Stenotheca. — Sect. XXXVIII. Aurelliformia; n. 554. 1133 



** lnvolucra 7 — 9 mm, folia caulina semi- 



amplexicaulia 569. H. cacrayense. 



570. H. subargentineiise. 



ß. Folia caulina 8 — 12( — 1 5), radicalia plerumque 571. H. Lorentzianum. 



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

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

 var. gracile Torr, et Gray, Fl. of N.-Am. II. (1843)478; A. Gray, Bot. Calif. I. (1876) 

 481. — Püosella graeilis Sz. Sz. in Flora (1862) 439. — Laete viride, subglaucescens. 

 Caulis (5 — )I5 — 25( — 40) cm tenuis vel graeilis scapiformis simplex usque ad basin 

 subfloecosus, apice densius floecosus eglandulosus epilosus, interdum seeundariis auetus, 

 phyllopodus. Anthela racemosa 2 — 5( — 10)-cephala, acladio 5 — 50 mm, ramis 1 — 4 

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

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

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

 angustissime petiolata lanceolato-spalhulata 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 I— 2( — 4), imum lanceolatum petiolatum, reliqua linearia vel bractei- 

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

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

 pilosa (I — 2,5 mm) breviter obsoure subglandulosa inferne modice floecosa, squamis 

 subangustis acuminatis acutiusculis et acutis, interioribus dilutius marginatis. Ligulae 

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



Durch die Hochgebirge des pazifischen Gebietes von Nord- u. Südamerika. 



Subspecies et varietates H. graeilis. 



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



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

 (Froelich), Lynn Kanal (Krause n. 572)! ßrit. Columbia: Selkirk Flora, Ottertail 

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

 n. 65601 — 65602!), Vancouver Island (Macoun)! Washington: Chiquash Mts., 2400 m 

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

 2000 — 2300 m (Suksdorf)!, Cascade Mts., 1300 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. Coli. 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 Paß 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. ß. detonsum Gray, Bot. Calif. 1. c. et in Proc. Am. Ac. XIX. (1883) 67. — 

 Pilis in involucris pedicellisque dispersis vel subnullis, glandulis densis, floccis numero- 

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

 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- 

 terson n. 303 pp.)! usw. — Simul involucris canofloccosis (subvar. dcnsifloccnm Zahn): 

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

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



Var. /. alaskanum Zahn. — Folia pareepilosa, caulis superne pilosus, involucra 

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

 folio caulino sublongae subatrae. 



Alaska: Yakutat Bay (U. S. Nat. Herb. n. 107 pp., leg. Funston)! 



Subsp. 2. andmum Philippi in Linnaea XXXIII. (1864 — 1865) 125; Neger in 

 Bot. Central!»!. Beih. XI. (1902) - ,; 56; Reiche, Fl. Chile V. (1910) 48. — Caulis 10— 



