CARYOPHYLLEjE. 53 



acute, 3-nerved, larger than the corol ; capsule ovate, 6-valved, equal- 

 ling the calyx ; seeds exactly reniform, rugose. 



HAS, Sandy fields. N. Y. to Car. May July. .Stem 

 mostly decumbent, 3 8 inches long. Flowers axillary and ter- 

 minal, solitary. 



7. A. lateriflora Linn. : stem filiform, branched ; leaves obtuse, cili- 

 ate, nerved ; peduncles lateral, solitary, elongated, 1 2 flowered ; 

 one of the pedicels with 2 opposite bracts near the middle; sepals ovate, 

 obtuse, shorter than the petals ; capsule ovate, obtuse, longer than the 

 calyx. 



HAS. Meadows. N. S. North to Hudson's bay. June. 1. 

 Stem 510 inches high, erect, filiform. Peduncles axillary, 

 very slender, forked. Flowers white. 



8. A. peploidcs Linn. : stem dichotomous; leaves ovate, acute, fleshy, 

 approximate ; flowers solitary, on short peduncles ; sepals oblong, 

 acutish, about as long as the corol ; capsule globose, depressed, 

 3-valved ; seeds numerous, black. 



HAB. Sea coast. Mass. N. J. N. to Arctic America. June. If. 

 Stem 8 12 inches high. Flowers axillary, sessile. Petal* 

 white, membranaceous, spatulatc. 



10. CERASTIUM. Linn. 



Calyx 5-parted. Petals 5, bifid. Stamens 10. Styles 6. 

 Capsule 1-celled, cylindrical or globose, dehiscent at the apex 

 with 10 teeth. Decandria. Pentagynia. 



1. C. vulgatum Linn. : viscidly pubescent, pale green ; stems nume- 

 rous, cespitose, suberect ; leaves ovate, obtuse, hirsute ; flowers dicho- 

 tomous, subumbelled, longer than the peduncles ; petals oblong, emar- 

 ginate, scarcely longer than the calyx ; capsule oblong, tapering, as 

 long again as the calyx. 



HAB. Fields and hills. Can. to Car. May Aug. $j$.Stem 

 6 10 inches high. Flowers white. Introduced. 



Mouse-ear Chickweed. 



2. C. viscosum Linn. : hairy and viscid, deep green ; stems nume- 

 rous, erect ; leaves lanceolate-oblong ; flowers in dichotomous umbels, 

 shorter than their pedicels ; capsule somewhat incurved, terete, as 

 long again as the calyx. 



HAB. Fields and road sides. Can. to Car, May -Aug. If. 

 Stem 6 12 inches high. Leaves rather obtuse. Petals white, 

 obovate, a little longer than the calyx. 



3. C. semidecandrum Linn. ; hirsute and viscid ; stems numerous, 

 erect ; leaves ovate-lanceolate ; flowers pentandrous, somewhat umbel- 

 led, shorter than their pedicels ; petals slightly notched ; capsule te- 

 rete, deflexed, as long again as the calyx. 



HAB. Dry hills. N. S. May Aug. <gfc. Perhaps only a va- 

 riety of the preceding. De Candolle places the C. semidecan- 

 drum of American authors, as a variety under C. vulgatum. 



