Sect. XXXVIII. Aurellii'ormia; n. 554. 



570. H. subargentinense. 



p. Folia caulina 8 — 12( — 1 5), radicalia plerumque 0 57 1 . H. Lorentzianum. 



554. H. gracile Hook. FI. bor.-am. I. (1833) 298; Fr. Symb. 139; Epicr. 146; 

 A.-T. Spicil. 15. — H. Houkeri Steud. Nomencl. ed. 2. I. (1841) 763. — K triste 

 var. gracile Torr. et Gray, Fl. of N.-Am. II. (1 843) 478; A. Gray, Bot. Calif. I. (1876) 

 481. — Pilosella gracilis Sz. Sz. in Flora (1 862) 439. — Laete viride, subglaucescens. 

 Caulis (5 — ) 1 5 — 25(— 40) cm tenuis vel gracilis scapifonnis simplex usque ad basin 

 subfloccosus, apice densius floccosus eglandulosus epilosus, interdum secundariis auctus, 

 phyllopodus. Anthela racemosa 2 — 5(— 1 0)-cephala, acladio 5 — 50 mm, ramis 1 — 4 

 (—9) monocephalis valde remotis erectis brevibus (vel inferioribus saepe subelongatis 

 arcuato-erectis) tenuibus ± canis apice pilis brevibus mollibus subpilosis et minute 

 subglandulosis, 0 — 1 -bracteolatis. Folia radicalia 3 — 7 erecta breviter vel longius et 

 angustissime petiolata lanceolato-spathulata obtusa vel exteriora minora obovato-spathu- 

 lata rotundato-obtusa, interiora acutiuscula, longe sensim in petiolum attenuata, epilosa 

 vel pilis brevissimis articulatis adspersa sparsim minute glandulosa haud vel raro den- 

 ticulata, caulina 1 — 2( — 4), imum lanceolatum petiolatum, reliqua linearia vel bractei- 

 formia subtus floccis raris vel densis adspersa. Involucra parva 6—8 mm longa cylin- 

 drica (vel terminale ovato-cylindricum) denique latiora subobscura modice vel densiuscule 

 pilosa (1 — 2,5 mm) breviter obscure subglandulosa inferne modice floccosa, squamis 

 subangustis acuminatis acutiusculis et acutis, interioribus dilutius marginatis. Ligulae 

 breves saepe stylosae. Styli subobscuri. Achaenia ad 2 mm atra deorsum subaltenuata. 



Durch die Hochgebirge des pazifischen Gebietes von Nord- u. Sudani erik a. 



Subspecies et varietates H. gracilis. 

 Subsp. 1 . gracile Hook. 1. c. — Ut supra. 



In den alpinen Gegenden des pazifischen Nordamerika. Alaska: Norfolk Sund 

 (Froelich), Lynn Kanal (Krause n. 57 2)! Brit. Columbia: Selkirk Flora, Oltertail 

 PaB, Asulkan Valley, Revelstoke, 1900—2500 m (Shaw n. 522!, 89 1!, 1006!; Macoun 

 n. 65601—65602!), Vancouver Island (Macoun)! Washington: Chiquash Mts., 24 00 m 

 (Suksdorf)!, Wenatchee Mts. in Kittitas Co., 2000 m (Elmer n. 449)!, Mt. Paddo, 

 2000 — 2300 m (Suksdorf)!, Cascade Mts., 1 300 m (Lyall)! Idaho: Packsaddle 

 Peak (U. S. Nat. Herb. n. 835)! Wyoming (Univ. of Wyom. n. 7895)! Colorado: 

 Anita Peak (Univ. of Wyoming n. 1776)!, Chambers Lake (Stat. Agric. Coll. Col. 

 n. 3341)!, Clear Creek, 3600— 4000 m (Patterson, PI. Color, n. 303 pp.), Jorrey's 

 Peak, 4300 m (Lettermann) !, Macdonald's Peak, 2600 m! und Berthoud's Pali in 

 den Rocky Mountains (Engelmann)! Oregon: Mt. Hood (Howell)! Utah. Kalifornien: 

 Sierra Nevada: Black Mt., 3100 m (Hall u. Chandler n. 599)! usw. — Juli— September. 



Var. ft. detonsum Gray, Bot. Calif. 1. c. et in Proc. Am. Ac. XIX. (1 883) 67. — 



sioribus. — Washington: Horse Shoe Basin in Okanogan Co. (Elmer n. 726)!, Ml. 

 Rainier, 2900 m (Allen n. 286;!, Mt. Paddo, 2000— 2300 m (Suksdorf)! Idaho: 

 Packsaddle Peak (Sandberg in U. S. Herb. n. 835 pp.)! Colorado: Clar Creek (Pat- 



Kalifornien: Yosemite Park, 2750 m (Hall und Babcock n. 3640)! Oregon: Eagle 

 Creek Mts, 3000 m (Cusick n. 904)! 



Var. y. alaskanum Zahn. — Folia parcepilosa, caulis superne pilosus, involucra 

 subatra, squamis latis, pilis obscuris. Glandulae in involucris pedicellisque et in summo 



