PL ex. cor. 27. GENTIANS. 96. Chlora. 339 



VI. 96. CHLORA. Renealm. . Yellow-ivort, 

 Calyx 8 or 1 0-sepaled ; sepales lanceolate ; corolla hypo- 



crateriform; tube short; limb 6 or 10-parted; stamens 6 

 to 10 ; Jilaments short, inserted in the mouth of the co- 

 rolla; anthers upright, exserted ; styles 1, short, 2-cut; 

 stigmata 2, 2-cut; capsule oblong, 1-celled, many-seeded; 

 seeds ovate. — Stem forked at top; leaves connate at the base; 

 flowers solitary, from the forks of the stem. 



Chlora perfoliata. Thoroughleafed yellow-wort. 



Herb glaucous ; radical leaves ovate, stellate ; stem leaves 

 3-angular, acute, connate. 



Centauriiun luteum perfoliatum, Rail Syn. 28T,4. 



Cenlaurium luteum Lobelii, Ger. em. 547,2. 



Cenlaurium minus luteum et perfoliatum non ramosum, Park. 271. 



Gentiana perfoliata, Lin. S. P. 335. 



Clilora perfoliata, Lin. Mant. 



Blackstonia perfoliata, Huds. Fl. ^ngl. ed. 1, 146. 



Chironia perfoliata, Salisb. Prod. 137. 



Yellow centory. 



Chalk hills ; annual ; July and August. 

 Root tortuous; stem 1 foot high. 



VII. 97. SWERTIA. Linnaeus. FellworL 

 Calyx 4" or 5 sepaled ; corolla rotate ; tube very short, 



not spurred ; limb 5-parted ; lobes lanceolate ; glands 2, 

 fringed, at the base of each lobe ; stamens 4 or 5, shorter 

 than the corolla; anthers versatile; style very short, 2-parted; 

 stigmata 2; capsule ovate, 1-celled, 2-valved, many-seeded; 

 seeds margined, wing not cut. — Flowers blue, axillary and 

 terminal; peduncles often 1 -flowered. 



Swertia pei'sunis. Perennial foil wort. 



Stem simple; radical leaves lengthened into a petiole; 

 peduncles 4-sided, opposite ; corolla 5-cut. ■* 



Gentiana Pennei minor, Ger. em. 433,5. 

 Swertia perennis, Lin. S. P. 328. 

 Spotted gentian. Marsh gentian. 



Alpine bogs; perennial; August. 



Root white; stem a foot high; flowers upright, purplish, 

 spotted with black. 



z 2 



