92 Muhlenbergia, Volume 3 
gione Nevadensi ad Sierra Valley J. Hillman). Ab anteceden- 
tibus bene distinctum. 
E. Piperi ochrocephalum 195. Involaca 6am longa, 
pedunculi florales hirsuti, perigonium ochroleucum brevius vil- 
losum. Hab. Oregon, ad Trout Creek in Wallowa Mts., alt. 
6-8000 ped. (Cusick n. 2433). 
Var. longiflorum 195. Involucra 8-9 m. longa, ped. 
florales glabri, perigonium flavissimo-aureum majusculum lon- 
gissime villosum. Hab. Montana, ad Columbia Falls (R. Wil- 
liams). 
Ertiogonum polyanthum Benth. Species duae sequentes 
huic sunt affines: 
E. marginale 195. ‘Totum sparse araneosum, candiculi 
sessiles diffusi, folia obovato-oblonga marginato-subrevoluta 
crassa acuta floccosa saepius ad margines purpurea, petioli rubri, 
inflorescentia corymbosa pedunculis pubescentibus, flores aurei 
3%m. longi. Hab. Colorado, ad North Park, Larimer Co. (G. 
Osterhout). 
E. glaberrimum 195. Virescens glaberrimum, caudi- 
culi longe stipitati recti, folia ad apicem caudiculorum fascicu- 
lata suboblongo-spathulata crassa obtusa marginibus subrevo- 
luta, petioli virides breves, inflorescentia capitata vel potius ad 
scapum capita 2-3 longe pedunculata, flores ochroleuci 5% m. 
longi. Hab. Oregon, in arenosis ad Cycan Valley (Cusick n. 
2745). 
Var. aureum 195. A specie differt foliis ovato-ellipticis, 
inflorescentia corymbosa aurea pedicellis pubescentibus. Forma 
mixta inter £. glaberrimum et E. marginale. Hab. Wyoming, 
ad Ferris Mountains (Nelson n. 4953). 
E. polycladon mexicanum 196. Folia plana, flores 
intense rosei vel purpurei. Hab. Mexico, Chihuahua ad Casas 
Grandes (C. Townsend and C. Barber n. 374). 
