BOTANY OF THE JfiTR PARALLEL. 185 



tion of last summer, likely to be supplied to botanists. As 

 to Mr. "Watson's R. orthorhynchus var. alpinus, that is cer- 

 tainly not of this species, but a wholly new one, unless it be the 

 rare, and to us obscure, M. pedatijidus of Smith, or at least of 

 Hooker. For since Schlechtendal's plant of that name has 

 been referred to R. offinis, the Siberian one of Smith may also 

 be of that species. 



A yellow-flowered Aquilegia, with flowers rather smaller 

 and sometimes much smaller than those of A. Canadensis, and 

 with spurs shorter than the widely spreading sepals, after the 

 manner of A. formosa, and more or less curved (thus approach- 

 ing the European type), which has been collected by Lyall, 

 Bourgeau, and others, is now characterized as a new species, 

 under the name of A.jlavesccns, Watson. It should be noted 

 that this has been cultivated in European gardens, from seeds 

 collected by Roezl, under the name of A. aurea, but it is 

 doubtful if it is yet published under that name. 



The Cruciferce constitute an important order in the interior 

 basin and its borders. One of Mr. "Watson's most notable 

 discoveries is that of Brown's Parrya macrocarpa, hitherto 

 found only on the Arctic coast. It was detected on the high- 

 est peak of the Uintas, at an altitude of 12,000 feet. The 

 next point of interest is found in our author's discoveries and 

 views of plants of the Streptanthus and Thelypodium type. 

 Two or three well-marked new species are introduced, and 

 Xuttall's obscure Streptanthus cordatus is confidently identi- 

 fied. In the present view this is the only Streptanthus of the 

 collection ; Mr. Watson, having ascertained that several spe- 

 cies, such as S. procerus, the curious S. crassieaidis, and two 

 new species, have oblong seeds in a terete elongated pod, 

 and cotyledons inclining to be incumbent in the manner of 

 Thelypodium, combines them into his new genus, Caulanthus. 

 And Iodanthus, with a few other species, some of which had 

 already been excluded from Streptanthus, are referred, as had 

 also been tentatively suggested, to Thelypodium. Which is 

 all to be highly approved, except, perhaps, the expediency of 

 the new genus, when all could be disposed in the two genera : 

 Streptanthus for the species with flat or flattish pods, flat 



