250 ROBINSON. 



extrorsum fere ab incepto denuo ramosis) supra i:)ul\erulo-piiberulis 

 subtus multo pallidioribus griseis molliter tomentellis et atomiferis; 

 petiolo usque ad 6 dm. longo; corynibis compositis triehotomis, 

 partialibus convexis 6-10 cm. diametro densis multicapitulatis; capi- 

 tulis breviter pedicellatis ca. 11-floris 7 mm. altis 3.2-3.5 mm. diametro; 

 involucri subcylindrici squamis ca. 18 valde inacqualibus ca. 4-seriatim 

 laxius imbricatis tenuibus stramineis, interioribus oblongo-linearibus 

 apice rotundatis, exterioribus gradatim brevioribus obtusis ciliolatis, 

 extimis ovatis acutiusculis dorso villosulis; receptaculo minimo 

 planiusculo glabro; corollis ut videtur albidis 4 mm. longis, tubo 

 proprio gracili fauces sensim paullo ampliatas subaequante, dentil^us 

 limbi 5 recurvatis; styH ramis filiformibus; achaeniis 2 mm. longis in 

 faciebus et in angulis hispidulis; pappi setis albis capillaribus ca. 36 

 inacqualibus, aliis ca. 3.5 mm. longis, aliis quartem vel tertiam partem 

 brevioribus. — Venezuela: at Sanchorquig fa name written with fair 

 clearness upon the original label but not found on any available map), 

 Eggers, no. 13,413 (type U. S., phot. Gr.). 



Although this species in foliage and general form of the inflorescence 

 slightly suggests E. rnacwphi/llum L., it differs in many important 

 details (fewer florets, cylindrical rather than campanulate involucre, 

 glabrous receptacle, etc.) and is clearly of § Subimbricata. Although 

 cylindrical in form the involucre does not have the texture or close 

 imbrication which characterize § Ct/IinrJrocephala. 



E. (§ Subimbricata) magdalenense, spec, nov., perenne her- 

 baceum erectum vel indinatum 3-9 dm. altum; ramis brunneis 

 obscure hexagonis mox glabratis laevissimis; ranuilis inflorescentiae 

 aliquid cum pilis minutis incurvis instructis; foliis oppositis (vel 

 rameis alternis) anguste ovatis attenuato-acuniinatis basi rotundatis 

 argute serratis crassiuscule membranaceis paullulo succulentis utrinque 

 viridibus et glabris 4^.5 cm. longis 2-2.5 cm. latis a basi 3(-7)-cos- 

 tatis; venulis reticulatis translucentibus; petiolo 8-14 mm. longo; 

 ramis primariis inflorescentiae late patentibus curvato-adscendentibus 

 cum ramulis 3-7 brevibus subaequalibus (1-3 cm. longis) instructis; 

 his 2-3-foliatis apicem versus floriferis 5-20-capitulatis; capitulis ca. 

 25-floris 6.5 mm. altis 5 mm. diametro; involucri campanulati 5 mm. 

 alti et crassi squamis lanceolatis acutis minute ciliolatis ca. 3-seriatis 

 subherbaccis persistentibus et deniffue brunnescentibus; corollis all)is 

 4 mm. longis, tubo proprio ca. 7 mm. longo gradatim in fauces cylin- 

 dricas ampliato; achaeniis 1.7 mm. longis nigris minute in costis 

 pallidioribus liispidulis. — CoLOMBl.\: common on open ridg(>s, Sierra 

 del Libano, alt. 1680-1980 m., near Santa ]\Iarta, //. //. Smith, no. 

 1993 (type Gr.). 



