STUDIES IN THE GENUS AMORPHA 



Having recently both occasion and opportunity to give con- 

 siderable study to the species of the genus Amorpha occurring 

 in the southeastern portion of the United States, the writer has 

 become convinced that there are a number of well marked forms 

 now unrecognized in the classification adopted by current bota- 

 nies. Besides the species usually admitted to the genus and those 

 described below, there is little doubt that a careful and more 

 extended study of certain forms, both in the field and subjected to 

 cultivation, will reveal others with valid and constant characters. 

 In pursuing my studies I have had spread before me in addition 

 to the specimens in the Biltmore Herbarium, the material of the 

 Gray Herbarium of Harvard University, the Missouri Botanical 

 Gardens, United States National Herbarium and the Philadel- 

 phia Academy of Sciences. The writer wishes to acknowledge 

 with grateful thanks the assistance accorded him by the gentle- 

 men in charge of the respective collections. 



Amorpha montana n. sp. 



A glabrous, much-branched shrub i-2 m high. Leaves 7-i5 cm 

 long ; leaflets 9-19, ovate, oblong-ovate or oval, 2~5 cm long, thin, 

 glabrous on both surfaces, obtuse, often emarginate, rounded or 

 subcordate at the base : racemes usually clustered, 6-i5 cm long, 

 glabrous : calyx campanulate, about 3 mm long, the sepals very 

 shallow and sparsely ciliate : standard orbicular, short clawed, 

 about 7 mm long : legume 7-8 mm long, rounded on the ventral edge, 

 nearly straight on the dorsal, light brown, marked with a few small 

 glands. 



Amorpha montana differs from A. virgata Small, 66 with which it has been 

 confounded, by its much-branched habit, by having thin, perfectly glabrous leaf- 

 lets and by the very short sepals, which in fruit are often but a wavy border. It 

 is common in the mountains and foothills of North and South Carolina, Tennes- 

 see, Alabama and Georgia. The type material was collected at Biltmore, N. C, 

 and is represented by specimens distributed by the Biltmore Herbarium as No. 14, 

 Biltmore, N. C. ( May 13 and August 29, 1896. 



6 6 Bull. Torr. Bot. Club 21 : 17, 1894. r 

 (138) 



