16 ■ 



■- 1 



Folia radicalia confeita, petiolata, lanceolataj integerrima, 

 aut dentata, aut lyrato - pinnatifida, aut pinnata, ad den- 

 tium apices saltern ciliata, disco glabra, vel parce pxlosa, 

 piK simpUceS) rarius bifiirci, rari* Petioli basi ciliati. 

 Caules 2-3 exquoque radicis capite lateraliter orientes, 

 spithamaei, erecti nee admodum stricti, simpliceS, glabri. 

 Folia caiilina sparsa, S-Sj lanceolate -linearia, acutiuscula 

 aut obtusa, inferiora saepius in petiolum attemiata, dente 

 wno alterove insthicta, superiora integemma. Racemus 

 terminalis, 6-lOilorus. Pedunculi calyce tripio longiores, 

 fructiferi paullulum elongati apicecfiie pamm incrassati, 

 inlimus bractea iiliformi ipso breviori saepius sui3Pultus. 

 FZos paullo major quam Arabidis alpinae. Petala calyce 

 duplo iongiora, alba aut purpurascentia, late obovata, in- 

 tegerrima. Gkniiula inter Sepala superiora et staniipa 

 majora. 



3. Arabis amhigua l)C, I, c. p*23i, 



B, iiitej'jnedia. 



' . ■ ■' ■ ' 



Arabis lyrata Zlerh. Willd. n, I2i87> specimen pen,' 

 sylvanicum dextrutn^ sinistrum est Arabis m'&iosa* 



Arabis Ijrata Lin? , 

 . In arenosis graminosis Kttoralibus insulae Unalaschka 

 copiose. Annis t%lp et 1817. 



Descriptio, Radix ramosa biennis, primo et altero 

 anno caules fructiferos proferens, nee plures annos per- 

 durans« Caules plures, 4-^8j basi adscendentes, erectit 

 florentes digital js spithamaei, Iruqtiferi digitales aut ses- 

 quipedales, simplices aut ramosi, omnino glabri aut «t 

 in Arabide arenosa pilis retrorsis hirti. Folia radicalia 

 .conferta, petiolataj lyrato^pinnatifida, glabra, pilis pei*- 

 paucis simplicibus rarissinie ciliata. Petioli basi ciliatt, 

 Folia caulina infera ovalia, in petiolum attenu^ta, sae- 

 pius dentata, superiora angusta integerrima. Racemus 



terminalis (S-lGflorus. Pedunculi ebractati, calyce qwa- 



druplo 



