DE CANDOLLE'S PRODROMUS. 27 



Virginica, to which last he evidently would refer S. mucro- 

 nata, Bigelow, a name unknown to him (and he has also 

 dropped, apparently by accident, the homonym of Lagasca, so 

 that the point in which we are interested is not elucidated) ; Ar- 

 throcnemum (A.? ambiguum — Salicomia ambigua, Michx.) 

 being still kept distinct. Of the Spirolobece we have in 

 North America, Chenopodina, a genus newly founded for the 

 Chenopodium maritimum, L., which was formerly referred 

 to Suasda, besides which species Tandon also gives us C line- 

 aris, Ell., which, however, he thinks may be a variety of C. 

 prostrata, which again he thinks may not prove distinct from 

 C. maritima, and C. depressa (Salsola depressa, Pursh) ; 

 of Shoberia, we have S. calceoliformis ( Chenopodium calceoli- 

 forme, Hook.), which is stated also to be found " near New 

 York " ; of Salsola, we have S. kali only. The singular genus 

 Sarcobatus of Nees (the Fremontia of Torrey in the reports 

 of Fremont's first and second journeys) is enumerated among 

 the Genera exclusa, and said to be " dubise sedis." Prob- 

 ably the author had not seen the figure of the fertile plant 

 published by Dr. Torrey. Acnida, following the aspect and 

 inflorescence, is here referred to the Amarantacece. 



The order fiasellacece, familiar to us only by the Bous- 

 singaultia baselloidcs, which is cultivated as an ornamen- 

 tal climbing plant, contains six genera, entirely of tropical 

 plants. 



The order Amarantacece includes forty-five genera, ar- 

 ranged under three tribes. There are credited to this coun- 

 try : Celosia, one Californian species ; Amaranthus, about 

 nine species ; Mengea of Schauer, a Californian species which 

 has much the aspect of Amarantus Blitum ; one or more 

 species of Euxolus, Raf. (Amarantus lividus, L. etc.) : 

 Acnida, in which A. rusocarpa appears to be mixed up, in a 

 manner that requires much investigation to unravel, with 

 Amarantus tamariscinus, Nutt., which again, though entirely 

 distinct from Acnida itself, nearly accords in character with 

 Moquin-Tandon's section Montelia ; Banalia, a new genus, 

 one section of which includes an Oregon species (Halomocne- 

 mis occidentalism Nutt., ined.) ; an obscure Polycnemum ; 



