320 Rydberg: Notes on Rosaceae 



Alchemilla pratensis F. W. Smith and the three succeeding 

 species are segregated from A. vulgaris L. A. pratensis has 

 usually been known here under the name A. vulgaris and has 

 become naturalized from Nova Scotia to Massachusetts. 



Alchemilla Wichurae Buser has been collected only in East 

 Greenland. 



Alchemilla glomerulans Buser and A. filicaulis Buser range on 

 this side of the Atlantic from Greenland to Labrador, and the 

 latter has been collected also on Newfoundland. 



APHANES 



See remarks under Alchemilla. The true Aphanes arvensis L. 

 has been collected in America in Nova Scotia, evidently there an 

 introduced plant. The American plants, included in it or con- 

 fused with it, have much smaller flowers, the hypanthium being 

 only i mm. instead of nearly 2 mm. long. They were distinguished 

 in the North American Flora as four species, differing in minor 

 characters. 



Aphanes australis Rydb. includes all specimens collected in the 

 southeastern United States. It differs from those on the Pacific 

 coast in the short ovate sepals, connivent in fruit. In the western 

 species the sepals are lanceolate to ovate-lanceolate and ascending 

 in fruit. 



Aphanes macrosepala Rydb. differs in the elongated sepals, 

 nearly as long as the densely pilose hypanthium. 



Aphanes occidentalis (Nutt.) Rydb. and A. cuneifolia (Nutt.) 

 Rydb. have short sepals and puberulent or glabrous hypanthium. 

 They differ from each other in the form of the leaves. 



LACHEMILLA 



See remarks under Alchemilla. 



Lachemilla orbiculata (R. & P.) Rydb. and L. venusta (Cham. & 

 Schlecht.) Rydb. belong to a group in habit and leaf-form approach- 

 ing the genus Alchemilla, but the plants are sarmentose. Both 

 Alchemilla orbiculata R. & P. and A. pectinata HBK. have been 

 recorded for Mexico and Central America. It is evident that the 

 specimens labeled as either of the two constitute but one species. 

 A closer examination of literature and specimens has revealed 



