714 FLORA. 



Staminodia 5 ; each corolla-lobe curved around its stamen. 



6. Steironehiu. 

 Staminodia 5, tooth-like; flowers in axillary spike-like racemes or 

 heads. 7. Xaumburgia. 



Leaves whorled at the top of the stem ; flowers white. 8. Trientalis. 



Corolla none ; flowers minute, solitary in the axils. 9. Glaux. 



Capsule circumscissile ; flowers axillary. 



Corolla longer than the calyx; stamens borne on its base. 10. Anagallis. 

 Corolla shorter than the calyx; stamens borne on its tube. 11. Centunculus. 

 ** Segments of the corolla reflexed; plants scapose. 12. Dodecatheon, 



x. PRIMULA L. 

 Perennial scapose herbs, with basal leaves, and dimorphous flowers, umbellate, 

 or in bracted racemose whorls. Calyx persistent, often angled, 5-lobed, the lobes 

 imbricated. Corolla funnelform or salverform, the tube longer than the calyx in 

 our species, the limb 5 -cleft. Stamens 5, included; filaments short; anthers ob- 

 long, obtuse. Ovary globose or ovoid; ovules amphitropous; style filiform; stigma 

 capitate. Capsule oblong, ovoid or globose, 5-valved at the summit, many-seeded. 

 Seeds peltate, the testa punctate. [Diminutive of the Latin primus, first, from the 

 early blossoms.] About 150 species, mostly of the northern hemisphere. Besides 

 the following, some 10 others occur in western N. Am. 



Leaves almost always white-mealy beneath; scape 1-5 dm. high. 1. P. farinosa. 

 Leaves green both sides; scape 2-15 cm. high. 



Leaves spatulate or obovate, denticulate. 2. P. Mistissinica. 



Leares oval or lance-ovate, entire. 3. P. Egaliksensis. 



1. Primula farinosa L. Bird's-eye or Mealy Primrose. (I. F. f. 2805.) 

 Leaves spatulate or oblong, obtuse, 2-10 cm. long, the margins crenulate denticu- 

 late; scape 3-20 -flowered; flowers umbellate; bracts acute or acuminate; calyx- 

 lobes acute; corolla pink or lilac, usually with a yellowish eye, the tube slightly 

 longer than the calyx, the lobes cuneate, retuse or obcordate, 4-6 mm. long; cap- 

 sule narrowly oblong, erect, about 1 cm. long, longer than the calyx. In moist 

 places, Me. and Quebec to Greenland, the N. W. Terr, and Alaska. Also in 

 Europe and Asia. Summer. 



2. Primula Mistassinica Michx. Mistassini or Dwarf Canadian 

 Primrose. (I. F. f. 2806.) Similar to the preceding, but smaller. Leaves spat- 

 ulate or obovate, denticulate or repand, obtuse, 1-4 cm. long; flowers 2-8, umbel- 

 late; bracts acute or acuminate; corolla pink, or pale purple, with or without a 

 yellow eye, the tube longer than the calyx; corolla-lobes obcordate, 3-5 mm. long; 

 capsule narrowly oblong, erect, 5-8 mm. high. On wet banks, Me. to Greenland, 

 N. Y., Mich, and the N. W. Terr. Occurs also in Europe. Summer. 



3. Primula Egaliksensis Hornem. Greenland Primrose. (I. F. f. 2807.) 

 Leaves oval or lance-ovate, entire, or slightly undulate, obtuse or obtusish, 

 1-2.5 cm. long, narrowed into petioles; scape slender, 5-15 cm. high; umbels 

 2-6-flowered; bracts lanceolate, acuminate; calyx-lobes acute; corolla-lobes 

 2-4 mm. long, much shorter than the tube, obovate, sometimes cleft to the middle; 

 capsule erect, about 6 mm. high, longer than the calyx. Lab. and Greenland. 

 Summer. 



2. ANDROSACE L. 



Low herbs, our species scapose, with tufted small basal leaves, and terminal 

 umbellate involucrate small white or pink flowers. Calyx persistent, 5-lobed, the 

 lobes erect in flower. Corolla salverform or funnelform, the tube not longer than 

 the calyx, the limb 5-lobed. Stamens 5, included, inserted on the tube of the corolla; 

 filaments short; anthers short, oblong, obtuse. Ovary turbinate or globose; ovules 

 ;Lmphitropous; style short; stigma capitellate. Capsule 5-valved from the apex, 

 few many-seeded. [Greek, man's shield, from the shape of the leaf in some species.] 

 About 50 species, natives of the northern hemisphere. Besides the following, some 

 6 others occur in western and northwestern N. Am. 



1. Androsace occidentalis Pursh. ANDROSACE. (I. F. f. 2808.) Annual, 

 minutely pubescent, or glabrate; scapes filiform, 2-8 cm. long. Leaves oblong or 

 spatulate, obtuse, entire, sessile, 6-16^ mm. long; bracts of the involucre similar to 



