288 SUMMER FLOWERS. 



with a slender tube, and a spreading, five-cleft limb. — Dry 

 pastures and sandy places. Fl. July, August. The following 

 are probably forms or varieties : — 



E. pulchella : more branched, with numerous flowers, the 

 tube of the corolla not much longer than the calyx, and the 

 lobes of the limb narrow. — Sandy places. 



E. latifolia: dwarf with rather large flowers and broad 

 leaves. — Sandy sea shores. 



E. littoralis: much branched, usually small, with very 

 narrow leaves and rather large flowers, often dwindled down 

 to a simple stem half an inch high, with a single flower. — 

 Sandy sea shores. 



(205) Gentiana. Gentian. 



G. Amarella: annual; stems erect, much-branched, |-1 

 foot high, often with a purplish tinge ; leaves ovate or lanceo- 

 late ; flowers numerous, crowded, or sometimes forming a loose, 

 oblong, leafy panicle, pale purplish-blue ; calyx divided to the 

 middle into five narrow-lanceolate, nearly equal lobes ; corolla- 

 tube broad, fringed at the throat, the limb spreading, divided 

 into five ovate or oblong lobes. — Dry hilly pastures. Fl. 

 August, September. 



G. campestris much resembles this, but is usually stouter, 

 more branched, and more crowded with leaves and flowers; 

 it is known by the parts of the flower being in fours, not in 

 fives, and by two of the lobes of the calyx being broadly ovate, 

 overlapping two other narrow ones. [See also p. 59.] 



(206) Chlora. 



C. perfoliata : annual ; stems erect, stifi*, i-2 feet high, 

 pale glaucous green ; leaves in a spreading tuft, elliptic- oblong. 



