242 THE FLORA. 



Analysis of the Genera. 



* Stemlcss. Leaves all radical, scape bearing an nmbel a 



* Steins leafy. Flowers yellow, corolla -wheel-form (tube none) . . . .b 



* Steins leafy. Flowers white, red, &c., never yellow 2 



2 Leaves Avhorled, at least those near the flowers. Corolla white. . . .c 

 2 Leaves opposite, entire. Flowers axillary, solitary.... d 

 2 Leaves alternate, entire. Flowers white e 



a Cor. tube egg-shaped, lobes short, spread. Dicarf Primrose. Anpkosa\;k. 



a Corolla tube cylindrical, lobes spreading. Primrose. Pkim'ula. 1 



a Corolla tube cylindrical, lobes refiexed. Aino'ican Cowslip. DoDECATii'toN. 2 

 b Corolla 5- parted, without intermediate teeth. Loose-strife. Lysimach'ia. 3 



b Corolla G-parted, with 6 intermediate teeth. Kaceines axillary. NAUMBiip/GiA. 



c Fls. 7-part. Lvs. entire, in a singleVhorl. CMchWintergreen. Trienta^lis. 4 



c Fls. 5-parted. Leaves finely pinnatifid, in water. Feather-fnU. Horro'xiA. 

 d Plant prostrate, with scarlet corollas. Pimpernel. Anac.ai/i.is. I 



d Plant erect, with no corolla, but white calyxes. Blach SalUvort. Glai:x. 



e Fls. 5-parted, panicled. Plant 8-1 SMiigh. Water Pcmpernel, Sam'olus. 



e Fls. 4-parted, axillary. Plant 1-2' high. P war/ Pimpernel. Centux'cuujs. 



1. PPJM'ULA. Primrose. Auricula. 



Calyx angular, 5-cleft. Corolla salver-shaped, or often rather funnel- 

 shaped, with 5 entire, or notched, or bifid lobes. Stamens 5, included. 

 Pod opening at the top, many-seeded. — U Herbs with the leaves all rad- 

 ical, and the flowers showy, in an umbel on a scape. 



* Corolla salver-fonn, limb abruptly spreading. Plants wild, rare 1,2 



* Corolla salver-form, limb abruptly spreading. Plants cultivated S, 4 



* Corolla funnel-form, limb gradually spreading. Cultivated a 



a Leaves hairy, rugose, toothed, or crenate, or wavy at edge 5, 6 



a Leaves smooth, plane, entire, or sometimes crenate.. . .7, 8 



1 P. Mistassin'ica. Midassins P. Smooth, green, S-S' high. Flowers 1-8, 



flesh-colored. On lake shores. N. First seen on L. Mistassins. 



2 P. farino'sa. Bird'' s-eye P. Mealy, 3-10' high. Flowers 3-20, lilac-yellow 



Shores of the great lakes. N. 

 8 P. gTandifio''ra. Common P. Petals obcordate, notched, yellow, purple, &c. \ 

 P. purpu'rea. Purple P. Petals obtuse, entire, dark-violet, never yellow, f 



5 P. ofiicina''lis. Cowslip P. Lvs. hairy. Outer fls. nodding, border concave, t 



6 P. ela'tior. Odip P. Leaves smooth above. All fls. nodding, border flat, t 

 7 P. Auric'ula. Auricula. Lvs. and calyx mealy-glaucous. Bracts very short, t 

 3 P. calyci'na. Cup P. Lvs. white-edged, calyx inflated. Bracts long. Purpl. f 



