74 Class V. Order I. 



76. ANAGALLIS. 



ANAGALLIS ARVENSIS. L. Scarlet Pimpernel. 



Leaves ovate, dotted beneath ; stem procumbent. 

 Sm. 



A humble but very delicate flower. Stein square, procum- 

 bent. Leaves ovate, covered on the under side with purple 

 dots. Flowers on axillary footstalks, bright scarlet. Capsule 

 spherical, bursting crosswise, a character at any time ascertained 

 by pressing it. In England it has received the name of " Poor 

 man's weather glass," from the circumstance that the flowers 

 close in bad weather, being very sensible to changes of the air. 

 Common at South Boston. June and after. Annual. 



77. LYSIMACHIA. 



LYSIMACHIA THYRSIFLOR.A. L. Tufted Loosestrife, 



Racemes lateral, pedunculated. 



Syn. LTSIMACHIA CAPITATA. Pursh. 



Stem simple, smooth. Leaves sessile, opposite, lanceolate, 

 acute, somewhat revolute at the edges, paler and somewhat 

 down} r beneath. Flowers small yellow in short rounded racemes 

 or heads supported by axillary peduncles. The American plant 

 does not appear to me to differ from the European. The seg- 

 ments of the corolla and stamens often vary to six and seven, as 

 in the European. Swamps. June. Perennial. 



Subgenus SELEUCIA. Capsule Jive valved, intermediate 

 barren filaments Jive. 

 LYSIMACHIA CILIATA. L. Heart leaved Loosestrife. 



Leaves opposite, heart-oval, petioles ciliated, flow- 

 ers chiefly in pairs, drooping. 



This Lysimachia is distinguishable from the subsequent spe- 

 cies by its broader leaves obtuse at base, and its larger flowers. 

 It rises from one to two feet in height, gives off opposite, oblong, 

 pointed leaves somewhat heart shaped at base. The upper pairs, 

 which have flowers in their axils, are so near together as to ap- 

 pear quarternate. Petioles fringed with hairs extending round 

 the stem. Flowers in pairs, crossing so near as to appear whorl- 



