Zahn. — H. barbigerum Greene in Pittonia III. (1897) 228; 

 How. Fl. N.-W.-Am. I. (4 903) 396; nec Stenstr. — Pluricaule, rhizomate terrae pro- 

 funde inserto. Caules 10 — 30 cm, hypopbyllopodi, basin versus saepe conferte foliati 

 sursum scapiformes. Folia lanceolata vel spathulata breviter pctiolata, acuta, margine 

 integro longe patenti-hirsuta, utrinque pariter ac caulis minus pilosa, sulilus densissime 

 floccosa. Anthela laxa 3 — 5-cepbala cum caule disperse pilosa, pedicellis elongatis. 

 Involucra campanuliformia c. 8 — 10 mm longa 15 — 30-flora floccis subtomentosula et 

 pilis subobscuris setulosis hirsuta, squamis linearibus. Achaenia columnaria. Pappus albus. 



Pazifisches Nordamerika: Von Ashland Butte in Oregon bis Lassen's County in 

 Kalifornien. 



550. H. hemipoliodes Zahn. — H. cinereum Howell, Fl. N.-W.-Am. I. (1903) 

 396; nec Tausch. — Cinereum, floccis minutis albis obtectum. Caules complin es 15 — 

 25 cm alti basin versus tantum foliati (hypophyllopodi). Folia lanceolata vel angustiora 

 acuta vel acuminata 7,5 — 10 cm longa sparsim denticulata, in petiolos late alatos 

 attenuata, pilis crispis sparsim hirsuta. Anthela conferte corymboso-paniculata oligo- 

 vel pleiocephala. Involucra 10 — 12 mm vix vel sparsim hirsuta (tomentosulo-floccosa), 

 squamis linearibus margine late scariosis, externis (brevibus) subulatis. Achaenia colum- 

 naria. Pappus sordidus. 



Pazifisches Nordamerika; Table Rock in Clackamas Countv in Oregon. 



551. H. Howellii Gray in Coult. Bot. Gazette XIII. (1 888) 73; How. Fl. N.-W.- 

 Am. I. (1 903)396. — Caulis3 — 6 dm dense floccosus inferne hirsutus phyllopodus 

 subscapiformis. Folia spathulata vel oblanceolata haud vel interdum sparsim denticu- 

 lata 7,5—10 cm longa obtusa in petiolum brevem attenuata, caulina pauca vel 0 ses- 

 silia, omnia utrinque subcanoflocco'sa villoso-crinita. Anthela laxe paniculata pleiocephala. 

 Involucra 10 mm 5— 1 5-flora cylindrica, squamis longioribus 6 — 8 lineari-lanceolatis 

 obtusis, externis paucis, omnibus dense ftoccosis epilosis. Achaenia vix vel sursum 

 parum attenuata, pappo (initio) albo. 



Pazifisches Nordamerika: Mooney Mountain in Josephine County in Oregon. 



552. H. Rydbergii Zahn. — H. griseum Rydb. in Mem. N.-York Gard. I. (1 899) 

 464. — Caulis phyllopodus vel hypophyllopodus gracilis vel crassiusculus ± vel dense 

 tloccosus, ubique ± dense setosus (2—4 mm) vel sursum ± glabrescens, basi olivacea 

 saepissime densius setosus, 4 — 8 dm altus; anthela racemoso-thyrsoidea canotomentosa 

 modice vel dense pilosa, acladio brevi, ramis 8—15 saepe eglandulosis, summis con- 

 tertis, reliquis remotis brevibus 1 — 3-cephalis vel 1-cephalis (capitulis reliquis abortis), 

 pedicellis brevissimis saepe minute glandulosis. Folia lanceolata vel angustiora saepe 

 valde elongata ad basin latissime alatam longe attenuata utrinque modice vel densius- 

 cule floccosa et ± dense setosa (2—3 mm), haud vel subdenticulata; radicalia florendi 

 tempore plerumque emarcida, caulina ad 1 8 longa, superiora magis remota cito minora 

 lineari-lanceolata densius floccosa in bracteas transeuntia, inferiora approximata erecta 

 sensim minora (ad 16 : 1,5 cm). Involucra 8,5 — 10 mm crasse ovato-cylindrica dense 

 vel densissime minute glandulosa subcanofloccosa disperse vel modice pilosa, squamis 

 sublatiusculis obtusis vel obtusiusculis obscuris late dilute marginatis, extimis dilutioribus 

 sublaxis. Ligulae subbreves luteae. Styli brunneo-lutei vel livescentes. Achaenia fusca. 

 3,5 mm, sursum parum attenuata. 



Idaho: Henry's Lake, 2650 m (A. Rydb erg, Expl. of Montana and Yellowstone 

 Park n. 5309)! 



553. H. horridum Fr. Epicr. (1862) 154; A.-T. Spicil. (1881) 19. — Pilosella 

 ■>•»■•■> Li Sz. Sz. in Flora (1862)439. — Phyllopodum, pluricaule, ubique pilis longis 

 albis (manifeste dentatis subplumosis exsiccatione rufescentibus) dense crinitum vel 

 liinatu.n. Caulis 1—4 dm gracilis subfractiflexus densissime pilosus (3—4 mm) superne 

 '■nun . issmie et sparsim vel subglandulosus, usque ad apicem foliosus. Anthela in- 



!, ' m,ma!;i !tiV| '^'! | l' , ''i vel paniculata ramosissima polycephala subeglandulosa sed dense 

 t.muis )ursii(;i, ramis a! in. summis confertis subcymosis, inferioribus valde remotis 

 interdum ex omnibus axillis ortis erectis foliolis hirsutissimis obsitis thyrsoideo- oligo- 



