Stenotheca. Sect. XXXIII. Crepidisperraa; n. 512—515. — Sect. XXXIV. Pellifera. 1113 



Wooton a. Standley, Fl. N. Mexico (1917) 628. — Grepis ambigua A. Gray in PI. Fend- 

 lerianae (1849) H 4 et PL Wrightianae II. 106; nec I. (1852) 129. — Heteropleura 

 ambigua Sch.-Bip. in Flora (186 2) 435. — H. nigrocollinum Watson in Proc. Am. Ac. 

 XXV. (1890) 1 33. — H. praemorsiformi subsimile. Phyllopodum, viridi-subglaucescens, 

 saepe suberiopodum et pluricaule. Caulis 25 — 6 0 cm pilis albis patentibus vel deflexis 

 densiuscule setosus vel glabratus, efloccosus. Anthela 5 — 15( — 40)-cephala, ramis ad 

 6, interdum ex omnibus axillis ortis, superioribus 1 — 3-cephalis, inferioribus saepe valde 

 remotis densiuscule setosis longis erectis cauliformibus corymboso-racemoso-oligo (3 — 5)- 

 cephalis subfoliolaceis; acladio 5— 20( — 40) mm, pedicellis minute subglandulosis disperse 

 pilosis apice floccosis vel interdum densiuscule pilosis subcanis. Folia radicalia 3 — 14 

 obovato- vel oblongo-spathulata vel lingulata, apice rotundata vel obtusa, vel oblanceolata 

 acuta, saepe submagna (5 — 12 cm : 17 — 60 mm), saepe vinoso-colorata, latissime alato- 

 petiolata, utrinque longe et sparsim vel densiuscule setosa, margine dense ciliata simul 

 minute disperse glandulosa, subintegerrima vel cuspidato-serrulata. caulina 1 — 2( — 3) 

 saepe reducta vel lanceolato-oblonga vel elongata anguste lanceolata vel linearia in 

 bracteas folioliformes decrescentia ciliata obsolete denticulata. Involucra cylindrica, 

 10 — 12( — 14) mm longa, modice vel dense floccosa disperse vel densiuscule albopilosa 

 minute subglandulosa, squamis latiusculis obtusiusculis atroviridibus dilutius marginatis 

 apice subbarbulatis. Ligulae breves luteae. Styli initio lutei, livescentes. Achaenia rufo- 

 vel fuscoatra, 4 — 5 mm, sursum parum vel leviter attenuata, pappo zh sordide albido. 



Mexiko: Chihuahua: Chuchuichapa (Hartmann n. 698); bei der Kolonie Garcia 

 in der Sierra Madre, 2500 m (Townsend u. Barber n. 23!, Pringle n. 1536!). 

 New Mexico (Wright n. 1427), z. B. Santa Fe Creek (Fendler n. 488), Ozgan- u. 

 Mogollon Mountains. Arizona: 1 Santa Rita Mts., 1825-2450 m (Pringle), Fort 

 Huachuca (Lemmon n. 2804), Wil ow Spring (Palmer n. 532), Flagstaff, 2300—2670 m 

 (Mac Dougal n. 19; Purpus n. 7076!). Lower California: La Chuparosa (Bran- 

 degee). Colorado: Upper La Plata River, 3330 m (Baker, Earl u. Tracy, PL of 

 South-Colorado n. 5 7 9 : f. macro cephalum)\ Wyoming. Dakota. — Juni — September. 



Var. p. discolor A. Gray, Syn. Fl. N.-Am. I. 2. (1 886) 429. — Caulis 2 -3 dm 

 disperse setosus; folia magna latissime obovalia obtusa vel ovata vel ovato-lanceolata 

 subtus violacea vel vinoso-colorata; involucra angustissime cylindrica longa, squamis latis 

 obtusis vel breviter acutis. Pappus albus. 



Sud-Arizona: Berg Chiricahua, 2440— 2510 m (Blumer n. 1597)! 



Sect. XXXIV. Pellifera. 

 Pellifera Zahn. — Cfr. p. 4 077 — Phyllopoda, pleio- vel polycephala. Folia radicalia 

 obovata vel oblonga vel elongato-oblanceolata ± linguiformia, caulina 2 — 5( — 6) oblongo- 

 v, l aiurustius lanceolata vel inferiora lanceolato-lingulata, omnia pilis densis vel densis- 

 simis ;fc mollibus intricatis villoso-crinita vel pellifera, inferne saepe villosissima. Caulis 

 mferne similiter vestitus. Anthela paniculato-thyrsoidea =b glandulosa et floccosa haud 

 vel sparsim pilosa. Involucra (5 — ) 8 7 9 ' — 10 1 mm cv,indrica vel ovato-cvlindrica parce, 



subattenuata, pappo nivescenti. — Praecedentibus duabus sectionibus valde affinis. 

 Zentralamerika. — Fig. 78. 



