CARYOPHYLLACE.E. (PINK FAMILY.) 33 



2. L. Kingii, Watson. Pubescent throughout : petals exserted, the short and 

 flat blade rather deeply emarginate ; appendages entire or toothed ; claw 

 dilate, rather broadly auricled : filaments ciliate. — L. Ajanensis ? of Bot. King's 

 Exp. 37. Peaks of the Uintas and iu N. W. Wyoming. 



* * Flowers rarely solitary: seeds tuberculate. 



3. L. Drummondii, Watson. Rather stout, finely glandular-pubescent 

 above: leaves narrowly oblanceolate : flowers few, on stout often elongated 

 pedicels : petals included or nearly so, white or purple, the entire or emarginate 

 blade narrower than the auricled claw ; appendages minute. — Silene Drummondii 

 of the earlier Reports. Colorado, Wyoming, and northward. 



4. L. Pairyi, Watson. Slender, finely glandular-pubescent above : leaves 

 linear : flowers with the lateral pedicels mostly short : petals long-exserted, pur- 

 plish, the broad blade cleft to the middle and with a short narrow lobe on each 

 side ; appendages quadrate or ovate, crenate ; claw broadly auricled. — Proc. Am. 

 Acad. xii. 248. N. W. Wyoming, Parry 



3. CEEASTIUM, L. Mouse-ear Chickweed. 



Stamens 10. Capsule often incurved, thrice the length of the calyx. — 

 Mostly pubescent or hirsute low herbs : flowers white, in terminal leafy or , 

 scariously bracted dichotomous cymes. 



1. C. nutans, Raf. Annual, viscid-pubescent, erect : leaves narrowly oblong 

 or linear-lanceolate, clasping, the lowest spatulate • cyme open, rather many- 

 flowered : pedicels often nodding or reflcxed in fruit: petals slightly longer than the 

 sepals : capsule curved. — Across the continent and southward into northern 

 Mexico. 



2. C. alpinum, L. Silky-hirsute, decumbent, few-flowered : leaves elliptical- 

 ovate : peduncles more or less elongated : petals bifid, twice the length of the 

 hairy sepals : capsule nearly twice as long as the calyx. 



Var. Behringianum, Regel. Petals and capsule half longer than the 

 calux, shorter than the pedicels : stems 2 to 4-ftowered. — C. vulgatum, var. 

 Behringianum, of Fl. Colorado, Haycl. Rep. 1872, and Bot. King's Exp. 

 Mountains of Colorado and W. Wyoming. 



3. C. arvense, L. Perennial, downy with reftexed hairs, cespitose : leaves 

 linear to linear-lanceolate, clasping : cyme few-flowered : pedicels erect or nodding : 

 petals nearly twice longer than the sepals : capsule little exceeding the calyx, nearly 

 straight. — Colorado and northward through Utah, Montana, and Wyoming, 

 and across the continent. , 



4. STELLAR I A, L. Chickweed. 



Stamens 10 or fewer. Styles 3, or rarely 2, 4, or 5. Capsule globose to 

 oblong. — Low herbs, mostly diffuse : leaves rarely subulate : flowers white, 

 solitary or cymose : stems mostly 4-angled. 



* Bracts small and scarious. 

 *- Petals none. 

 1. S. umbellata, Turcz. Glabrous : stems very slender, ascending from 

 slender creeping rootstocks, which are covered with orbicular scales : leaves 



3 



