195 



tomentosa acute dentata. Hal). Oregon, in arenosis ad 

 Cycan Valley (Gusick n. 2751); California, in regione 

 Nevadensi ad sierra Walley (J. Hillnian). Ab antecedenti- 

 bus bene distinctum. 



Eriogonnm Piperi Greene p. oc h roc epha lain G., in- 

 volucra 6 m. longa, pedunculi florales hirsuti, perigonium 

 ochroleucum brevius villosum. Hab. Oregon, ad Trout 

 Creek in Wallowa Mts, alt. 6-8000' (Gusick n. 2433). 



— y longiiloruui G., involucra 8-9 m. longa, ped. florales glabri, peri- 



gonium flavissimo-aurcum majusculum longissime villosum. 

 Hab. Montana, ad Columbia Falls (R. Williams). 



Eriogonam polyanthum Benth. Species duae sequentes 

 huic sunt affines : 



Eriogoniiui marginale Gdgr sp. n. Totum sparse 

 araneosum, caudiculi sessiles diffusi, folia obovato-oblonga 

 marginato-subrevoluta crassa acuta floccosa saepius ad 

 margines purpurea, petioli rubri, inflorescentia corym- 

 bosa pedunculis pubescentibus, flores aurei 3 1/2 m. 

 longi. Hab. Colorado, ad North Park, Larimer Co. 

 (G. Osterhout). 



Eriogonum glaberrîuiani Gdgr sp. n., virescens 

 glaberrimum, caudiculi longe stipitati recti, folia ad 

 apicem caudiculorum fasciculata suboblongo-spathulata 

 crassa obtusa marginibus subrevoluta, petioli virides 

 breves, inflorescentia capitata vel potius ad scapum capita 

 2-3 longe pedunculata, flores ochroleuci 5 1/2 m. longi. 

 Hab. Oregon, in arenosis ad Cycan Valley (Gusick 

 n. 2745). 



— p. aureuui G., a specie differt foliis ovato-ellipticis, inflorescentia 



corymbosa aurea pedicellis pubescentibus. Forma mixta inter 

 E. glaberrimum et E. marginale. Hab. Wyoming, ad Ferris 

 Mountains (Nelson n. 4953). 



