CATALOGUE. 
251 
filaments ; stamens exserted, naked ; style united to the middle ; ovary ob- 
long, hairy ; capsule globose, minutely pubescent and glandular, equaling or 
slightly exceeding the calyx ; seeds 4, minutely warted on the back and 
transversely ridged on the face. — From the Platte (James) to Northern 
Texas, (Pope,) New Mexico, and Chihuahua, and collected by Beckwith in 
Humboldt Valley, Nevada ; Southern Utah, (Palmer.) 
PnACELiA CRENULATA, Torr. Annual, erect, 1° high, branching above, 
hispid-pubescent and somewhat glandular; leaves oblong, pinnaiifid, I lie 
8-12 oblong segments incisely toothed, ciliate ; llowers in Icrniiiial com- 
pound racemes, which are dense and slowly evolved ; pedicels much sliorier 
than the calyx, which is less than half the leiigili ol" ilic corolla; sepals 
linear-lanceolate; corolla rotate-campanulate, 3-4" long, of a deop-violet 
color, the lobes crenulate ; the stamens and deeply 1)iriirca1c sly!.- !oiiir_,-\- 
serted, filaments naked; capsule globose, in diaineler; scrds 4, finely 
punctate. — Trinity Mountains, Nevada ; 4,500 feet altitnd(' ; Muy. (S73.) 
PiiACELiA TANACETiFOLiA, Beutli. DC. Prodr. 9. 299. Annual, :5'-2^ 
high, suberect, branches lax and slender, more or less hispid or scabrous- 
pubescent or the stem and branches glabrate ; leaves variable, 2-0' long, 
1-2-pinnatifid, the 3-7 pairs of segments oblong and incised denlate ; calyx- 
lobes linear or lanceolate, usually dilated and foliaceous above, very pilose, 
especially on the margins ; corolla canipanulate, long, scarcely exceeding 
the calyx, the appendages small and encirclin- 11h" filanienis: style bifureale 
to below the middle, hairy at base ; ovary hairy, 4-ovuled : capsule nearly 2" 
long, ovate, acute, pubescent; seeds nearly long, pit led.- Fron. West- 
ern Texas and New Mexico to Southern and Central Calitonna ; \\v>\rvn 
Nevada, (Stretch and Anderson.) Lower canons and st rean.-banks of ihe 
East and West Humboldt Mountains and in Keese \'ailey, X.nada ; 5-(;,..0(. 
feet altitude ; June-August. (874.) 
PiiACELiA Palmeri, Torr. Biennial, 6-15' high, erect, sin.ple, <leuscdy 
pubescent and glandular; radical an<l cauline leaves nunu rous and croude<l, 
1-2' long, lanceolate, subpinnatifid douldy serrate, .eareely pet,- 
oled; racemes numerous and nearly ses^ih- ; calyx-lobes oi f 
flowers linear-oblong, acutish, half the len.tli of the tubular. up.. 
3" long corolla; appendages short, above the base of the nak.d hlament.: 
stvle hairy at base ; capsule globose, I" or more \n diameter, ol.tu>e, pubes- 
