CALIFORNIA ACADEMY OF SCIENCES. 153 



concealing it: corolla persistent: legumes erect, obovate, 

 strongly wrinkled, laterally compressed. — Antioch; Tehach- 

 api; Mojave Desert. 



A. nigrescens, Nutt. 1. c. not of Gray. Lower and more 

 slender; spike loosely flowered: pedicels short, slender: 

 fruiting calyx ^ as long as the pod: legume ovate, lightly 

 wrinkled, pubescent, pendulous, strongly obcompressed 

 except the apex. — Lake county; Folsom, and all around the 

 bay of San Francisco. 



The name was unfortunately chosen, and is even to a cer- 

 tain extent false — the plant having much less of the black 

 pubescence than the former, and in fruit losing nearly all 

 trace of it. Phaca nigrescens, Pal. (A. nigrescens, Gray) does 

 not interfere with Nuttall's name, being now only a synonym 

 of A. multi floras, Gray. 



Purshia glandulosa. Dark green and glabrous except a 

 slight pubescence on the lower surface of the leaves, 4 — 8 

 feet high: young shoots covered with prominent glands: 

 leaves 3 — 6 lines long, 3 — 4 toothed, or cleft, and bordered 

 with translucent punctate^glands; stipules scarious, small; 

 flowers nearly sessile : calyx pubescent but not glandular : 

 petals pale yellow 5 — 8 lines long: capsule pubescent, obo- 

 vate, the body scarcely projecting beyond the calyx-lobes; 

 seed flesh-colored, very broadly obovate, the layer of resin- 

 ous matter between the coats very pale. — On the Mojave 

 side of Tehachapi Pass, May (flowers) and July, (a special 

 trip for the fruit) 1884. 



In appearance strikingly distinct from P. tridentata, with its 

 often almost silvery foliage. The seeds of the latter, also, 

 are black, and of very different shape from those of P. gland- 

 ulosa. 



Eryngiuai Harknessii. Erect, slender, 2—4 feet high, di- 

 chotomously branched above : radical and lower leaves con- 

 sisting only of the jointed fistulous petiole, often very long: 



