Distinctissimus foliis supra scabris subtus mollissiiDe 

 pubescentibus incanis, floribus sub-cor^mbosis, autho- 

 dii squamis acuminatis adpressis. = 6. H. macrophjl- 

 lus = W. h. berol: I. p. 70. t. yo. ( Amer: bor: ). 

 DifTert a priori, cui valde afTinis, foliis sub-sessilibus 

 angustioribus longioribus subtus laeviusculis nec inca- 

 nis, anthodii squamis linearibus. = y. H. giganteus 

 = L. sp: i2j8. non Cav: (Amer: bor:). Perenn: Al- 

 tissimus scaberrimus, folia alterna uno saepius stipu- 

 laeformi opposita sub-sessilia lineari-lanceolala acu- 

 minala remote sub-serrata, flores sub-corymbosi me- 

 diocres, anthodii squamse lineares elongatse radios fere 

 sub-sequantes. = 8. H. angustifolius = L. sp: 1279. 

 {Amer: bor:). Perenn: Humilis scabriusculus simplex, 

 folia saepius alterna linearia margine revoluta, pedun- 

 culus terminalis solitarius, flores parvi, anthodii squa- 

 inse valde squarrosse , discus fuscus , radius saturate 

 luteus. = 9. H. pubescens = Vahl: symb: II. p. 92. 

 (Amer: bor:). Bienn: Elatus hispidulo-pubescens, folia 

 sessilia cordato-sub-araplexicaulia lanceolata minutis- 

 sime remote serrata, flores sub-paniculati solitarii ad 

 apicem ramulorum , anthodii squamae lanceolata? vil- 

 los^e. = 10. H. decapetalus = L. sp: i2yj. {^Amer: 

 bor:). Perenn: Scaberrimus , folia brevi-petiolata ovato- 

 oblonga acuta mucronulata , pedunculi 3-4« versus 

 apicem ramorum i-flori, radii 10-12. = 11. H. pro^ 

 stratus = W. sp: III. 22^2. ( Amer: bor: ). Perenn: 

 Debilis prostratus glaber, fob*a brevi-petiolata ovala 

 scabriuscula, pedunculi elongali i-flori, flores parvi, 

 anthodii squamae ciliatae. = 12. H. frondosus = L. am: 

 YoL. IIL 3i 



