230 BOTANY. 
ERI0GONUM FASCIOCULATUM, Benth., var. poLIFoLIUM, Gray (Watson, J. 
c. p. 302).—Nevada, 1871, 1872, Watson’s Report. 
ERI0GONUM coRyMBosUM, Benth. (Watson, l. c. p. 303).—Arizona, 1871, 
1872, Watson’s Report. 
ERIOGONUM MICROTHECUM, Nutt. (Watson, 1. ¢. p. 303).—Utah, 1871, 
1872, Watson’s Report; also var. Errusum, T. & G., Arizona, and a form 
between var. CONFERTIFLORUM, T. & G., and var Fenpierranum, Benth., but 
with larger flowers than usual. Var. errusum, T. & G., Upper Arkansas, 
Colorado, September, 1873, Wolf (22). 
ERIOGONUM BREVICAULE, Nutt. (Watson, J. ¢. p. 304)—Utah, 187), 
1872, Watson’s Report. 
ErioconuM RAcEMosuUM, Nutt. (Watson, J. ¢. p. 304).—Nevada and 
Utah, 1871, 1872, Watson’s Report. 
Ertoconum Wricut, Torr. (Watson, /. ¢. p. 305).—Sanoita Valley, 
Arizona, at 5,850 feet elevation, August, 1874, Rothrock (593), and Camp 
Grant, September (726). 
Ertoconum GraciLe, Benth., var. errusum, T. & G. (Watson, l. ¢. p- 
305).—Nevada, 1871, 1872, Watson’s Report. 
. Extoconum Hermann, Dur. & Hilg. (Watson, J. c. p. 306).—Nevada, 
1871, 1872, Watson’s Report. 
Eriogonum DEFLExuM, Torr. (Watson, J. c. p. 306).—Arizona, 1871, 
1872, Watson’s Report. 
Ertogonum cernuum, Nutt. (Watson, J. c. p. 308)—Twin Lakes, Colo- 
rado, July, 1875, Wolf (23). Var. reyug, T. & G., Nevada, 1871, 1872, | 
Watson’s Report. 
Ertocgonum TricHopopum, Torr. (Watson, J. ¢. p. 309).—Ash Creek, 
Arizona, at 3,080 feet elevation, July, 1874, Rothrock (332). 
Ertoconum 1nrLatum, Torr. (Watson, J. ¢. p. 309).—Nevada and Ari- 
zona, 1871, 1872, Watson’s Report. 
Erioconum ABeRTIANUy, Torr. (in Emory’s Reconn. p. 151; Torr. & 
Gray, Proce. Am. Acad. 8, p. 189).—Villous or loosely and softly pubescent, 
paniculately branched, 1 to 14 feet high; branches erect, often leafy almost 
to the apex; lower leaves ovate or subcordate, petioled, often undulate, 
those of the branches lanceolate or linear, subsessile; involucres more or 
