50 DICOTYLEDONOUS PLANTS. 



HAB. Sandy fields. N. J. and Penn. May, June. . Stems 

 numerous, erect, filiform. Flowers on long slender peduncles. 

 Petals nearly obsolete, more slender and of a paler green than 

 in the former. Annual Pearl-wort. 



6. MOLLUGO. Linn. 



Calyx 5-parted. Petals none. Stamens 3 5. Styles 3. 

 Capsule 3-valved, 3-celled, many seeded. 



Triandria. Trigynia. 



M. verticillata Linn. : stems decumbent, dichotomous ; leaves verticil- 

 late, obovate-lanceolate, acute ; peduncles 1-flowered, verticillate. 

 HAB. Fields. Can. to Car. W. to the Columbia river. July- 

 Sept. 0. Stems prostrate. Flowers small, white, on axillary 

 peduncles. Indian Ckicfaceed. 



7. SPERGULA. Linn. 



Calyx 5-parted. Petals 5, entire. Stamens 5 10. 

 Styles 5. Capsule 1-celled, 6-valved, many seeded. 



Decandria. Pentagynia. 



1. S. arrensis Linn. : leaves whorled, with stipules at the base ; pani- 

 cle dichotomous ; flowers decandrous ; peduncles of the fruit reflexed; 

 seeds spherical, somewhat hispid, black, with a narrow margin. 



HAB. Sandy fields. Can. to Car. W. to the Columbia river. 

 June Aug. Q. Stem 6 12 inches high, swelling at the joints. 

 Leaves narrow-linear, whorled. Flowers white, in a panicle. 

 According to Dr. Hooker the margin of the seed varies greatly 

 in its breadth. Fl. Scot. 'Naturalized. Corn Spurrcy. 



2. S. sutrinoidcs Linn. : stem creeping ; leaves opposite, linear, 

 smooth, awnless ; peduncles solitary, very long ; petals oblong, obtuse, 

 as long as the calyx ; seeds kidney-form, punctate. 8. decumbcns EU. 

 S. nodosa Walt. 



HAB. Sandy fields. N.J. to Car. W.,to N. W. Coast of America. 

 June. . Stem 2 4 inches long, decumbent. Flowers erect, 

 white. Resembles Sagina procumbens very much. 



Pearl-wort Spurrey. 



8. STELLARIA. Linn. 



Calyx 5-parted. Petals 5, bifid. Stamens 1 0, or by abor- 

 tion 3 8. Styles 3. Capsule 1-celled, 6-valved at the 

 apex, many seeded. Decandria. Trigynia. 



1. & media Smith : stem procumbent, with an alternate pubescent, 

 lateral line ; leaves ovate or lanceolate, very smooth ; upper ones ses- 

 sile ; capsule deeply 6-valved, scarcely longer than the calyx ; seed* 

 Bubreniform, rugose. Alsine media Linn. 



