298 COMPOSITiE. [Hieracium, 



venis coloratis, calycibus glabris. Ph, — Linn. Sp, PL p, 1125. Pursh, FL Am, v, 2, p, 502, 

 Bigel. Fl. Bost ed, 2. p, 288. — ^. gracilum ; foliis angustioribus magis petiolatis venis vix 

 coloratis. 



I 



Hab. Canada. Pursh, — ^. About the Saskatcliawau. Drummond. — The true H, venosu?n, with broader 

 leaves and coloured yeius, (such as I have received from Dr. Boott, gathered near Boston,) 1 have never seen 

 from the British Possessions, But my var. /3. I have reason to think is not specifically distinct from it. I 

 must hoivever, state, that, from the varied appearances assumed by the North American Hieraciay I fear they 

 ai*e nearly as difficult of determination as those of Europe. 



3. U, gracile ; scapo nudo seu monophyllo glabro superne cymoso-racemoso pubescente 

 involucrisque nigro-pilosis subglandulosis, foliis oblongis obtusiusculis glabris in petiolum 

 longiusculum attenuatis membranaceis integerrimis, floribus parvis. 



Hab. On the more elevated Rocky Mountains. Drummond. — 12-18 inches high, slender, and with a 

 good deal the habit of H, venosum; but the foliage is different, the panicle is reduced to a raceme, whose 

 lower pedicels are considerably elongated, and they, in their upper part, and the involucres, are clothed 

 with long black hairs, mixed with some pedicellated glands. 



4. H. albiflorum ; caule folioso inferne molliter deflexo-piloso, foliis lato-Ianceolatis 

 integerrimis obtusis in petiolum attenuatis longe albo-pilosis, caulinis remotiusculis scnsim 

 minoribus sessilibus, panicula gracili multiflora glabra, pedicellis divaricatis, involucris pilis 

 longis albidis sparsis, " floribus albis." 



Hab. Alpine woods in the Rocky Mountains, north of the Smoking River, in lat 36°. Drummond. — 

 This has somewhat the habit of H. Gronoviiy but it is very different in other particulars. The leaves are 

 clothed with long, shaggy, very soft white hairs, which are copious, and remarkably deflexed on the 

 petioles and base of the stem ; while the rest of the stem and the panicle are glabrous, and the involucre has 

 only a few long, scattered, patent hairs. 



5. H. Scoideri ; setoso-pilosum, pilis longis rigidis patentibus fuscescentibus, caule folioso 

 paniculato, panicula anipla multiflora ramis erectis, foliis lato-lanceolatis subcoriacels rigidis 

 acutis vix dentatis, radicalibus in petiolum brevem attenuatis, caulinis remotiusculis sessilibus, 

 involucris fuscescenti-pubescentibus pube pilis longiusculis glandulosis immixto. 



Hab. At the mouth of the Columbia, Dr, Scouler, — A remarkable and distinct species; in its very 

 long coarse rigid hairs allied to I£. echioides of Waldstein and Kitaibel, and to a very singular species from 

 River St. Clair, United States, {H. longipilum, of Torrey, in Herb. Nostr. ;) but there the hairs are nearly an 

 inch long, and remarkably upright and appressed. I possess our present plant also from Dr. Schweinitz, 

 gathered in Pennsylvania. 



6. H, Gronovii; caule folioso, inferne prsecipue patentim piloso superne paniculato, 

 panicula subcompacta, foliis lato-seu obovato-lanceolatis rigide appressim pilosis integerrimis 

 obtusis, inferioribus radicalibusque sublonge petiolatis, caulinis remotis sessilibus sensim 

 minoribus, pedicellis involucrisque pube pilisque glandulosis tectis.— i2w?2. 5;?. PL p. 1127, 

 Mich, Am, V. 2. p. 87. Pursh, FL Am, v, 2. p, 503.— H. Marianum. BigeL FL Bost, ed. 2. 

 p. 288.-/5. foliis caulinis numerosis latioribus. — H. scabrum. Darlington, FL Cestr, p. 84. 



(fide specim. in Herb, nostr,) Mick, Am, v. 2. p. 86 ? 



Hab. Canada. Michaux. Pursh. Mrs. Sheppard, Mrs, Percival, Lake Huron. Dr. Todd,-~'From 

 various parts of the United States I have received two states of this species : the one («.) a slender plant, 

 with few and distant and narrower leaves on the stem, and more petiolated radical ones ; and (/3.), a much 



