1122 



brevibus patulis oligocephalis. Folia hirsuta denticulata, radicalia oblonga, caulina 3—5 

 inferne inserla, ima oblonga, reliqua lanceolata vel ± reducta. Involucra gracillima it 

 eglandulosa setoso-pilosa, squamis subuniserialibus. Ligulae flavae. Achaenia sursum 

 attenuata, pappo sordido. Ex Fr. 1. c. inter albiflorum et Oronovii. 

 Venezuela: Bei der Kolonie Tovar (Fendler n. 74 8). 



530. H. amplum Greene in Erylhea HI. (1895) 4 0 4; Howell, Fl. N.-W.-Am. I. 

 396. — Caulis 6 — 9 dm usque ad anthelam sublate corymboso-paniculatam dense 

 foliosus, aphyllopodus, foliis oblongo-spathulatis acutiusculis integerrimis 10 — 4 5 cm longis 

 niargine hirsutis utrinque pilis adpressis subnumerosis obsitis, (superioribus) ramisque 

 pallidis glaucescentibus et sub lente subtomentoso-floccosis. Involucra c. 4 0 mm, squamis 

 interioribus obscuris, pilis atris setulosis obsitis, eglandulosis efloccosis. Ligulae luteae. 

 Achaenia columnaria vel sursum parum crassiora, pappo albo. 



Pazifiscbes Gebiet: Washington, auf Berghangen zwischen 1 800 — 2100 m, am 

 Mount Adams bei Bingen (Suksdorf). 



531. H. albiflorum Hook. Fl. bor.-americ. I. (1 833) 398; Torr. et Gray, Fl. 

 N.-Am. II. (1 843) 479; Nuttall in Trans. Am. Phil. Soc. n. s. VII. (4 841) 446; Fr. 

 Symb. 4 43 ; Epicr. 4 51 (excl. H. leucanthum Wedd.); Gray, Bot. Calif. I. 440. — 

 Pilosella albiflora Sz. Sz. in Flora (1862) 438. — Rhizoma saepe pluricaule, phyllo- 

 podum. Caulis (25— )50— 80(— 1 00) cm altus tenuis vel crassiusculus infra medium 

 foliosus, basin saepe violaceam versus pilis longis mollibus deflexis vestitus, sursum cito 

 minus (apice sparsim) pilosus vel subepilosus, efloecosus. Anthela subindeterminata laxa 

 corymbosa subdiffusa ramosissima bracteis sparsim pilosis obsita, acladio 5 — 4 2(— 35) mm, 

 ramis 4 — 7( — 18) subremotis vel valde remotis arcuato-(vel oblique) patentibus, in- 

 rerioribus saepe elongatis, tenuibus oligocephalis haud vel parcefloccosis vix glandulosis, 

 pedicellis tenuissimis vix sparsim vel densiuscule floccosis microglandulosisque, apice 

 saepe pilis nonnullis praeditis, minute bracteolatis. Capitula 5— 25(— 50). Folia 

 utrinque longe et praesertim in costa dorsali densiuscule hirsuta, margine micro-sub- 

 glandulosa, efloccosa, haud vel leviter sinuato-dentata, saepe tenuia mollia subglauces- 

 centia, radicalia ad 5 elongato-oblonga obtusa parva vel interdum submagna, in petioluni 

 saepe angustum brevem dense longe albobarbatum attenuata, saepe marcescentia, cau- 

 lina 3— 7(— 18) oblongo- vel ovato-lanceolata saepe cito decrescentia, inferiora (ad 

 15 cm : 3,5 cm) raro omnia sensim in petiolum alatum attenuata, ± remota, acuta, 

 superiora sessilia. Involucra 7— 9,5( — 4 0) mm, submagna, gracili- vel ovato-cylindrica 

 4 8— -30-flora viridi-atra vel pallidiora, pilis dispersis vel raris albis vel ± obscuris ob- 

 sita, efloccosa, praesertim inferne sub- vel dense microglandulosa, squamis biserialibus 

 vel subtriserialibus sublatiusculis acuminatis obtusiusculis et acutiusculis ± late dilutius 

 marginatis. Ligulae breves albidae, stylis luteis sublivescentibus. Achaenia 3—3,5 mm 

 obscura tenuia sursum haud attenuata, pappo sordido. 



In trockenen Nadelwaldern bis in die subalpine Region im pazifischen Nord- 

 amerika (cfr. Fig. 78) von Sud-Alaska bis Sud-Kalifornien und in den Rocky Mountains 

 bis Utah, z. B. Alaska: Nanaimo (Cooley), Lynn-Kanal bei Portage-Bay, 56° n. Br. 

 (Krause fr. n. 357)! Athabaska: Smoky River in Rocky Mts, 56° n. Br. (Drum- 

 mond)! Brit.-Columbia: Selkirk: Rogers PaB (Shawn. 537, 748, 852)!, Vancouver 

 (Rosendahl n. 796)! Washington: Mt. Rainier bei Tacoma (Schroter)!, Seattle 

 iS»uks.lorf)!, Okanogan Co. (Elmer n. 688)!, Montesano in Chehalis Co. (G. Heller, 

 Wash. PI. n. 394 8)!, Cascade Mts. 49° n. Br. (Lyall)! Oregon: Fort Colville (Lyall): 

 Idaho: Latah Co. (Elmer n. 345)! Wyoming: Yellowstone Park: Obsidian Creek (PI- 

 Tiellowst. Park n. 6107)!, French Creek (PI. Wyom. n. 2027)!, Ben Lodge Mts. 

 (Griffiths)! Colorado: Keben PaB (Baker n. 728)!, Fish Creek Falls (Univ. Wyom-, 

 Col. PI. n . 4 648|!, Rocky Mts. (Hall u. Harbour n. 350!j, Mount Paget (Macoun 

 n. 65!, 603!). Nevada: Snow Valley in Ormsby Co., 2460— 2545 m (Baker, PI- 

 Nev. n. 4 370)! California: Pacific Coast (Baker n. 4435!), Loma Prieta Peak (Elmer 

 ' '■ Hills!. Mann Co. (U.S.Nat. Herb. n. 2345)!, Pine Ridge in der 



Sierra Nevada (Hall u. Chandler n. 308!), San Bernardino Mts. (Hall)!, in der 



