[VOL. II. 



20 CARYOPHYLLACEAE. 



4. Dianthus barbatus L,. Sweet William. 

 Bunch Pink. (Fig. 1471.) 



Dianthus barbatus L. Sp. PI. 409. 1753. 



Perennial, tufted, glabrous, stems erect, i-2 high, 

 branching above. Leaves lanceolate or ovate-lanceolate, 

 i% f -j/ long, 4 // ~9 // wide, acute; bracts linear-filiform, 

 about equalling the long-toothed calyx; flowers pink 

 or whitish, in large terminal clusters. 



In waste places, escaping from gardens, occasional in the East- 

 ern and Middle States. Introduced from Europe. Summer. 



10. ALSINE L. Sp. PI. 274. 1753. 



[STELLARIA L. Sp. PI. 421. 1753.] 



Tufted annual generally diffuse herbs, with cymose white flowers. Sepals 5, rarely 4. 

 Petals of the same number, 2-cleft, 2-parted, or emarginatc, white in our species, rarely none. 

 Stamens 10 or fewer, hypogyuous. Ovary i-cclled, several or many-ovuled; styles com- 

 monly 3, rarely 4-5, usually opposite the sepals. Capsule globose, ovoid or oblong, dehis- 

 cent by twice as many valves as there are styles. Seeds smooth or roughened, globose or 

 compressed. [Greek, grove, the habitat of some species.] 



Species about 75, widely distributed, most abundant in temperate or cold climates. 

 Styles 5; leaves ovate, I'-a* long. I. A. at/ita/ica. 



Styles 3, rarely 4. 



Leaves broad, ovate, ovate-oblong or oblong. 



Plants glabrous, or with a few scattered hairs. 



Flowers few, terminal; leaves ovate, a" -3" long. 

 Cymes lateral; leaves oblong, 5"-io" long. 

 Stems with i or 2 pubescent lines; petioles often ciliate. 

 Petals shorter than the calyx; lower leaves petioled. 

 Petals longer than the calyx; lower leaves rarely petioled. 

 Leaves narrow, linear, oblong, oblanceolate or spatulate. 

 Flowers 7-10" broad. 

 Flowers only 2"-6" broad. 



Bracts of the cyme small, scarious. 



Pedicels widely spreading; cyme diffuse. 



Leaves linear, acute at each end; seeds smooth. 

 Leaves lanceolate, broadest below; seeds rough. 

 Pedicels erect; flowers few or solitary. 

 Bracts of the cyme foliaceous, resembling the upper leaves. 



Capsule i K-2 times as long as the calyx; leaves lanceolate or oblong-lanceolate. 

 Seeds rough; petals equalling or longer than the calyx. 10. A. crassifotia. 



Seeds smooth; petals much shorter than the calyx or none. n. A. boreal i\. 

 Capsule not longer than the calyx; leaves linear or linear-spatulate; petals none. 



12. A.fontinalis. 



i. Alsine aquatica (L.) Britten. Water Mouse-ear Chick weed. (Fig. 1472.) 



Cerastinm aqualicum L. Sp. PI. 439. 1753. 

 Stellaria aquatica Scop. Fl. Cam. Ed. 2, x: 319. 1772. 

 Alsine aquatica Britton, Mem. Torr. Club, 5: 356. 1894. 



Perennial, stem angled, mostly glandular-pubescent 

 above, nearly glabrous below, ascending or decum- 

 bent, branched, i-2^ long. Leaves ovate or ovate- 

 lanceolate, acute at the apex, the upper sessile and 

 subcordate, the lower petioled, rounded at the base, i'- 

 2' long; flowers about ]^ f broad, solitary in the forks 

 of the stem and in terminal cymes; pedicels slender, 

 glandular, deflexed and much longer than the calyx in 

 fruit; calyx campanulate; sepals ovate, acute, about 

 one-half as long as the 2-cleft petals; stamens 10; styles 

 5, alternate with the sepals; capsule ovoid-oblong, 

 slightly longer than the calyx; seeds rough. 



In wet and waste places, Ontario to Pennsylvania. Also 

 in British Columbia. Adventive from Europe. May-Aug. 



2. A. htimi/nsa. 



3. A. itliginosa. 



4. A. media. 



5. A. f>n beta. 



6. A. Hoi os tea. 



7. A. 



8. A. graminea. 



9. A . longipes. 



