MONOPETALOUS EXOGENOUS PLANTS. 3G5 



S. OLERACEUS, L. Smootli ; ste7n branching; leaves 

 pinnatificl, with spiny-toothed lobes, clasping, the lowest 

 petioled ; achenia transversely roughened. Stem l°-2° 

 high. 



6G. LOBELIA FAMILY. Order, Lobeliace^. 



Chiefly lierhs, with milky juice; leaves alternate, without 

 stipules ; floioers irregular ; calyx 5-lobed, the tube adhe- 

 rent to the 2-celled ovary ; corolla unequally 5-lobed, val- 

 vate in the bud ; the tube split on one side to the base ; 

 stamens 5, inserted on the calyx; the anthers, and com- 

 monly the filaments, united into a tube; style solitary; 

 stifjma 2-lobed, surrounded with a ring of hairs ; fruit bac- 

 cate and indehiscent, or capsular and 2-3-valved, many- 

 seeded; seeds anatropous; embryo straight in fleshy albu- 

 men. — Acrid, poisonous plant, 



LOBELIA, L. Lobelia. 



Corolla bilabiate, the upper lip small, erect or reflexed, 

 2-parted, tlie lower spreading, palmately 3-cleft; the tube 

 straight; anthers, or a part of them, bearded at the apex, 

 curved; capsule 2-celled, 2-valved at the apex, many- 

 seeded. Stems erect; leaves undivided, the serratures 

 glandular ; flowers blue, white, or scarlet, in terminal ra- 

 cemes or spikes. 



* Moicers scarlet. 



L. CARDiNALis, L. {CarcUnal-floicer.) Smooth or 

 slightly pubescent; stem stout, simple; leaves lanceolate, 

 denticulate ; bracts leafy ; stamens and style much longer 

 than the corolla; raceme many-flowered; /ot(;er5 very ele- 

 gant and showy. Perennial. Stem 2°-4° high. Common 

 on the banks of Buffalo Bayou in the neighborhood of 

 Houston. 



