1026 PRIMULACEAE 
rotate, longer than the calyx; ds dilated. 
Filaments pubescent: anthers ellipsoid.— 
About 15 species, mostly natives of the Old 
World 
1, A. arvensis L. Stem and branches an 
em. long: leaf-blades ovate, or oval, 
mm. long, E sessile: calyx- -lobes fanceo 
late, about 2 . lon ng: o scarlet o 
rarely white (blue in is coe crea) , 
m. wide; lobes ae nad 
t 4 mm. 
EATHER- PERNEL.) 
—Waste-places, fields, im) ud di various provinces, Fla. to Tex., Minn., 
and Newf.; also Pacif. States. Nat. of Eurasia —Spr.-s 
5. MICROPYXIS RA Annual small herbs. Leaves alternate or some 
lower ones opposite: blades thiekish. Corolla ineonspicuous, rotate, 
e than the calyx: tube very short: 
lobes narrowed upward.  Filaments united 
only at the base. Anthers didymous.—One & 
species. D 
1. M. pumila (Sw.) Duby. Stem 5-20 cm 
tall: leaf-blades vi e “suborbienlar, 3-10 
mm. long, apiculat slender-pedi- 
celled: calyx-lobes elipti- “ovate, abruptly 
pentandrus R Br. ]— (FALSE-PIMPERNEL.)— 
Low grounds, pen. Fla.—(W. I., Mez., C. A., 
A., O. W.)—Spr.—fall. 
6. CENTUNCULUS L. Annual small herbs of low grounds. Leaves alter- 
nate, or some of the lower ones opposite: blades thickish. Corolla incon- 
DN not exceeding the calyx, with a i 
globular tube and 5 narrow OE lobes 
Filaments united above the middle. Anther 
didymous.— Two species, ice rw) 
1. C. minimus L. Stem 2-15 em. tall: leaf- 
ey ae elliptic, or obovate, 3- : 
. long, acute or obtuse: flowers sessile o 
n so: ealyx-lobes narrowly lanc EE 
and moist soil, various provinces Fla. 
Tex. B. C., Minn., and IlL—J7. I., Mor. C. A. S. A., O. W.)—Spr.—fall. 
7. DODECATHEON L. Perennial scapose herbs with erect flower-stalks. 
Leaves on a short caudex: blades entire to coarsely toothed. Flowers showy, 
