' 
1895.] Briefer Articles. 425 
8,9 and 10. The first three steps in the dev ae Sgt of the embryo-sac from 
the lower cell of the four shown in Fig. 7. teguments are not shown.—Fig. 
11. Outline ough of embryo-sac with egg Bite and very large oe 
cells.—Fig. 12, Ovule borne on a long stalk. X 150. Figs.1—I! 
/ Laphamia ciliata, sp. nov.—Perennial, fruticose, 15-30™ high, with 
slender terete spreading branches, cinereous-pubescent throughout: 
leaves alternate or the lower sometimes opposite, deltoid or ovate, 
more or less punctate especially on the upper less pubescent green 
surface, somewhat decurrent on the petioles, these about half as long 
as the blades; lower leaves 1o0-15™" long and about as broad, crenate 
or irregularly dentate: upper leaves decreasing in size, narrower in 
proportion to their length and more deeply toothed: heads on slightly 
clavate pedicels 5—15™™ long ey se the short upper branches, 
light-yellow, about 40-flowered, 5-7™ in diameter; involucral scales 
usually 12, equal, obscurely baeaae oblanceolate, about 2™ wide 
near the apex, persistent, spreading or slightly reflexed at maturity: 
rays nearly white, crenately 3-toothed, 7-nerved, pistillate, about 3™™ 
ong and 2™ wide above the throat; disk flowers perfect, yellow, 4™™ 
long including immature akene 2™" long; style branches exserted, re- 
curved, 1™" long, minutely pubescent; akenes flattened, oblong, 
slightly curved, 2™™ long, 0.5™" wide, black, with white callous ciliate 
Margins; pappus a callous crown with 2 subequal Sap. coeneie bristles 
2™ long, from opposite margins.—Type specimen in National Her- 
barium collected by D. T. MacDougal, on rocks along Pine eek near 
Pine, Arizona, August 21, 1891, no. 676. Cotype in National Herba- 
rium, collected by J. W. re on Tucson mountains, near Tucson, 
Arizona, May 15, 1892, no 
This species has the habit of Laphamia rupestris and agrees in all 
respects except the akene with the generic characters of Laph amia. 
The akene with its cartilaginous ciliate margin agrees with the char- 
acters of Perityle. The small many-flowered heads and the ciliate- 
margined akenes with a pappus of two slender bristles distinguish it 
tom any similar species of Laphamia, while the fruticose much 
branched habit and nearly entire leaves distinguish it from any of the 
known species of Perityle —LYsTER H. DEweEY, Washington, D.C. 
