TROPICAL AMERICAN COMPOSITAE. 25 



ulum aliter glaberrimuni ; caulibus ut ^-idetu^ erectis gracilibus 

 paullo (post exsiccationem) costato-angulatis fusco-brunneis ad 

 inflorescentiam foliosis; internodiis 4-5 cm. longis; foliis oppositis 

 petiolatis lanceolato-oblongis utroque acuminatis paullo undulatis 

 obscure remoteque cuspidato-denticulatis penniveniis (venis prin- 

 cipibus utroque 4-6 prorsus curvatis) chartaceo-membranaceis supra 

 atro\dridibus sublucidis subtus paullo pallidioribus opacis utrinque 

 glabris delicatule reticulato-venosis, maximis 1.6 dm. longis 6 cm. 

 latis, petiolo supra canaliculato b^e^'issime fusco-puberulo 4-7 mm. 

 longo; panicula breviter lateque pyramidata 11 cm. alta 17 cm. 

 diametro oppositiramea basi foliaceo-bracteata; ramis gracilibus 

 divaricatim patentibus apicem versus solum capituliferis; capitulis 

 ca. 20-floris 4.5 mm. altis et crassis b^e^^ssime pedicellatis sub- 

 congestis; involucri campanulati squamis ca. 21 fusco- vel viridi- 

 stramineis ciliolatis aliter glabris modice gradatis, interioribus ob- 

 longis vel linearibus, extimis ovatis acuminatis 5-costulatis apice 

 saepe recurvatis; corollis 2.5 mm. longis paullo sursum gradatim 

 ampliatis glabris, dentibus limbi recurvantibus ; achaeniis (imma- 

 turis) glabris 1.7 mm. longis; pappi setis ca. 30 vix scabratis 2 mm. 

 longis. — Peru: Depart. Loreto, near Tarapoto, Spruce, no. 4546 

 (K., phot. Gr.). In habit recalling E. orgyale DC. of eastern Brazil, 

 which however has pubescent conspicuously dentate leaves, 6-12- 

 flowered heads, and other differences. 



E. (§ Subimbricata) Pachanoi, spec, nov., suffruticosum 3 dm. 

 vel ultra altum ramosissimum ; caulibus teretibus plus minusve 

 flexuosis basin versus delapsu foliorum nudatis nodulosis juventate 

 cum indumento brevi lanuginoso griseo-fulvescente obtectis; ramis 

 gracilibus saepissime oppositis curvato-adscendentibus foliosissimis , 

 internodiis 3-12 mm. longis; foliis ovato-lanceolatis acutiusculis basi 

 obtusis vel rotundatis supra mediam partem serratis (dentibus utroque 

 3-4) supra subaAeniis obscure praecipue in nerAo medio puberulis 

 subtus vix pallidioribus laete viridibus punctatis glabris supra basin 

 3-nerviis 1.5-2.2 cm. longis 7-10 mm. latis; corymbis pluribus ca. 

 3 cm. dia.metro valde convexis subovoideis ramulos terminantibus a 

 ramis foliiferis superatis; pedicellis 4-8 mm. longis fulvescenti- 

 pubescentibus bracteolatis; capitulis ca. lO-floris 8 mm. altis 5 mm. 

 diametro; involucri campanulati ca. 3-seriati laxe imbricatis squamis 

 ca. 13 \-iridibus vel purpureo-tinctis ciliatis dorso pubescentibus et 

 glanduliferis, extimis brcA-ibus ovatis vel lanceolato-oblongis vix 

 acutis, intermediis late spatulato-ovatis apice rotundatis, intimis 

 lineari-oblongis ; corollis ut videtur purpureis 4.3 mm. longis supra 



