634 



is unquestionably very closely related to both of them , but espe- 

 cially to the latter. It is distinguished from them more parti - 

 cularly by the form of the leaves, by the absence of hairs and glands 

 on the peduncles, by the shorter and denser hairs on the involucres, 

 and by the almost total absence of glaridular hairs. Judging from the 

 form of the leaves, the Ostero-form should be regarded as an inter- 

 mediate form, but as regards the clothing of the involucres and the 

 peduncles it exactly agrees with the form from Sydero. The occur- 

 rence in the Færoes of a form so distinctly and closely related to 

 the above-mentioned Icelandic forms is of really great interest as 

 it is a further proof of the relationship of the flora of these countries. 



4. HIERACIUM CONSTRICTIFORME Dahlst. n. sp. 

 (Tab. XI. Fig. 3.) 



Caulis 20 — 55 ctm. altus, 2 — 3-phyllus, erectus v. adscendens, 

 sæpe subflexuosus, sat robustus, inferne sparsim — dense et longe 

 pilosus, parce stellatus, medio parce — sparsim pilosus, + scaber, 

 sparsim stellatus, apice pilis mollibus densiusculis, floccis sat fre- 

 quentibus et glandulis raris obtectus. — Folia basalia in rosulam 

 4— 5-foliam (rosulis 3 — 4-foliis, prolepticis sæpe auctam) congesta, 

 sæpius sat magna, exteriora ovalia - - elliptica v. ovata denticulata 

 + obtusa, intermedia et intima + ovata — ovato-lanceolata v. late 

 lanceolata v. etiam ovalia + acuta, breviter, longiuscule et acute, 

 sat regulariter dentata; folia caulina inter se longissime distantia, 

 infimum breviter — mediocriter et + late petiolatum v. etiam 

 subsessile, ovatum — ovato-lanceolatum, nunc prope basin, nunc 

 ad tertiam partern caulis (v. supra) insertum et intermedium ovato- 

 lanceolatum — lanceolatum, sessile, + acuta, longiuscule et acute, 

 magis irregulariter dentata, summum lanceolatum — sublineare 

 v. etiam ovato-lanceolatum, parvum, ad basin argutius dentatum 



— denticulatum, interdum subintegrum; omnia in petiolis, ad 

 basin marginum et subtus in nervo dorsali + stellato sat dense 



— dense, molliter et longe pilosa, cæterum in pagina inferiore spar- 

 sim, in pag. superiore parce pilosa v. subglabra. — Inflorescentia + 

 contracta, 3 — 5-cephala, ramo 2 — 3-cephalo, ex axillo fol. summi 

 evoluto sæpe aucta, ramis summis v. omnibus et pedicellis + supe- 

 rantibus acladioque 10 — 20(— 30) mm. longo + dense floccosis, pilis 

 mollibus, + densis et glandulis sparsis — densiusculis (sul) invo- 

 lucris sal densis), parvis obtectis. — Involucra mediocria — magna, 



