MONOPETALOUS EXOGENOUS PLANTS. 381 



with the rudiment of a sterile one interposed ; style slender ; 

 capsule globose, 5-10-valved, few-many- seeded ; seeds am- 

 phitropoiis. — Perennial herbs, with entire opposite or 

 whorled leaves, and axillary or- racemose yellow /o?6'er5. 



* Flowers in terminal racemes or panicles. 



L. STRICTA, Ait. Leaves 2' long, very numerous, lanceo- 

 late, acute at both ends, dotted, opposite ; fioivers small ; 

 racemes long, leafy at the base; j-jed^iceZs slender; corolla- 

 lobes lanceolate-oblong, obtuse, entire, marked with dark 

 lines ; filaments monadelphous, unequal ; sterile ones none ; 

 ca2)sule 5-valved, 3-5-seeded; stem l°-2? high. 



** Flowers asAUary. 



L. QUADRIFOLIA, L. Stem 2° high, pubescent, simple; 

 leaves 4-5 in a whorl, ovate-lanceolate, dotted, acute, ses- 

 sile; peduncles fiWioYDi'y coroZ/^-lobes ovate-oblong, dotted; 

 filaijients monadelphous. 



L. CILIATA, L. Stem l°-2° high, mostly branching, 

 smooth ; leaves lanceolate-ovate, cordate or rounded at the 

 base, on ciliate petioles, opposite ; corolla longer than the 

 cali/x, with broadly ovate or roundish denticulate lobes; 

 peduncles opposite. 



DODECATHEON, L. American Cowslip. 



Stemless herbs; leaves radical, clustered, spatulate or 

 oblong; floivers umbellate, terminating the naked scape, 

 white or purple ; calyx 5-cleft, the lobes reflexed; corolla- 

 tube very short, the 5-parted limb reflexed ; stamens 5 ; 

 the filaments monadelphous at the base; anthers long and 

 linear, erect ; capsule oblong-ovate, 5-valved at the apex, 

 many-seeded ; leaves spatulate or oblong, radical, clustered. 



D. Meadia, L. Scape 1° high ; leaves i'-Q' \o-ng. eutive, 

 or remotely crenate, smooth ; fi,owers showy, nodding, in 

 many-bracted umbels. Perennial, 



