162 PROCEEDINGS OP THE AMERICAN ACADEMY 



* Ovarium supra medium laxe villosum. 



20. E. pyrol^folium, Hook, in Murray, Bot. Exped. Oregon, & 

 Kew Jour. Bot. 5, p. 395, t. 10. Glabratum ; foliis in caudice longe 

 fusiformi conf'ertis obovatis seu lato-spathulatis petiolatis coriaceis ; 

 bracteis binis umbellam parvam e radiis 3-5 brevissimis stipantibus ; 

 involucro campanulato villoso ; perigoniis albidis ? extus basim versus 

 parce villosis ; filamentis basi tantum hirsutulis. — Mount Shasta, Cali- 

 fornia, Mr. Jeffrey (herb. Hook.). Scapes a span high, bearing traces 

 of loose villous hairs, which are more decided on the petioles. These 

 lead us to infer, the flowers being essentially alike, that the following 

 is a downy form of the same species. 



Var. coryph^eum: nanum, scapo petiolisque villoso-lanatis ; foliis 

 ovatis (semipollicaribus) longe petiolatis albido-tomentosis, pagina su- 

 periori demum glabrata, involucris in umbella 1-3. — Summit of the 

 Cascade Mountains, about lat. 49° on the east side, at the height of 

 7,500 feet, Lyall. Flowers fully two lines long, apparently white or 

 flesh-colored. 



* * Ovarium glaberrimum. 



21. E. androsaceum, Benth. in DC. 1. c. Pumilum ; foliis in cau- 

 dicibus dense casspitosis confertis oblanceolatis spathulatisve in petio- 

 lum attenuatis supra glabratis subtus albo-lanatis ; scapo 2 - 3-pollicari 

 rarius unifoliato ; umbella 4-7-radiata simplici nunc subcapitata 

 bracteis verticillatis linearibus stipata ; involucris oblongo-campanulatis 

 5-dentatis ; perigonio extus basi pubescente ; filamentis fere glabris ; 

 embryonis radicula in cotyledonibus brevioribus orbiculatis valde ex- 

 centricis accumbenti-inflexa. E. ccespitosum, Benth. Eriog. ; Hook. 

 Fl. Bor.-Am., non Nutt. — Alpine region of the northern Rocky Moun- 

 tains, Drummond, Bourgeau. Perigonium two, or in fruit nearly three, 

 lines long, the inner segments then more lengthened than the outer. 



22. E. Lobbii, n. sp. Humile, primum tomento arachnoideo permolli 

 (proeter flores) incanum ; foliis in caudice crasso confertis subrotundis 

 in petiolum saapius longiorem subito contractis crassiusculis, pagina su- 

 periori nunc denudata ; scapo spithamreo inferne rarius unifoliato ; um- 

 bella subcomposita densa bracteis verticillatis fbliaceis obovatis seu 

 lanceolatis stipata; involucris campanulatis 5-7-fidis; perigonio 

 glaberrimo ; filamentis inferne villosis ; embryonis radicula in cotyle- 

 donibus obovato-rotundis excentricis parum brevioribus subinflexa. — 

 California, Lobb in herb. Hook. no. 190. High mountain near Don- 



