643 



III. Alpestria Fr. 

 SEMIDOVRENSIA Klistr. 



10. HIERACIUM HARTZIANUM Dahlst a. sp. 



(Tab. XI. Fig. 7.) 



Caulis c. 35 ctm. altus, gracilis, flexuosus, 2 — 3-folius, inferne 

 rare — sparsim et longe pilosus,, medio glaber — subglaber, su- 

 perne \ ix v. parce stellatus, basi + rubicundus. — Folia basalia 3 — 4, 

 exteriora elliptica — obovata obtusa, basi ovata in petiolum apice 

 late alatum abrupte decurrentia, subintegra — breviter dentata, in- 

 teriora + obovata — ovalia in petiolum + descendentia + crebre et 

 acute fere ad apicem dentata, in petiolis sat dense et longe pilosa, 

 in marginibus sat dense ciliata, subtus in nervo dorsali leviter stel- 

 lato sat dense — densiuscule pilosa, cæterum sparsim — densiu- 

 scule pilosa; folia caulina inter se longe remota, cito decrescentia, 

 infimum sat magnum ovatum acutum, sat crebre et acute dentatum 

 — longe subulato- dentatum + longe petiolotum, petiolo sat alato 

 basi subamplectente; folia superiora sessilia parva, panduræformia 

 l)asi amplectente, inferiore parte angustiore + longe subulato-dentata, 

 cæterum denticulata — subulato-dentata acuta v. etiam subintegra. 

 - Inflorescentia oligocephala, paniculata pedicellis acladium 20—30 

 m. m. longum + superantibus, suberectis, leviter arcuatis, inferne 

 sparsim, superne densiuscule stellatis et glandulis gracilibus densiu- 

 sculis obtectis. — Involucra 14—15 mm. longa basi ovato-turbinata, 

 atrovirescentia, squamis exterioribus lanceolato-linearibus obtusiu- 

 sculis, intermediis et intimis e basi lata lineari-lanceolatis, sensim 

 in apicem obtusum — subacutum attenuatis, exterioribus et inter- 

 mediis in marginibus anguste et vix conspicue floccoso-limbatis, cæ- 

 terum glandulis gracilibus, longis et parvis dense obtectis, intimis 

 late virescenti-marginatis v. totis virescentibus, apice leviter coloratis. 

 sparsius glandulosis. — Calathium 35—40 mm. diametro, sat ra- 

 dians, ligulis longe et inæqualiter dentatis, stylo luteoferrugineo, 

 fuscobispidulo. 



Bordo: »hammer« at Bordovig (.1. Hartz and C. Ostenfeld;. In flower 

 on August 17, 1897. 



H. Hartzianum belongs unquestionably to Semidonrensia of Al- 

 pestria. Among the Scandinavian forms it reminds one most of 

 H. glaucicolor Dablst., but is easily distinguisbable by its more 



Botany of the Kæroes. 41 



