340 



ledones accumbentes. Calyx erectus." Hitherto, however, 

 only one species has been known to Botanists, and that is an 

 inhabitant of the Ahaic Mountains, near the limits of perpe- 

 tual snow; and has a habit so unlike the Crucife?'ous plants 

 in general, that Vahl, in his herbarium, as we are assured by 

 De Candolle, marked it as a Cleome. Of this, the Macropo- 

 dium nivale of Brown, I am not aware that any figure exists, 

 except the one published in Pallas' Travels, a work probably 

 in the hands of few Botanists, and where it is not to be ex- 

 pected that the analysis of the fructification is exhibited with 

 the precision that will be satisfactory to those who adopt the 

 new arrangement of the still difficult and most extensive 

 family of plants to which this genus belongs. On this ac- 

 count, and because I possess no perfect fruit of the new 

 species, I shall render my account of this genus more com- 

 plete by representing that of M. nivale. 



Gen. Char. Cal. erectus, basi latiore. Petala calyce 

 multo longiora, linearia vel lineari-spathulata. Stamina 

 libera. Antherce lineares, vel oblongse. Stylus subnullus. 

 Stigma parvum, capitatum. Siliqua stipitata, lineari-ensi- 

 formis, compresso-plana, pedicellata: valvis planis, ob- 

 scure reticulatis, medio uninerviis. Semina suborbicularia, 

 compressa, uniseralia, vix, nisi in statu juniore, marginata. 

 Cotyledones accumbentes. — Radix annuus vel perennis. 

 Caulis herbaceuSi simplex vel ramosus. Folia integra vel la- 

 ciniata. Racemus terminalis,longus,midtiJlorus. Flores alhi. 



1. Macropodium nivale; foliis lanceolatis caulinis sessilibus 

 integerrimis, radicalibus longe petiolatis obscure serratis, 

 floribus sessilibus, petalis lineari-spathulatis. (Tab. 



Lxvn.) 



M. nivale. Br. in Hort. Kew, ed. 2. v. 4. p. 108. De Cand. 

 Prodr. V. 1. p. 149. 



Cardamine nivalis. " Pall. It. 2. Append, v. 113. t. U." 

 mild. Sp. PI. V. 3. p. 482. 



Arabis nivalis. Spreng. Syst. Veget. v. 2. p. 893. 



Hab. In alpibus Altaicis, unde recepi ab amicissimis. Le- 

 debour, Fischer, Prescott. 



