105 
uniflora. 
eslivalis, 
autumnalis. 
pulchellum, 
corniculata. 
' 
TETRANDRIA MONOGYNIA. Centaurella, 
longioribus, stylo germine longiore. Mich. fl. amer. 1. 
p.98. | 
Icon. Mich.l. c.t. 12. f. 2. 
- B. C. pusilla, caule unifloro. 
In mossy swamps: Virginia to Georgia. ©. May-July. - 
v.v. Var. B v. s. in Herb. Lyon. -About five inches 
high; the flowers white, and larger than the rest. The 
variety B may be a distinct species ? 
2. C. caule simplici, pedunculis oppositis simplicibus, laci- 
niis corolla spathulatis abrupte acutis calyce triplo 
longioribus, stylo longitudine germinis. , 
In mossy swamps : Carolina to Georgia. ©. June—Aug. 
v. s. in Herb. Enslen. From two to four inches high ; 
` flowers smaller than No. 1 ; the calyx very short. 
3.C. caule subramoso, pedunculis oppositis, inferioribus 
ramosis, laciniis corolla ovalibus acutis calyce vix lon- 
. gioribus, stylo brevissimo. 
.. C. paniculata. Mich. fl. amer. 1. p. 98. 
Bartonia tenella. Muhib. in lit. — 
Sagina virginica. Willd. sp. pl. 1. p. 719. 
ag Mich. l. c. t. 12. f. 1. i N 
mossy swamps, in inundated grassy places: New 
England to Carolina, common. ©. July—Sept. v.v.; 
v. pi d. Herb. Gronov. sub nomine Sagina de 4- 
subnudo, floribus oppositis. Sagine affinis planta m- 
nima, floribus allis. Clayt. MSS. 649. About a foot 
high, sometimes quite simple and very small ; flowers 
small, greenish-white. P 
125. EXACUM. Gen. pl. 185. 
1. E. corollis quadrifidis, calycibus quadripartitis: laciniis 
subulatis, panicula S ER. pedunculis filiformibus. 
Near the sea-coast of New Jersey ; rare. Q9. Aug. V." 
Ke rose-coloured; resembling E. filiforme Vey 
. 126. SWERTIA, Gen. pl.44g. 
1. S. corollis campanulatis coruiculatis : cornibus deflexis, 
. foliis ovatis, ramis brevibus. - 
S. corniculata. Willd. sp. pl. 1.p.1330? ^ : 
In swamps of Canada and round the lakes of the western 
part of the United States. g. July. v.v. Flowers 
greenish yellow. The Siberian plant differs from th 
