134 PENTANDRIA. MOXOGTXIA. 



204. SPIGELIA. L. (Carolina Pink-root.) 



Calix 5 -parted. Corolla funnel- form, border 

 5-cleft, equal. Antheis convergent. Capsule 

 didymous, 2-celled, 4-valved, many-seeded. 



Herbaceous or suffrutlcose; leaves opposite; flowers 

 bracteolate, in a terminal unilateral spike or cyme. 



Species. 1. S. marilandica. Well known as an an- 

 thelmintic. P'lowers, externally brilliant crimson, inter- 

 nally greenish, corolla somewhat club-shaped campanu- 

 late, style fusiform, exserted. This plant was formerly 

 found near Baltimore, in Maryland; it is now rare in Vir- 

 ginia. 



Of this genus there are 3 other species in Brazil and 

 Cayenne. 



5205. OPHIORHIZA. L. 



Calix 5-cleft. Corolla funnel-form, 5-cleft, 

 Germ bifid. Stigmata 2. Capsule mitre-form- 

 ed, 2-lobed, 2-celled, many-seeded. 



Herbaceous or suffruticose; leaves opposite; flowers 

 bracteolate, in lateral and terminal cymes. 



Species. 1. O. Mitreola. 2. la7iceolata, Elliott. 

 (^Cyjioctoniim petiulaUnn, Gmelin, Syst. Veg. 443.) 



Of this genus there are but 2 other species; the O. 

 J^lun^os of the East Indies, and O. sxibumbellata of the 

 island of Otaheite, in the Pacific. 



S06. SABBATIA. Manson, 



Calix 5 to 12-parted. Corolla rotate, 5 to 12- 

 parted. Stigmas 2, spiral. Jnthers at length 

 revohite. Capsule 1 -celled, 2-valved, many- 

 seeded. 



Annual and perennial; leaves opposite, entire; flowers 

 dichotomal and terminal, often fasti giate. (Bitter and 

 tonic.) 



Species. 1. S. gracilis, (S- stellaris, Pursh.) 2. nn- 

 g^ularis. 3. calycosa. 4. brachiata. Ell 5. gentianoidtSf 

 Ell. 6. chloroides 7- pajiiculata. Bi. corymbosa. 



A North American genus, nearly allied to Chironia, 



20r. AZALEA. Z. (Swamp Honeysuckle.) 



Calix 5-parted. Corolla funnel-form, or cam- 

 panulate, 5-cleft, unequal. Stamina declined. 



