— 176 — 



saepissinie in {)etiolum alatuni longe sensinique, interdum usc|ue ad hasin angustata. ± grosse 

 serrato-dentata, dentibus numerosis saepe partim valde elongatis angustis glanduloso-mucro- 

 natis in petiolum descendentibus, disperse v. sat dense, in margine fere effloccoso petioloquc 

 dense pilosa, 2-5 mm, petiolis basi subvillosis, minute subglandulosa: caulina 2 — 3 iii 

 nervo dorsali subHoccosa, inferius radicalibus simile, reliqua parva liueari-lanieolata v. 

 linearia bracteiformia. Infloresceutia monocephala vel furcata 2 — 5-cepliala, acladium 4 cni ad 

 '/j totius caulis longum, rami primarii — 3 valde remoti, monocephali v. inferior ad 

 3-cephalus. luvolucrum seraiglobosuni ad 15 mm longum obscurum, .squiimae uigrae 

 ungustae, intimae angustissimae acutissimae, exteriores acutiuscuiae, fere immarginatae, sat 

 dense obscureque pilosae mediocriter glandulosae effloccosae. Bracteae elongatae lineares. 

 Flores saturate lutei, ligulae apice subpilosae, stylus initio luteo-brunneus denique ± obscurus. 



In m. Bructero Hercyniae silvae; iam botanicis veteribus notum, sed ab Hallero, 

 Ehrhardo etc. formis H. alpini L. adscriptum. 



Tab. 136, Fig. B. 4 — 6. H. nigrescens Willd. ssp. bruderum Fr. (e m. Bructero. leg. 

 Kappel). 4. Squama. 5. Pedunculus sub involucro. 6. Foliorum margo. 



Subspecies subrhaetJCUtn Zahn, in Koch Syn. (1901) p. 1846 (sub H. rhaetico Fr.); 

 Hierac. d. Schw. (1906) p. 885. Caulis (15—) 20 — 80 cm altus gracilis disperse medio 

 criterve, interdum sat dense pilosus, inferne mediocriter, superne dense sat longeque glaii- 

 dulosus, inferne subfloccosus, supeme floccis densissimis obsitus; rhizoma interdum pluri- 

 caule. Folia radicalia subnumerosa v. nimierosa sat magna subrigidiuscula viridia v. 

 sublutescenti-viridia, brevius longiusve et late alato-petiolata, utrimque sparsim disperseve 

 pilosa V. fere glabra, in margine petioloque mediocriter, basin versus subdensius pilosa, 

 1,5 — 3 mm, mediocriter glandulosa, effloccosa, exteriora oblongo-spathulata obtusa saepe 

 uiucronata, saepe subcito in petiolum contracta, glanduloso-denticulata v. basin versus ± 

 dentata, inteiiora magis elongata ad 12 cm longa, oblongo-lanceolata obtusiuscula v. acutius- 

 cula mucronata, basin versus longe sensim attenuata, dentibus numerosis lauceolatis v. 

 ti-iangularibus apice glanduliformibus saepe in petiolum descendentibus irregulariter suh- 

 sinuato- vel grosse inciso dentata: caulina 2 — 3 sensim decrescentia, inferius radicalibus 

 interiorihus simile, basin versus angustatum sessile v. latissime alato-subpetiolatum, mediuni 

 lanceolatum basi angustatum sessile subdentatum, summum lanceolatum v. linearilanceolatuin 

 acutum denticulatum v. subintegerrimum, in nervo dorsali subfloccosum. Inflorescentia fur- 

 cato- 2- vel oligocephala , acladium Vs — ) '/s~Vs ( — ^/5) totius cauUs longum. capitula 

 (1 — ) 2 — 3 ( — 5). Involucrum ad 15 mm longum semiglobosum subobscuruni , squamac 

 subangustae acutae apice ± liarbulatae, pilis canescentibus 2 mni longis mediocriter nume- 

 rosis, glandulis elongatis subnumerosis floccisque dispersis obsitae. Pedunculi obscure cani, 

 sat dense glandulosi subpilosi, 1 — 2 hracteis elongatis linearihus v. subulatis interdum sub- 

 foliaceis obsiti. Flores dilute lutei, ligulae evolutae v. subtuhulosae, apice plerumque 

 breviter denticulatae fere epilosae, stylis titris. 



Helvetia: In valle Sertigtal pr. Davos, 1950 m (legi ipse). 



Subspecies eximia, verosimiliter formulae {bifidum — iilvaticum) < aiphmm respon- 

 dens, habitu et characteribus omnino H. nigrescentis formis inter gregem Decipieus et gregem 

 Nigrescens intermediis adsci-ibenda. 



Tab. 139, Fig. A. 1—3. H. nigrescens Willd. ssp. snbrhaeticum Zahn (e valle Sertig- 

 tal legi). 1. Squama. 2. Pedunculus sub involucro. 3. Foliorum margo. 



