4 



bus, divaricatis, acutis et simplicibus; folia caulina pellucida, 

 patentia, longissime et latissime decurrentia, rbomboidi-trian- 

 gularia, sensim vel subsensim longe acutissima, concava, haud 

 plicata, margine solum infra partem latissimam, fere semper 

 bene auriculatam, folii recurvato, plus minusve integro, nervö 

 tenui, ad vel paullo supra medium dissoluto, cellulae majuscu- 

 lae, hyalinae, rhomboidi-prosenchymaticae, non serpentinae. 



Alpina est, sterilis solum semper ad hunc diem obser- 

 vata et cum H. glaciali (autoica tamen) vel H. rivulari com- 

 mutata. ■ — Norvegia, Dovrefjeld, Fogstuen ($ ster., Julii 1857, 

 N. C. Kindberg), Knudshöe et Nystuhöe ($ ster., Julii 1865, 

 Sv. Berggren). Lapponia, Herjedalen, in alpe Axhögen ($ 

 ster., Julii 1853, R. Fr. Fristedt); Lapp. kemensis, ad basim 

 montis Olostunturi, reg. silv., ad margines rivuli in silva fron- 

 dosa (perf. ster., Julii 1867, J. P. Norrlin); Lapp. orientalis 

 (rossica), Berdonos, baud procul a Svjätoinos, terrestre (q 

 ster.), et ad nives terrestre prope pagum Jokonga, 5 mill 

 pass. suec. e mari glaciali (q*, Julii 1872, V. Fr. Brotherus). 

 Lombardia, prov. Bergamo, Valle delle Alpe montis Gavia, 

 in cavis saxorum 8200' (perf. ster., Sept. 1865, P. G. Lorentz). 



Planta viridis — lutescens, nitida, recta apiceque acu- 

 tissima — acuta, irregulariter remoteque subpinnata — sub- 

 simplex, ramis brevibus, divaricatis, acutis et simplicibus, in 

 caespite laxiore procumbens et bic illic fasciculos radicello- 

 rum nigro-purpureos emittens, ramis erectis, in caespite den- 

 siore plus minusve erectum, eradicosum, ramis arcuato-de- 

 curvatulis. Folia caulina remotiuscula, pellucida, patentia, 

 longissime et latissime decurrentia, rhomboidi-triangularia, sen- 

 sim vel subsensim longe acutissima, concava, baud plicata, 

 margine solum infra partem latissimam, saepissime distincte 

 auriculatam, folii recurvato, ceterum piano, plus minusve in- 

 tegro, nervö tenui, ad vel paullo supra medium dissoluto; cel- 



