— 140 — 



(1871) p. 45 p. p.; Hierac. alp. franf. p. 45 p. p.; H. Jaquini—viurorum A.-T., Spicileg. p. 28; 

 H. humilc X niurorum ? A.-T., Hierac. alp. franf. 1. c; H. intermedium Lapeyr., Hist. abr. 

 (1813) p. 471; //. humile Froel., in DC. Prodr. All p. 214 p. p. 



Caulis tenuis v. subgracilis, (10—) 20-45 cm altus ascendens vel erectus saepe 

 flexuosus ± subtiliter striatus, plerumque pariter ac petioli folioruni (obscure) violaceus, 

 sparsim disperseve glandulosus, sparsissime mediociiterve pilosus, 0,5 — 2 mm, pilis paten- 

 tibus, ± disperse floccosus v. effloccosus. Folia rosularia 4—8 saepe sat magna, foliis 

 H. humUis V. H. silvatici similia, ionge petiolata, exteriora rainora ovata, sequentia elliptica, 

 reliqua oblonga v. lanceolata, basi truncata v. in petiolum ± contracta, rarius ± cordata, 

 cito sensimve acuminata, acutiuscula v. acuta, in margine supenie denticulata medio den- 

 tata V. basin versus ± grosse sinuatodentata v. inciso-dentata v. pinnatilobata, dentibus 

 apice glanduliformibus interdum in petiolum descendentibus ; caulinum plerumque unum 

 brevius petiolatum v. subsessile radicalibus interioribus simile, vel duo evoluta et summum 

 elongatum lineare, vel unum tantum subulatum cauli insertum; omnia ± glauca, sublutes- 

 centi- V. saturate viridia, saepe ± violacea, subrigida. Inflorescentia altefurcata v. laxe 

 paniculata paulum suprafastigiata indeterminata, acladium (2 — ) 3 — 8 cm ( — ^/5 totiuS 

 caulis) exhibens, rami (1 — ) 2 — 4 ( — 7) remoti v. valde remoti subtenues oblique patentes 

 monocephali vel simpliciter ramosi, capitula 2 — 6 v. compluria. Involucrum 10 — 16 mm 

 longum ± ovatum basi rotundatum, denique saepe late depressum; squamae ± angustae 

 vel e basi latiuscula acuminatae, obtusiusculae v. acutae, subatrae v. obscure virides, interiores 

 plerumque late albido- viridi-raarginatae, apice saepe obscuriores, tiores iuniores saepissirae longe 

 superantes. Bracteae 1 — 4 subulatae. Pili involucri fere nulli v. mediocriter numerosi diluti v. 

 ± obscuri basi atri, rigidiusculi, 0,5—2 mm longi, in pedunculis superne consimiles, deorsum 

 rarissimi v. nulli, rarius modice numerosi, in foliis nulli v. fere mediocriter numerosi, in 

 margine nervoque dorsali et in petiolo mediocriter numerosi v. sat densi, 1 — 3 mm longi, in 

 parte aversa dispersi. Glandulae involucri dispersae minutae, nonnuUis maioribus immixtis, 

 in pedunculis dispersae v. subnumerosae, in margine foliorum (et in nervo dorsaH) pariter 

 ac in petiolo dispersae minutissimae saepe subnullae. Flocci involucri nulli v. sparsissimi, 

 in pedunculis sat densi v. mediocriter numerosi, deorsum cito nuUi v. ± profunde descen- 

 dentes, in foliis interdum in nervo dorsaJi tantum dispersi, saepissime nulli. Flores dilute 

 lutei, ligulae apice glabrae, stylus subobscurus, achaenia subatra. 



Hab. in ditione et in consortio H. humilis. — Flor. (lun. — ) lulio — Aug. 



Dispositio gregum: 



a. Cotteti Zahn, in Schinz et Kell,, Fl. d. Sohweiz ed. 2 II (1905) p. 310. Habitus H. humilis, 

 capitula 1—3 (—5). — Ssp. pseudohumile Zahn, Cotteti Godet, subhumile Zahn, salvanicum Zahn 

 (cfr. Zahn, Hierac. d. Schweiz 1906 p. 362). 



b. Erucophyllum Zahn 1. c. Habitus ut in H. silvatico, sed praecipue folia radicalia interiora 

 saepissime valde grosse dentata v. more H. humilis lacerata, dentibus in petiolum descen- 

 dentibus, in margine sparsissime minuteque glandulosa; capitula 5— 10 (—15); inflorescentia 

 laxe paniculata indeterminata. — Ssp. erucophyllum. Zahn, Prinzii Kaeser (cfr. Zahn I. c). 



a. Cotteti Zahn. 



Subspecies subhumile Zahn, in Koch Syn. (1901) p. 1835; H. Jacquini jS) subintegri- 

 folium Gaud., herb.! Acladium 20—40 mm longum v. interdum longius, involucrum 9—11 mm 

 longum. Folia plerumque sat parva, exteriora elliptica v. obovata, reliqua eUiptico- v. ob- 

 longo-lanceolata acuminata saepe in parte aversa v. apicem versus purpurea, denticulata 



