovary 1-celled, style with filiform lobes, 

 twisted; capsule globose, 2-valved, many-seeded, seeds reticu- 

 lated. 



1. S. MACROPHYLLA Hook. Large-leaved Sabbatia. Bien- 

 nial ; stem erect, glaucous, rigid, hollow, corymbosely branched 

 above, 2-3 ft. high ; leaves opposite, thick, ovate-lanceolate, acute at 

 the apex, clasping at the base, strongly 3-5-nerved ; flowers in large, 

 flat-topped cymes, white, ^ in. wide ; calyx 5-parted, the lobes bristle- 

 Uke, one-third the length of the lobes of the corolla. June- August. 

 Low pine barrens, more common southward. 



2. S. ANGULARis (L.) Pursh. BiTTERBLOOM. Auuual ; stem 

 erect, square, wing-angled, smooth, widely branched, 1-2 ft. high ; 

 lower branches sometimes alternate, the others opposite; leaves 

 numerous, ovate, acute, cordate-clasping at the base, 3-5-nerved, 

 about as long as the joints ; flowers in a panicled cyme, about 1 in. 

 wide, rose color or purple ; calyx lobes 5, linear, about half the length 

 of the obovate corolla lobes ; style 2-cleft ; capsule ovoid, about the 

 length of the calyx lobes. July-August. On low rich soil. 



3. S. STELLARis Pursh. Marsh Pink. Stem obscurely 4-angled, 

 widely branched, smooth, 1-2 ft. high ; branches all alternate ; leaves 

 thick or somewhat fleshy, the lower spatulate, the upper lanceolate- 

 oblong or linear, sessile ; flowers on long peduncles, 1-1 1- in. wide, 

 pink to white, with a yellow eye ; calyx lobes linear, shorter than the 

 obovate divisions of the corolla ; style deeply 2-cleft ; capsule ovoid. 

 June-September. In salt marshes. 



4. S. campanulata (L.) Torr. Slender Marsh Pink. Stem 

 obscurely 4-angied, slender ; the branches alternate and diffuse ; leaves 

 linear, the upper filiform, and the lower broader and obtuse, sessile, 

 1-1^ in. long ; flowers on rather short peduncles, pink with a yellow 

 eye, 1-1^ in. wide; calyx lobes linear, as long as the oblong-obovate 

 divisions of the corolla ; style 2-cleft ; capsule obovoid, about half 

 the length of the calyx lobes. May-August. Low pine barrens and 

 brackish marshes. 



5. S. GENTiAxoiDES Ell. PiNE-wooDS PiNK. Stem erect, smooth, 

 simple, or few-branched above, 9-15 in. high ; leaves oblanceolate or 



