328 



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Cpstopteris idamUca Gdgr. Petiolis omnino pallide flavo- 

 viresceutibus; foliiim 15—16 cm. altum, 27^ cm. latum, ambitu 

 aagiistissime oblongum, in apicem sensim aciimiuatum; segmentis 

 sat erectis, ambitu obovato-oblongis, deutibus integris, breviter ovato- 



acutiusculis. 



Hab. Islaudia, in saxosis frigidis ad Reykiavik, Klofa Jökul 



(Krabbe). 



Folium iiiferne valde interriipte pinnatum, gracile, flexuosum; 



segmeuta suberecta nee patiila. 



Cystopteris pycnoloha Grdgr. Petiolis basi nitide fusco-bnm- 

 neis, apico pallidis; foliiim 25 cm. altum, 5Va cm. latum, ambitu 

 late oblongum , superne sensim longeque acuminatum ; segmentis 

 rectis, ambitu late oblougis^ sensim acutis, minute nervoso^albidis: 

 lobis obovatis, basi sat dilatata, dentibus obovatis, integris, pro- 

 fundis, obtusis, media parte linea alba translucente notatis. 



Hab. Gallia, in saxosis alpinis Delphinatus (Gdgr.) 

 A praecedentibus lobis, condensatis, margine profunde dentatis 

 potiusque laciniatis, serraturis albo-lineatis, optime diversa. 



Gystopteris Schtdfziana Gdgr. Petiolis usque ad segmenta 

 subfusco-rabentibus ; folium 20 cm. altum, 372 cm. latum, ambitu 

 oblongum, in apicem longum abrupte acuminatis; segmentis sub- 

 rectis, ambitu oblougo-subacutis, nervis virescentibus, minutis; lobis 

 obovatis, basi sat contractis, dentibus ovato-ellipticis, obtusiuseulis. 



Hab. Palatinatus, infissurisrupiumumbro3orum(Schultzbip.)- 

 Ab antecedente diflfert lobis multo bre\ius dentatis, laxioribusque, 

 folio apice longius aeuminato, segmentis paulo magis patulis etc. 



Cystopteris cancasica Gdgr. Petiolis omnino intense fuscis; 

 folium 15 -16 cm. altum, 4 cm. latum, ambitu oblongum, superne 

 sensim longeque acuminatum; segmentis valde patulis, ambitu ob- 

 longis, sensim subacutis, norvis pallidis vix perspicuis; lobis obovato- 

 oblongis, basi abrupte truncato-acutis, dentibus triangulari-acutis. 



Hab. Caucasus Orient., in alpinis Daghestaniae (Becker). 



Polia a rhizomate pluria, flexuosa; lobi inferiores sublobulati 

 tunc undulato-subdenticulati, apice acutiusculi. 



ff Loborum serraturae denticulatae lobulisve 3— 4-dentatis. 



Cystopteris nivalis Gdgr. Petiolis omnino virescentibus; folium 

 30 cm. altum, 67^ cm. latum, ambitu oblongum, superne longe con- 

 tractum; segmentis subpatulis, oblongis, apice parimi breviterque 

 attenuatis, nervis prominulis, brunneis; lobis late obovato-oblongis, 

 basi valde dilatata, lobulis ovato-ellipticis, obtusis, apice saepe sae- 

 pius latiuscule tridentato-acutis. 



Hab. Islandia, in saxosis frigidis ad Klofa Jökul et propo 

 Reykiavik (Krabbe). 



Species robusta, flexuosa, amoene virens; lobi valde minuteque 



nervosi. 



(Fortßetzting folgt.) 



*X^ 



