142 



gustae, parum conspicuae, flavae. Achaen!a brevia, recta, striata, haud 

 attcnuata, fusco-atra. Pappus rigidus, eximic rufescens. 



1 H. Thyrsoideum * plcbejum, phyllopodum , caulc scapifor- 

 mi submonophyllo glabro, foliis lanccolatis acutis pills sparsis 

 elongatis setosis, thyrso racemose, involucris nigrohirsutis , 

 pappo rufescentc. 



II. mexicannm. Lessing in Linn. 1830. p. 133? at involucra cam- 

 pan. Cfr. n. 101. 



Loco et regione cum priori convenit, at rarius; lectum in pincto 

 circa Vacqncria del lacal (i 0,000') in monte Orizaba. Liebman. 



Facies a priori diversissima antcccdcnlium, at nuila nota esscnliali 

 diflert. Caulis tenuior, flstulosus tainen, 1-2 phyllus, glabcr, strialus. 

 Folia radicalia pauca, glanduloso-denticulata; caulinnm in medio caulis 

 rcmotum lineare. Anthcla longe discrcta, thyrsoidco-racemosa , laxa, 

 7-12-cepbala; rami inferiores triccphali. 



lOo. II. imvvuroi, phyllopodum, radice obliqua tomentoso- 

 comosa, caulc simplici folioso foliisquc scssilibus lanceo- 

 latis denticulatis liirsutis, anlhela contigua cont/lomcrala, 

 capitulis globosis Inna densissima intricato-compacta cana 

 obvolutis, squamis obtushisculis, acbacaiis brevibus trun- 

 calls, "pappo fuscescente". 



II. crianlhuni. Ilumb. et llonpl. nov. Gen. If. p. 3. t. 302. antliela 

 magis clFusa largiori, quam in nostro. 



In America meridional! (Venezuela?) Humb. et Bonplund. 

 Hue refero plantain in Ilarttviy cxsicc. n. H77, lectam in 

 Quito. 1843. 



Alia nobilissima species, indumcnto involucri qunmvis pnllido 

 (siccitate ferruginascente' , tamen cum //. tristi eximie analoga. Radix 

 valida, obliqua, suhhori/.onlalis, fibris validis simpiicibus pcrpendiculari- 

 bus; ad coliuin laniiijinoso-comosa. Caulis e basi adscendcnle ereetus, 

 simplex, pedalis 1. sesquipedalis, foliis subquinis vcslitus pilisque longis 

 villosus. Folia radicalia pctiolata, sub antlicsi vulgo cmarcida; caulina 

 elongato-lanceolata , sessilia, sed inferiora praccipue basin versus longe 

 altenuata, uno alterove dcnticulo glanduloso instructa, viridia, pilis lon- 

 gis denticulatis albis supra spnrsim , subtus dense crinita. Antliela sub- 

 contigua, bractea inferiori foliacea, in meis spec, conglomerata , pcdun- 

 i-nlis brevissimis 1-2-cephalis lanuginosis. Capitula globosa, mulliflora, 

 lana longissima densissima inlricaia ct compacta obvoluta, ut involucrum 



