134 PENTAXDTIIA. MONOGYNlAe 



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



Calix 5 -parted. Corolla funnel-form, border 

 5-cleft, equal. Anthers convergent. Capsule 

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



Herbaceous or suffruticose; leaves opposite; flowers 

 bracteolate, in a terminal unilateral spike or cyme. 



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

 thelmintic. Flowers, 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 g-enus there are 2 other species in Brazil and 

 Cayenne. 



£05. OPHIORRIZA. X. 



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

 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. Miireoki. 2. lanceolata, Elliott. 

 {Cynoctoimm petiohiiimi, Gmelin, Syst. Veg. 443.) 



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

 J^ungos of the East Indies, and 0. subwnbellata of the 

 island of Otaheite, in the Pacific. 



206. SABBATIA. Manson. 



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

 parted. Stigmas 2, spiral. Jlnihcrs at length 

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

 seeded. 



Annual and perennial; leaves opposite, entire; flowers 

 diciiotomal and terminal, often fastigiate. (Citter and 

 tonic.) 



Species. 1. .S*. gracilis, (S- steUaris, Pursh.) 2. cin- 

 gidaris. 3- cnli/cosa. 4. bracldata. Ell. 5. gentianoideSf 

 Ell. &. chloroides 7- panicidata. ^. corymbusa. 



A North American genus, nearly allied to Chirojiia. 



3.07, AZALEA. L. (Swamp Honeysuckle.) 



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

 panulate, o-cleft^ unequal. Stamina declined^ 



