486 
short, lax, white hairs, leafy above, upper internodes about equal 
in length, each departing from the next lower at an angle of about 
45 degrees; petiole pubescent, 1-3 mm. long, standing at right 
angles to the internode above ; blade of leaves thin, margin ciliate, 
upper surface dark green, lower surface somewhat paler, both 
sparingly appressed-pubescent, especially on the rather prominent 
veins, in the lowest leaves often short-ovate and cordate, in the 
upper 2-5.5 cm. long, 5-10 mm. in greatest width, linear to 
oblong-lanceolate, tapering from below the middle to the obtusish 
apex, base narrowly sagittate to deeply auriculate with both lobes 
equal or with one longer; peduncles one to four near the base of 
the stem, 1-3 cm. long, slender, villous-pubescent, especially 
towards the summit, bearing two to five minute, pubescent bracts, 
_ one-flowered ; calyx pubescent, brown-purple, the tube 10-12 
mm. long, the limb about 1 cm. in diameter, reticulate-veined ; 
immature capsule villous, especially upon the ribs. 
Allied to A. Serpentaria L., but easily distinguished by the 
narrow leaves and very short petioles. Collected at Lake Ella, 
Florida, in 1894, by Mr. George V. Nash (No. 1139). 
vRuvus Biopcerrn n. sp. Stem leafy, angled, striate, pubes- 
cent towards the summit, bark reddish-brown ; leaves petioled, 
trifoliolate; petioles striate, pubescent, 2.5-4 cm. long; leaflets 
3-5 cm. long, 2.5—3 cm. wide, ovate or ovate-oblong, short-acumi” 
nate, base rounded or acutish, entire, thick, coriaceous, upper SUl 
face dark-green, smooth and shining, lower surface. paler with 
tufts of tawny hairs in the axils of the principal veins and at the 
base of the midrib, elsewhere quite glabrous, terminal leaflet on 
a petiolule 1-2 cm. long, lateral almost sessile; flowers 10 small, — ; 
axillary, thrice compound panicles; calyx persistent, very small, : 
5-lobed, lobes acute; fruit a yellowish-white, shining drupe, sub- 
globose, tipped with the rather stout base of the style, 2.5 mm. 
in longest diameter; stone ash-colored, 10-12 striate, minutely 
roughened. me 
Apparently an erect shrub, flowers not seen. Closely allied 
to Rhus radicans. It may easily be distinguished by the smaller, 
short-acuminate but not acute, thick and coriaceous leaflets, the 
upper surface shining and perfectly smooth, the lower surface 
pubescent only in the axils of the veins and at the base of the 
midrib, the margins not ciliate; and by the fruit, about half a 
large as that of typical R. radicans. : coe 
Rhus radicans has the upper surface of the leaf almost si 
_ pubescent at least on the midrib, the lower surface pu ; 
__ over and the margins ciliate. A peculiar form from Sonora, 
