184 CARYOPHYLLACEyE. Stellari-a. 



minute, dark broTvn, tuberculate. — Habit of Cerastium nutans. The sinus of 

 the petals is so shallow that the plant might be ranked with Arenaria almost 

 as well as with Stellaria. 



6. S. macropetala: glabrous, branching from the base; stems erect, slen- 

 der ; leaves linear and very narrow, somewhat fleshy, acute ; cyme few- 

 flowered ; petals obovate-spatulate, 2-lobed, more than tw^ice the length of 

 the ovate-lanceolate 3-ribbed sepals. 



Arkansas, Nuttall ! Dr. Pitcher ! Dr. Leavenworth ! April. — (5) Stem 

 5-10 inches high. Leaves an inch or more long ; the lower ones rather ob- 

 tuse, as long as the internodes. Flowers smaller than in S. Nuttallii, but 

 with the petals longer in proportion, much more attenuate below, and with 

 a deeper and no.rrower sinus. Sepals acute, rather rigid, not scarious. 



7. S. unijiord (Walt.) : glabrous, branching from the base ; stems erect, 

 very slender ; leaves subulate-linear, acute ; peduncles axillary, filiform, 1- 

 flowered ; petals obcordate with a shallow sinus, twice the length of the ob- 

 long acutish nearly nerveless sepals. — Walt. Car. p. 141. Arenaria glabi a, 

 Eli. sk. 1. p. 520, not of Michx. 



Swamps, N. Carolina ( Croom .') to Georgia. May. — Stem 10 inches or 

 more high. Leaves an inch long, hardly a line wide, mucronate. Peduncles 

 solitary, not bracteolate, 2-3 inches in length. Sepals rather membrana- 

 ceous, with scarious margins. Capsule ovoid, as long as the calyx. — Resem- 

 bles S. macropetala much more closely than Arenaria glabra, with which it 

 has been generally confounded. Habit wholly that of a Stellaria. 



8. S. cerastoides (Linn.) : stems csGspitose and decumbent, somewhat 



dichotomous ; leaves oblong, pubescent ; peduncles in pairs, 1-nowered, de- 

 flexed in fruit ; petals exceeding the obtuse sepals ; capsule oblong, almost 

 twice the length of the calyx. DC. prodr. 1. p. 398; Hook, plants oj Scy 

 bine's voy. in trails. Linn. sac. 14. p. 8. 

 Greenland, Sabine. 



9. S. humifusa (Rottb.) : glabrous ; stems procumbent, branched ; leaves 

 ovate, sessile, fleshy ; peduncles solitary, terminal, short, 1-flowered ; petals 

 2-parted, rather longer than the acutish nerveless sepals. Hook. — " Rottb. 

 in act. Hafn, 10. i. 4" ; Hook.! in Parrifs 2nd voy. app. p. 391, ^ Ji. 

 Bor.-Am. 1. j). 97 ; Bong. veg. Sitcha, I. c. p. 127. S. crassifoUa, Cham. 

 ^ Schlecht. I. c. Me Hook. Arenaria thymifolia, Pursh ? 



Greenland, Arctic Sea! Sitcha. — Stems 2-3 inches high. Peduncles 

 filiform. Sepals obscurely 3-nerved. Bongard. 



10. S. gracilis (Richardson) : glabrous ; stem weak ; sterile branches 

 gemmiferous ; leaves lanceolate, someAvhat succulent ; peduncle solitary, 

 axillary or terminal, elongated, 1-floAvered ; petals 2-parted, longer than the 

 glabrous acute nerveless sepals. Hook. — Richards, app. Frankl. journ. 

 p. 17; Hook. fl. I. c. 



Hudson's Bay, dec, Richardson. — Capsule 6-valved. 



§ 2. Styles 3 or 4 : petals more or less peri gy nous, often minute or wanting. 

 (Spergulastrura, Michx. — Mieropetalon, Pers. — Larbroea, St. Hil.) 



11. S. longipes (Goldie): shining or glaucescent; stems decumbent at 

 the base, or procumbent with erect or ascending branches ; leaves mostly 

 rigid, linear or lanceolate (broadest at the base), acute ; peduncles (cymose 

 or nearly simple) Avith rather large ovate scarious bracts ; petals a Uttle 

 longer than the ovate, obtuse or acutish, obscurely 3-nerved, scariously-mar- 

 gined sepals. 



a. slender; leaves more or less flaccid, rather spreading; branches 6-10- 

 flowered; peduncles and pedicels filiform; the terminal (middle) ones elon- 



