OP ARTS AND SCIENCES. 469 



row, purplish, 4 or 5 lines loug ; petals whitish, exserted, the blade 

 very narrowly linear ; filaments exserted : pods (immature) ascend- 

 ing, stipitate, 2 inches long, beaked with a rather slender style half a 

 line long or more. — In Bear Valley, San Bernardino Mountains, 

 California, ou stony hillsides near the upper lake (S. B. Parish, June, 

 1886). Somewhat resembling T. sagittatum and T. NattalUi. 



SiLENE LONGiSTYLis, Engelm. in herb. Cespitose with a slender 

 much branched caudex, finely pubescent throughout with very sliort 

 spreading subglandular hairs ; stems slender, a foot higli or less : 

 leaves narrowly oblanceolate, acute, an inch long or less, the cauline 

 1 or 2 pairs : inflorescence loose and pedicels slender : calyx ovate- 

 cylindrical, 3 lines long, the teeth broadly ovate ; petals white, the nar- 

 row claw scarcely auricled and very pubescent, the blade cleft nearly 

 to the base into 4 elongated linear lobes, and the narrow appendages 

 entire : stamens and styles long-exserted : capsule nearly sessile. — 

 On Scott's IVIountains, northern California, at 6,000-7,000 feet alti- 

 tude (Engebnann, August, 1880) ; Ashland Butte, southwestern Oregon 

 {Henderson, June, 1886). Near S. Lcmmoni and aS*. Palmeri. 



Drymaria viscosa.. Annual, prostrate, diffusely branched; stems 

 and branches glabrous or nearly so : leaves linear-spatulate, some- 

 what fascicled, 6 lines long or mostly much less, glandular-pubescent 

 or glabrate : flowers nearly sessile in loose corymbs : sepals viscid- 

 pubescent, scarcely a line long ; petals included, bifid : capsule oval, 

 few-seeded, equalling the sepals. — At Socono in northern Lower 

 California {O. R. Orcutt, April, 1886). 



Burs ERA Schafpneri. Bran chiefs stout and rigid: leaves gla- 

 brous and somewhat glaucous, pinnate, the rhachis bisulcate above, 

 not margined ; leaflets 1 to 3 pairs, one or both of the upper pair 

 sometimes confluent with the upper leaflet, obovate, obtuse, cuneate at 

 base, entire, faintly nerved, 3 to 5 lines long: fruit solitary or clus- 

 tered at the ends of the branchlets on stout reflexed pedicels (1 or 2 

 lines long), triangular-obovate, acutish, 3 or 4 lines long. — In the 

 Morales and San Miguelito Mountains, near San Luis Potosi (90 and 

 91 Sfwffner, 1876) ; distributed as Pistacia Mexicana. 



Lupixus CusiCKii. Dwarf (2 to 4 inches high), much branched 

 from the biennial or perennial (?) root, canescent throughout with soft 

 appressed hairs : leaflets 5 to 8, oblanceolate, slightly less villous 

 above, 3 to 9 lines long, the petioles usually elongated : peduncles 

 mostly very short, the loosely few-flowered racemes shorter than the 

 leaves : flowers purple, 3 or 4 lines long ; calyx narrowly lobed, 

 1| to 3 lines long; banner glabrous ; keel ciliate : pods villous, with 



