OF ARTS AND SCIENCES : JANUARY 26, 1870. 185 



++ ++ Folia pubescentia nunc glabrata, nunquam lanata vel to- 

 mentosa ; petioli elongati. Perigonia flavula, extus crebre hirta, 

 involucro minimo 4 - 5-fido paucifloro fere duplo longiora, seg- 

 mentis conforrnibus subrequalibus. Bracteoe baud lanatae. Pani- 

 cula e scapo rigidulo soepe fistuloso effuso-ramosissima, elatior, 

 pedieellis divaricatis capillaribus tenuissimis (semi-ultrapollicari- 

 bus) glaberrimis involucris multoties longioribus. 



70. E. TRiCHOPODUii, Torr. in Emory, Rep. of Reconn. p. 151, 

 1848 (perperam E. trichopes), Bentb. in DC. 1. c. Foliis tenuiter 

 pubescentibus vel supra glabris ovalibus rotundisve nunc subcordatis ; 

 panicula3 ramis elongatis cum scapo brevi vel brevissimo rigidulis ; 

 pedieellis tenuissimis ; involucro semilinea sagpius breviore ; perigonii 

 segmentis ovato-lanceolatis. — S. W. Texas through New Mexico and 

 Arizona to S. E. California. In the stronger specimens the scape is 

 more or less fistulous, but not inflated, and, with the very branching 

 panicle, from one to two feet high. 



71. E. inflatum, Torr. in Frem. 2 d Rep. & in DC. 1. c. Foliis 

 hirsuto- seu velutino-pubescentibus nunc glabratis orbicularis vel ro- 

 tundo-cordatis ; scapo elongato superne fusiformi-inflato ; panicu- 

 lae ramis rigidulis inferne longe nudis, primariis raro inflatis ; pedi- 

 eellis capillaribus ; involucro semilinea nunc subbreviori nunc longi- 

 ori ; perigonii segmentis ovatis (demum lineam longis). — In dry or 

 desert districts of California, Arizona, and Nevada. E. cordatum, 

 Torr. in DC. 1. c. (of which the specimens are lost) is doubtless a 

 glabrate and depauperate state of this species, or possibly of the fore- 

 going. The two are disposed to run together. 



.n. ++ ++ Folia utrinque glabra (an glabrata?) ut tota planta. Peri- 

 gonia involucro vix lineam longo paucifloro longissime pedicel- 

 lato haud longiora. 



o 



72. E. Gordoni, Benth. in DC. 1. c. Foliis subcoriaceis rotundis 

 glabris ; pedunculis e radice pluribus brevibus in paniculam repetite 

 dichotomam laxam divisis, ramis gracilibus ; pedieellis subcapillaribus 

 ultrapollicaribus erectis ; involucro turbinato-campanulato 5-dentato ; 

 perigonii glaberrimi (albi vel subrosei ?) segmentis exterioribus ovatis 

 interiora oblonga paullo superantibus ; bracteolis minute glandulosis. 

 — " In the Rocky Mountains on the Platte, Gordon," in herb. Hook. : 

 found only by Gordon, and in specimens nearly past flowering. About 



vol. viii. 24 



